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7-17

IM CW120-E

Making Settings

7

 NOTE

Set a valid date and time.

• You cannot set the stop date and time to the same time or before the start date and time.

• Resetting the system changes the integration stop date and time to 30 minutes after the cur-

rent time (since the output interval is initialized to the default, 30 minutes).

TIP

For the year, set the last two digits.  The range of the year setting is 00 to 99 (years 2000 to 2099).

SEE ALSO

For details of the start and stop of integration, see Section 9.2, “Starting and Stopping Integration.”

7.2  Setting Each Item

Содержание CW120

Страница 1: ...M CW120 E IM CW120 E First Edition Dec 2001 YG Before Use Before starting measurement with your CW120 or CW121 fill in the Setting Check Sheet in the back of the Operation Guide IM CW120P E with your particular settings to facilitate setting on site ...

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Страница 3: ...this manual carefully store it in a convenient place for future reference Notes The contents of this manual are subject to change without prior notice In addition figures and illustrations representing display appearances in this manual may differ from the actual appearances Every effort has been made to ensure the accuracy of this manual If you notice any errors or have any questions however plea...

Страница 4: ...With RS 232 C interface With RS 485 interface Clamp on current probe for 20 200 A 2 pieces set Clamp on current probe for 20 200 A 3 pieces set Clamp on current probe for 50 500 A 2 pieces set Clamp on current probe for 50 500 A 3 pieces set Clamp on current probe for 200 1000 A 2 pieces set Clamp on current probe for 200 1000 A 3 pieces set Clamp on current probe for 5 50 A 2 pieces set Clamp on ...

Страница 5: ...of probe kits Clamp on current probe for 200 1000 A 96032 1 See the option codes for a choice of probe kits Clamp on current probe for 5 50 A 96033 1 See the option codes for a choice of probe kits Power supply cable 98030 1 Not applicable to CE and UL pending Voltage probes for CW121 91007 4 1 set Voltage probes for CW120 91018 3 1 set RS 232 serial printer cable 91010 1 Printer 97010 1 With 1 th...

Страница 6: ...ds and so is useful for transporting a complete set of tools necessary for measurement The optional meter case can be used as a stand during measurement as shown below right It also has a magnetic rear plate and so can be stuck to the door of a power distribution panel or the like Note Keep the meter case away from objects vulnerable to a magnetic field such as floppy disks Clamp on current probes...

Страница 7: ...ge to the instrument Direct Current This symbol indicates DC voltage current Alternating Current This symbol indicates AC voltage current ON This symbol indicates On power OFF This symbol indicates Off power Double Insulation This symbol indicates double insulation WARNING Indicates a hazard that may result in the loss of life or serious injury of the user unless the described instruction is abide...

Страница 8: ...ed current of the circuit you measure matches the rating of the current probe Avoid using the instrument if it has been exposed to rain or moisture or if your hands are wet Do not use clamp on current probes with any non insulated conductors Measures In Case of Anomalies If the instrument begins to emit smoke becomes too hot or gives off an unusual smell imme diately turn it off and disconnect the...

Страница 9: ...tartup Screens 4 4 4 4 Basic Operation Flow 4 6 Chapter 5 Wiring 5 1 5 1 Precautions for Wiring the Circuit under Test 5 1 5 2 Diagrams of Basic Wiring 5 2 5 3 Wiring the Circuit under Test with External VT CT 5 4 5 4 Indication and Change of Wiring Method 5 5 5 5 Wiring Check Function 5 6 Chapter 6 Setting Ranges and Wiring Method 6 1 6 1 Ranges and Display Digits 6 1 6 2 Changing Voltage Range S...

Страница 10: ...11 2 RS 485 11 6 11 3 Data Format 11 9 Chapter 12 Auxiliary Functions 12 1 12 1 Convenient Functions 12 1 12 2 Using Optional Printer 12 3 Chapter 13 Troubleshooting 13 1 13 1 Corrective Measures in Case of Failure 13 1 13 2 Error Codes 13 2 Chapter 14 Specifications 14 1 14 1 Specifications of CW120 121 14 1 14 2 Specifications of Clamp on Current Probes 14 8 Appendix 1 Circuit Block Diagram App1...

Страница 11: ...s App2 20 3 Command Effectiveness Tables App2 24 Appendix 3 File Structures and Data Items Printed App3 1 1 Overview App3 2 2 Measured Data App3 3 2 1 File Format App3 3 2 2 Print Format App3 5 3 Settings App3 6 3 1 File Format App3 6 3 2 Output Format and Data Values App3 7 3 3 Print Format App3 9 4 Automatic File Naming App3 10 Index Index 1 ...

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Страница 13: ...test A PC card slot for large removable memories such as flash ATA and compact flash cards allows measurement over a long time Instantaneous value saving Simply pressing the SAVE key will save the measured values Wiring error check The connections are checked and any error is displayed before the start of measurement Broad Ranges Voltage range 150 300 450 V Current range 4 types of clamp on probes...

Страница 14: ...er distribution panel during measurement The 96033 current sensing probe with a 5 to 50 A range is designed for use in a narrow space so is useful for measurement inside a power distribution panel with dense wiring Easy to see Display Screen Despite the compact body the large back lit LCD enables easy measurement in a dark place ...

Страница 15: ...ation device Making communication settings Setting VT ratio Setting CT ratio Selecting probe to be used Setting decimal point and unit of electric energy watt hours Saving settings 7 2 2 Loading saving setting File WTH000 SET Electric energy watt hour measurement Data saving Auto saving 7 2 7 Setting output interval File AWTH000 CSV Instantaneous value measurement Data saving File MWTH000 CSV key ...

Страница 16: ...RIGHT key is pressed as follows display contents differ depending on the wiring method Screen 1 V1 A1 V1 V2 V1 V2 Screen 2 W Var A1 A2 V3 A1 Screen 3 PF Hz W Var A2 A3 Screen 4 Wh TIME PF Hz W Var Screen 5 Wh TIME PF Hz Screen 6 Wh TIME Displayed Item Single phase two wires 1 2W Single phase three wires 1 3W Three phase three wires 3 3W Three phase four wires 3 4W Phase Wires Display Position Uppe...

Страница 17: ...2 1 IM CW120 E Components and Indications 2 Chapter 2 Components and Indications 2 1 Front Panel and Connector Block Dimensions Connector Block Front View 117 51 Unit mm 161 Side View ...

Страница 18: ...wer supply connector Power switch Power supply connector PC card slot PC card eject button PC card eject button RS 232 connector PC card slot RS 232 interface RS 232 connector Used to connect to a PC or printer optional Internal control input IN terminals Used to connect the integration start stop input signals Internal control output OUT terminals Used to connect the integration start stop output...

Страница 19: ... to the voltage input terminals Miswiring can result in not only dam age to the circuit or equipment under test but also injury to personnel Do not connect any probes which are not necessary i e not used for the current measure ment even though multiple probes can be connected to the CW120 121 at the same time Do not use any probe other than the clamp on current probes or voltage probes supplied D...

Страница 20: ...ack red and yellow CW121 Four black red yellow and blue Differentiating between Clamp on Current Probes Use accompanying ring markers of four different colors to differentiate clamp on current probes for correct connections CW120 Terminals CH1 to CH2 CW121 Terminals CH1 to CH3 Use of Ring Markers Attach ring markers of the same color to both ends of the probe cable for easy identification CAUTION ...

Страница 21: ... the keys Pressing this key for three seconds locks the keys To unlock press the key again for three seconds or more Saves the measured data during instantaneous value measurement Switches over the display between the measurement and setting screens Starts and stops integration Confirms an entry such as a change to a setting Cancels a setting and returns to the preceding screen Also used to clear ...

Страница 22: ...0 of the rated voltage or if the rms value of the measured voltage exceeds 110 of the rated range 450 V range If the sampled value exceeds 156 of the rated voltage or if the rms value of the measured voltage exceeds 110 of the rated range Indicates an overcurrent This mark appears if the sampled value exceeds 300 of the rated current or if the rms value of the measured current exceeds 110 of the r...

Страница 23: ...Small Displayed Item Voltage Current Active power Reactive power Active electric energy Condition 1 5 V 0 4 of rated range 0 17 of rated range 0 17 of rated range 0 17 of rated range Indication 0 V 0 A 0 W 0 Var 0 Wh integration stopped Displayed Item Reactive power Power factor Frequency Condition V1 input 10 of rated range or frequency 40 Hz or 70 Hz The voltage or current is displayed as or V1 ...

Страница 24: ...g Measurement Displayed Mark Lights when integration is carried out flashes when integration is on stand by Lights when integration is controlled by external signals Lights when PC card memory is full Lights when the backup memory contains data Lights when the battery voltage is low Lights when the keys are locked Lights when data saving to the PC card is enabled flashes during access to the PC ca...

Страница 25: ...and times Appears when a power failure has occurred or the power has been turned off during standby or integration Appears when the backup data is copied from the backup memory to the PC card Appears when a PC card is not inserted Shows the file number and data record number when saving measured instantaneous values Shows the file number when integration begins in the case that data saving to a PC...

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Страница 27: ...Otherwise the internal circuitry may be destroyed Do not apply any mechanical shock to the signal terminals Otherwise such impact may be transformed into electrical noise and input to the instrument Protection of Case and Operation Panel Do not spray any volatile chemical on the case or operation panel Do not leave any rubber or vinyl product in contact with the instrument for a prolonged period O...

Страница 28: ...T current transformer is precision assembled to ensure high performance When using the clamp do not apply any intense mechanical shock vibration or force to the clamping CT If dust or any other foreign matter gets in the clamping CT do not shut the clamping cores tight First remove the dust and then make sure the clamping cores on both sides close smoothly ...

Страница 29: ... CATEGORY IV INSTALLATION CATEGORY OVERVOLTAGE CATEGORY IV Primary supply level overhead lines cable systems etc This category is not relevant to this standard The CW120 121 meet the following overvoltage categories with the respective usage voltages Voltage measurement circuit 600 V CAT III and 300 V CAT IV Power supply 240 V CAT II Pollution Degree Pollution degree describes the degree to which ...

Страница 30: ... CW120 121 in a location that is exposed to direct sunlight or close to a heat source close to a noise source such as high voltage equipment or a power source exposed to a relatively large amount of lampblack steam dust or corrosive gas exposed to frequent mechanical vibration close to a source of strong electromagnetic fields or unstable 3 2 Installation Procedure ...

Страница 31: ...ure and humidity or if there is a sudden change in the ambient temperature condensation may occur in the meter If this happens let the meter stand for at least one hour to allow it to adapt to the new ambient temperature and for condensation to evaporate Then start operating the meter Relationship between Clamp and Conductor 1 When performing a measurement hold the clamp on probe so that the condu...

Страница 32: ......

Страница 33: ...om the outlet Do not place any load on the power cord or allow the power cord to come into accidental contact with a heat source Be sure to hold the plug of the power cord rather than holding and pulling the cord itself when disconnecting it from the outlet Procedure for Connecting Power Cord Follow the steps below to connect the power cord 1 Make sure the power switch of the CW120 121 is turned o...

Страница 34: ...t the PC card eject button is depressed The CW120 or CW121 will not work if the fuse built into the power supply circuit of the CW120 or CW121 has blown Built in fuses cannot be replaced by the user For replacement contact the vendor from which you purchased the instrument 4 1 When Using AC Power Supply ...

Страница 35: ...re the power switch of the CW120 or CW121 is turned off Do not place any load on the power cord or allow the power cord to come into accidental contact with a heat source Procedure for Connecting 98030 Power Supply Cable Follow the steps below to connect the 98030 power supply cable 1 Make sure the power switch of the CW120 121 is turned off 2 Insert the plug of the 98030 power supply cable into t...

Страница 36: ...2 seconds then the screen changes to the model and version display 2 Model and Version Display Screen Upper Model number Lower Version number While the display is turning on all segments and showing the model and version numbers the CW120 121 performs a self test If no error is found the measurement screen appears 3 Measurement Screen Example of measurement screen Upper Rms voltage Lower Rms curre...

Страница 37: ...easurement screen NOTE If an error is found with any of test item Nos 1 3 and 4 backup SRAM check real time clock check and setting check the settings date and time will be initialized The above situation may occur when the backup battery has become flat When the low battery sign is displayed on the screen the backup battery needs to be replaced The backup battery cannot be replaced by the user Fo...

Страница 38: ...ment Instantaneous value measurement Electric energy measurement Calls up wiring setting Calls up voltage range setting Calls up current range setting Check wiring for error Turn on power to CW120 121 press 3 sec Chapter 4 Chapter 4 Chapter 4 Chapter 7 Chapter 5 Chapter 5 When skipping wiring check Chapter 8 Chapter 9 Chapter 6 When no setting is needed key key key key key key key key ...

Страница 39: ...96032 probe 700 Arms 1000 Arms for 5 minutes Input ratings for each range Voltage input 150 300 450 V Current input for 96033 probe 5 10 20 50 A for 96030 probe 20 50 100 200 A for 96031 probe 50 100 200 500 A for 96032 probe 200 500 1000 A SEE ALSO For details see Chapter 14 Specifications WARNING If using an external voltage transformer VT or current transformer CT make sure the trans former can...

Страница 40: ...ring using illustrations Single phase two wires 1 2W 1 SOURCE LOAD N N V1 CH1 Single phase three wires 1 3W 1 SOURCE LOAD N 2 N V1 V2 CH1 CH2 Three phase three wires 3 3W 1 SOURCE LOAD 2 3 N V1 V2 CH1 CH2 Three phase four wires 3 4W Only for CW121 N SOURCE LOAD 1 2 3 N V1 V2 V3 CH2 CH1 CH3 ...

Страница 41: ...probes Wiring Method Phase Lines Single phase two wires 1 2W Single phase three wires 1 3W Three phase three wires 3 3W Three phase four wires 3 4W Voltage Inputs Terminals N V1 Units V1 Terminals N V1 N V2 Units V1 V2 Terminals N V1 N V2 Units V1 V2 Terminals N V1 N V2 N V3 Units V1 V2 V3 Current Inputs Terminals CH1 Units A1 Terminals CH1 CH2 Units A1 A2 Terminals CH1 CH2 Units A1 A2 Terminals C...

Страница 42: ...be measured When to use a VT and how If the maximum voltage of the circuit exceeds 450 V connect an external VT and connect the secondary stage of the VT to the voltage input terminals When to use a CT and how If the maximum current of the circuit exceeds the following value connect an external CT and clamp the secondary stage wire of the CT with a current probe 96033 probe 50 A rated at 5 10 20 5...

Страница 43: ...y above the screen as 1 2W 1 3W 3 3W and 3 4W 3 4W is not included for the CW120 and the sign on the screen indicates the wiring method currently selected in the CW120 121 WIRING WIRING key Wiring methods To change the wiring method press the key Each time you press the WIRING key the moves to change the selected wiring method ...

Страница 44: ...es of the plugs and jacks and the arrow symbols on the clamps corre sponding to the source to load directions of the circuit Do not use a clamp on current probe with any non insulated conductor Check Items The following items are checked and judged and then the result of each check item will be displayed as shown on the next page For each voltage input For each current input 1 Existence of input v...

Страница 45: ...approximately 140 degrees or less than approximately 100 degrees an error results Or if V3 leads V1 by more than approximately 140 degrees or less than approximately 100 degrees an error results Else Good is displayed Current Inputs A A A Item 1 Existence of input currents 2 Clamp directions Error Message in lower row Error message Error message Criteria If an input level is 1 or less of the range...

Страница 46: ...ast three seconds START STOP key WIRING START STOP 2 Press the key Then stops flashing and the wiring check begins 3 When no error has been found is displayed on both the upper and lower rows Press the key to return to the measurement screen Upper Judgment of current inputs Lower Judgment of voltage inputs WIRING key When no error WIRING START STOP START STOP key 5 5 Wiring Check Function ...

Страница 47: ... Check and correct the connections then press the key to carry out the wiring check again To return to the measurement screen press the key Example of error indications Upper No current input Lower Voltage phase sequence error when frequency error WIRING key START STOP key WIRING START STOP 5 5 Wiring Check Function ...

Страница 48: ......

Страница 49: ...n probe 20 50 100 200 A 96031 clamp on probe 50 100 200 500 A 96032 clamp on probe 200 500 1000 A Range of Active and Reactive Powers The range of active and reactive powers is determined by the voltage range current range and wiring method set as follows Wiring Method Phase Lines Single phase two wires Single phase three wires Three phase three wires Three phase four wires only for CW121 Power Ra...

Страница 50: ... 50 kW 100 0 A 15 00 kW 30 00 kW 30 00 kW 45 00 kW 30 00 kW 60 00 kW 60 00 kW 90 00 kW 45 00 kW 90 00 kW 90 00 kW 135 0 kW 200 0 A 30 00 kW 60 00 kW 60 00 kW 90 00 kW 60 00 kW 120 0 kW 120 0 kW 180 0 kW 90 00 kW 180 0 kW 180 0 kW 270 0 kW 500 0 A 75 00 kW 150 0 kW 150 0 kW 225 0 kW 150 0 kW 300 0 kW 300 0 kW 450 0 kW 225 0 kW 450 0 kW 450 0 kW 675 0 kW 1 000 kA 150 0 kW 300 0 kW 300 0 kW 450 0 kW ...

Страница 51: ... 100 1 10 100 1 to 9 999 to 99 99 to 999 9 to 9 999 to 99 99 to 999 9 to 9 999 10 A A A kA kA kA MA MA A A A kA kA kA MA MA Frequency Maximum Display Digits 4 Decimal Point Position and Unit 70 00 Input Frequency 40 to 70 Hz Hz Power Maximum Display Digits 4 Rated Power VT Ratio CT Ratio 1 3 to 999 9 to 9 999 to 99 99 to 999 9 to 9 999 to 99 99 to 999 9 to 9 999 to 99 99 to 999 9 to 9 999 to 99 99...

Страница 52: ... Wh kWh MWh and GWh By selecting STANDARD you can also let the CW120 121 automatically set them as follows Multiply by 1 3 only when the CT or VT ratio is a value other than 1 Rated Power VT Ratio CT Ratio 1 3 1 to 9 999 10 to 99 99 100 to 999 9 1 to 9 999 10 to 99 99 100 to 999 9 1 to 9 999 10 to 99 99 100 to 999 9 1 to 9 999 10 to 99 99 100 to 9999 W W W kW kW kW MW MW MW GW GW GW Decimal Point ...

Страница 53: ...ly starting integrating power clear the electric energy count and the elapsed time of integration Otherwise the electric energy count will be added to the previous value For details of how to clear the electric energy count see Section 9 2 3 Clearing Electric Energy Count or Section 7 2 4 Clearing Electric Energy Count and Resetting System in Chapter 7 Making Settings 6 1 Ranges and Display Digits...

Страница 54: ...ived from other settings is displayed and the change is ineffective First change other settings such as the current range VT ratio CT ratio and wiring method then change the voltage range The voltage range cannot be changed during continuous measurement The voltage range cannot be changed when the electric energy count is not zero Pressing the key at this time causes to appear on the screen this w...

Страница 55: ...e range setting is incompatible with the conditions derived from other settings is displayed and the change is ineffective First change other settings such as the current range VT ratio CT ratio and wiring method then change the voltage range The voltage range cannot be changed during continuous measurement The voltage range cannot be changed when the electric energy count is not zero Pressing the...

Страница 56: ... screen Clamp on Current Probe Models and Ratings Clamp on Current Probe Model 96033 96030 96031 96032 Setting 50 A 200 A 500 A 1000 A Rating Ranges 5 10 20 50 A 20 50 100 200 A 50 100 200 500 A 200 500 1000 A Default 200 A Procedure to Change Probe Selection 1 Press the key when the measurement screen is displayed The screen switches to the setting item selection screen and the sign appears in th...

Страница 57: ...ived from other settings the change is ineffective First change other settings such as the voltage range VT ratio CT ratio and wiring method then change the probe selection The current probe cannot be changed during continuous measurement The current probe cannot be changed when the electric energy count is not zero and an attempt to change causes to appear on the screen this will disappear and th...

Страница 58: ...onditions derived from other set tings the change is ineffective First change other settings such as the voltage range current range VT ratio and CT ratio then change the wiring method The wiring method cannot be changed during continuous measurement The wiring method cannot be changed when the electric energy count is not zero Pressing the key at this time causes to appear on the screen this will...

Страница 59: ...6 11 IM CW120 E Setting Ranges and Wiring Method 6 For CW121 1 2W 1 3W 3 3W Default 3 3W 3 4W SEE ALSO For details of the wiring methods see Chapter 5 Wiring 6 4 Changing Wiring Method Setting ...

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Страница 61: ...t and resetting of system 5 Copying and clearance of backup memory 6 Date 7 Output interval 8 Integration start date and time 9 Integration stop date and time 10 Data saving to PC card 11 Communication device selection 12 Communication settings 13 VT ratio setting 14 CT ratio setting 15 Clamp on current probe selection 16 Decimal point position and unit selections for electric energy TIP The Setti...

Страница 62: ...HT keys ENTER key key Used to toggle the display between measurement and setting screens The mark is displayed on a setting screen key Used to fix a selection key Used to cancel a setting Pressing this key returns to the preceding screen keys Used to Change the setting item displayed Change a number Change a setting keys Used to Change the setting item displayed Select a digit Change a setting ...

Страница 63: ...ress the key The setting item selection screen then returns 3 After making necessary changes to the settings press the key to return to the measurement screen TIP The MEM backup memory setting is skipped if no data exists in the backup memory and the MEM mark is not lit on the measurement screen The DEV communication device setting is skipped if your CW120 121 model has an RS 485 inter face The se...

Страница 64: ... the keys in the setting item selection screen make the mark and its corresponding setting appear on the screen Then press the key The rightmost digit begins flashing DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key Device Number Setting Screen ESC key 2 Using the keys select the digit to be changed The selected digit flashes 3 Using the keys change the number of the selected...

Страница 65: ...0 to 029 Procedure 1 Using the keys in the setting item selection screen make the mark to appear on the screen Then press the key begins flashing DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key Loading Saving Selection Screen ESC key 2 Using the keys select or 3 Press the key to confirm the selection A three digit number appears on the lower row allowing you to set the file ...

Страница 66: ... be changed The selected digit flashes 6 Using the keys change the number of the selected digit 7 After making necessary changes press the key The settings are then loaded and the setting item selection screen returns You cannot select the file number of a file that does not exist Selecting such a file number returns to the screen for file number setting To cancel loading press the key The screen ...

Страница 67: ...cel saving press the key The screen in step 1 returns NOTE When the number of setting files residing in the inserted PC card has reached 30 you can no longer save the settings Attempting to save settings causes to appear this will disappear and the previous screen will return when any key is pressed Delete an unneces sary file or files and try saving again The loading cannot be performed when the ...

Страница 68: ...ress the key begins flashing DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key Measured data Deletion Screen PC Card Formatting Screen 2 Using the keys select if you want to delete the measured data or if you want to format the PC card 3 Press the key The selected action takes place and the setting item selection screen returns To cancel the data deletion or formatting...

Страница 69: ...tion screen make the mark to appear on the screen Then press the key begins flashing DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key Electric Energy Count Clearance Screen System Resetting Screen 2 Using the keys select if you want to clear the electric energy count or if you want to reset the system 3 Press the key The selected action takes place and the setting ite...

Страница 70: ... Select to delete the data from the backup memory Procedure 1 Using the keys in the setting item selection screen make the mark to appear on the screen Then press the key appears and flashes DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key Copy Screen Deletion Screen 2 Using the keys select if you want to copy the data in the backup memory to the PC card or if you wan...

Страница 71: ...nute second Year month and day 2 Using the keys select an item year month day hour minute or second you want to change The selected item flashes 3 Using the keys change the value of the selected item When changing a number pressing the key continuously will make quick changes 4 After making all necessary changes press the key The date and time settings are changed and the setting item selection sc...

Страница 72: ...s by default and can be selected from 1 2 5 10 15 and 30 seconds 1 2 5 10 15 and 30 minutes and 1 hour Procedure 1 Using the keys in the setting item selection screen make the mark and the current interval setting appear on the screen Then press the key The current setting flashes DISP ENTER MEAS SET ESC MEAS SET key Interval UP DOWN LEFT RIGHT keys ENTER key Output Interval Setting Screen ESC key...

Страница 73: ... on the number of files residing in the PC card and the free space in it the data at the beginning may not be saved for example after approximately fifty thousand samples have been saved at one second intervals If this occurs appears on the screen and data saving is stopped Especially when setting the interval to 1 second make sure that There is no file in the PC card format the PC card to delete ...

Страница 74: ...n make the mark and the current settings of the start date and time appear on the screen Then press the key The day setting flashes DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key Integration Start Date and Time Change Screen ESC key Hour minute second Year month and day 2 Using the keys select an item year month day hour minute or second you want to change where the year mo...

Страница 75: ...ting integration will start at the appropriate time deter mined by the output interval If the start date and time are set to the same as the stop date and time or to later than the stop date and time the stop date and time are automatically set to the point after the output interval from the start date and time Resetting the system changes the integration start date and time to the current time TI...

Страница 76: ...y setting flashes DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key Integration Stop Date and Time Change Screen ESC key Hour minute second Year month and day 2 Using the keys select an item year month day hour minute or second you want to change where the year month and day are shown with superscripts y m and d to avoid confusion The selected item flashes 3 Using the keys cha...

Страница 77: ...hanges the integration stop date and time to 30 minutes after the cur rent time since the output interval is initialized to the default 30 minutes TIP For the year set the last two digits The range of the year setting is 00 to 99 years 2000 to 2099 SEE ALSO For details of the start and stop of integration see Section 9 2 Starting and Stopping Integration 7 2 Setting Each Item ...

Страница 78: ...n press the key The setting flashes DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key Saving Not Saving 2 Using the keys select if you want to enable saving or if you want to disable saving 3 After making a change press the key The change is made effective and the setting item selection screen returns To cancel the change press the key The setting item selection screen...

Страница 79: ...e selection flashes DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key Selecting a Personal Computer Selecting a Printer 2 Using the keys select if you want to connect to a personal computer or if you want to connect to a printer 3 After making a change press the key The change is made effective and the setting item selection screen returns To cancel the change press th...

Страница 80: ... default for even parity for odd parity Stop bits 1 or 2 1 bit by default Procedure 1 Using the keys in the setting item selection screen make the mark and the current communication settings appear on the screen Then press the key The baud rate setting flashes DISP ENTER MEAS SET ESC MEAS SET key Data bits parity stop bits Baud rate UP DOWN LEFT RIGHT keys ENTER key Communication Setting Screen ES...

Страница 81: ...number in the lower row flashes If necessary change the stop bit setting using the keys 6 After making all necessary changes press the key The settings are changed accordingly and the setting item selection screen returns To cancel the changes press the key The setting item selection screen also returns TIP You can move between the baud rate data bit parity bit and stop bit settings from one to an...

Страница 82: ...displayed even in the measurement mode Procedure 1 Using the keys in the setting item selection screen make the mark and the existing VT ratio setting appear on the screen Then press the key The digit of the one place flashes DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key VT Ratio 1 VT Ratio 10000 2 Using the keys select the digit to be changed The selected digit fl...

Страница 83: ... this see Section 9 2 3 Clearing Electric Energy Count or Section 7 2 4 Clearing Electric Energy Count and Resetting System in this chapter A setting that causes the product of VT ratio CT ratio rated power 1 3 to exceed 9999 GW is not allowed TIP Example of VT ratio setting When using a 2200 to 110 V transformer the transformer ratio is 20 1 So set the VT ratio to 20 Displayed values Range of vol...

Страница 84: ...k is displayed even in the measurement mode Procedure 1 Using the keys in the setting item selection screen make the mark and the existing CT ratio setting appear on the screen Then press the key The digit of the one place flashes DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key CT Ratio 1 00 CT Ratio 10000 0 2 Using the keys select the digit to be changed The selecte...

Страница 85: ...o this see Section 9 2 3 Clearing Electric Energy Count or Section 7 2 4 Clearing Electric Energy Count and Resetting System in this chapter A setting that causes the product of VT ratio CT ratio rated power 1 3 to exceed 9999 GW is not allowed TIP Example of CT ratio setting When using a 100 to 5 A transformer the transformer ratio is 20 1 So set the CT ratio to 20 Displayed values Range of volta...

Страница 86: ...200 A 50 100 200 500 A 200 500 1000 A Default 200 A Procedure 1 Using the keys make the mark in the lower right and its current setting appear on the screen Then press the key The number representing the currently selected clamp model flashes Selecting Clamp on Current Probe to Be Used DISP ENTER MEAS SET ESC MEAS SET key UP DOWN LEFT RIGHT keys ENTER key ESC key 2 Using the keys select the number...

Страница 87: ...ange the selection causes to appear on the screen this will disappear and the measurement screen will return when any key is pressed Clear the electric energy count first For details of how to do this see Section 9 2 3 Clearing Electric Energy Count or Section 7 2 4 Clearing Electric Energy Count and Resetting Sys tem in this chapter TIP A maximum of three clamp on current probes may be connected ...

Страница 88: ...9 99 100 to 999 9 1 to 9 999 10 to 99 99 100 to 999 9 1 to 9 999 10 to 99 99 100 to 9999 W W W kW kW kW MW MW MW GW GW GW to 9999 99 to 99999 9 to 999 999 to 9999 99 to 999 999 to 9999 99 to 99999 9 to 999 999 to 9999 99 to 9999 99 to 99999 9 to 999999 0 00 0 0 0 000 0 00 0 000 0 00 0 0 0 000 0 00 0 00 0 0 0 Wh Wh kWh kWh kWh MWh MWh MWh GWh GWh GWh GWh When specifying the desired decimal point po...

Страница 89: ...ET key UP DOWN LEFT RIGHT keys ENTER key When Using Standard Settings ESC key Representing standard 1 Using the keys select 2 Then press the key The settings are changed accordingly and the setting item selection screen returns To cancel the change press the key The setting item selection screen also returns 7 2 Setting Each Item ...

Страница 90: ...T RIGHT keys ESC key Setting Decimal Point Position 1 Using the keys move the decimal point to the desired position 2 Then press the key The setting is changed accordingly and the unit setting begins flashing To cancel the change press the key The setting item selection screen also returns The decimal point moves sequentially by the keys as shown below or or 7 2 Setting Each Item ...

Страница 91: ...C MEAS SET DISP Setting Unit MEAS SET key Select the unit from Wh kWh MWh and GWh using the UP DOWN LEFT RIGHT keys ENTER key UP DOWN LEFT RIGHT keys ESC key 2 Using the keys change the unit 3 Then press the key The setting is changed accordingly and the setting item selection screen returns To cancel the change press the key The setting item selection screen also returns 7 2 Setting Each Item ...

Страница 92: ...When the file name is set the set file name is displayed on the power meter s screen called by pressing the key as shown below NOTE Once the file name is set it remains the same even though integration is repeatedly performed namely the measured data will be added to the same file To reset the file name setting reset the system or set the file name to If the file name is not set it will be assigne...

Страница 93: ...atically depending on the elapsed time Item Rms voltage Rms current Active power Reactive power Power factor Frequency Electric energy watt hours Elapsed time of integration Unit V A W Var Hz Wh Hour minute second Hour minute Hour Displayed Name V1 V2 V3 differs depending on the wiring method A1 A2 A3 differs depending on the wiring method W Var PF Hz input frequency of V1 Wh 00 00 00TIME 0000 00T...

Страница 94: ... chosen is shown below Even for the unseen data items the respective calculations are performed internally Upper Rms voltage Lower Rms current Sequence of Display Contents Switching for Single phase Two Wires Measurement Screen Measurement Screen or or Measurement Screen Upper Power factor Lower Frequency Measurement Screen Upper Electric energy Lower Elapsed time of integration Upper Active power...

Страница 95: ... Upper row Lower row Upper row Lower row Upper row Lower row Name Unit Appearing Next to Each Value V1 V2 V3 Input rms voltages A1 A2 A3 Input rms currents corresponding to CH1 CH2 and CH3 respectively W Active power with minus sign in case of negative value Var Reactive power with minus sign in case of negative value PF Power factor with minus sign in case of negative value Hz Frequency Wh Active...

Страница 96: ...measurement screen is displayed during instantaneous value measurement causes a one shot action of saving all the measured values This action is referred to as manual saving 1 When the measurement screen is displayed press the key The file number then appears on the screen and all the measured values are saved SAVE Saving to PC card mark Data record number File number SAVE key File Number Display ...

Страница 97: ...ecomes full the mark appears and data will not be saved Saving the measured data when the communication device is set to a printer causes the mark to flash and prints the data at the same time as the data saving File Name and Format Measured data are saved to a CSV format file and the file name MWTH followed by a number is given automatically File name MWTHxxx CSV Name xxx The smallest unused numb...

Страница 98: ...red value fields below shows an example for the single phase two wire method V1 Rms voltage value appearing with V1 on meter screen I1 Rms current value appearing with A1 on meter screen P Active power value appearing with W on meter screen Q Reactive power value appearing with Var on meter screen PF Power factor value appearing with PF on meter screen F Frequency value appearing with Hz on meter ...

Страница 99: ...y with the signal input When the V1 level is less than 10 of the rated voltage the integration cycle is fixed to approximately 125 milliseconds Range of frequency measured 45 to 65 Hz Provision of Lowpass Filter A lowpass filter with the cutoff frequency of 300 Hz is built into the frequency measurement circuit for eliminating noise from the input signal and assuring accurate frequency measurement...

Страница 100: ... zero crossing occurs immediately next after a specified period 100 milliseconds has elapsed is set to the integration cycle and the rms voltage rms current and power are calculated Sampling frequency Approx 10 kHz Integration cycle 120 ms 50 Hz 100 ms 20 ms Frequency measurement input V1 sine wave Zero crossing signal Examples Frequency Hz 50 60 Integration Cycle ms 120 116 67 Number of Waves 6 7...

Страница 101: ...measured and displayed those related to active electric energy are added to the values during instantaneous value measurement During Instantaneous Value Measurement Item Rms voltage Rms current Active power Reactive power Power factor Frequency Unit V A W Var Hz Displayed Name V1 V2 V3 differs depending on the wiring method A1 A2 A3 differs depending on the wiring method W Var PF Hz input frequenc...

Страница 102: ... Set the ranges and wiring method with reference to Chapter 6 Setting Ranges and Wiring Method 5 Set measurement conditions with reference to Chapter 7 Making Settings 6 Call the measurement screen with reference to Chapter 8 Instantaneous Value Measurement 7 Measure the electric energy watt hours NOTE During integration continuous measurement or standby for integration no settings can be modified...

Страница 103: ... the specified time is reached integration begins Remote start by external control signal A signal input from the external control terminals starts integration For details see Section 9 6 External Control Input Output Manual Start Press the key for one second or more Then the mark appears on the screen the LED status indicator immediately above the key lights up and integration starts If data savi...

Страница 104: ...rement Procedure in Section 9 1 Measuring Electric Energy and Section 7 2 8 Setting Integration Start Date and Time If Start Date and Time Are Set to Future Point of Time Later than Current Time Pressing the key flashes the mark on the screen and LED status indicator The file number of the file to which the data is to be saved is displayed for approximately two seconds only if data saving to the P...

Страница 105: ...tatus indicator Flashes during integration standby state START STOP key When the specified time on the specified date has been reached integration begins mark flashes LED flashes mark lights LED lights End of integration Integration start date and time set LED status indicator Integration standby Integration in progress 9 2 Starting and Stopping Integration ...

Страница 106: ...ng that the power meter has entered the integration standby state Display of File Number for Auto saving Integration mode mark Saving to PC card mark File number START STOP LED status indicator Flashes during integration standby state START STOP key Integration will begin at an appropriate time determined from the output interval set mark flashes LED flashes mark lights LED lights End of integrati...

Страница 107: ...ocedures There are three ways to stop integration Manual stop Pressing the key for one second or more stops integration Use this method to abort integration Automatic stop at the specified time on the specified date When the specified time on the specified date set via the setting screen is reached integration stops The stop date and time settings are effective only when integration has begun auto...

Страница 108: ...ssing any key returns to the screen for instantaneous value measurement TIP Set the stop date and time such that the period from the start to the end of integration is not shorter than the output interval Otherwise only the data at the start and end times will be saved Manually starting integration makes the stop date and time settings ineffective You need to stop integration manually in this case...

Страница 109: ...ecified setting actions This section describes the former way For the latter way see Section 7 2 4 Clearing Electric Energy Count and Resetting System Procedure 1 When the measurement screen is displayed press the escape key for three seconds or more Then the mark appears and flashes on the screen ENTER ESC RESET ENTER key ESC escape key Electric Energy Count Clearance Screen 2 Press the key The e...

Страница 110: ...e two wire method is chosen is shown below Even for the unseen data items the respective calculations are performed internally Sequence of Display Contents Switching for Single phase Two Wires Upper Rms voltage Lower Rms current Measurement Screen Measurement Screen or or Measurement Screen Upper Power factor Lower Frequency Measurement Screen Upper Electric energy Lower Elapsed time of integratio...

Страница 111: ...ee wires 3 3W Three phase four wires 3 4W Phase Wires Display Position Upper row Lower row Upper row Lower row Upper row Lower row Name Unit Appearing Next to Each Value V1 V2 V3 Input rms voltages A1 A2 A3 Input rms voltages corresponding to CH1 CH2 and CH3 respectively W Active power with minus sign in case of negative value Var Reactive power with minus sign in case of negative value PF Power f...

Страница 112: ...a saving to PC card Enabled switched on For details of these settings see Chapter 7 Making Settings End of integration Start of integration 1 2 Output interval 3 4 n Data saving NOTE Up to 30 files with automatically given names can be saved to a PC card corresponding to file numbers from 000 to 029 attempting to save too many files causes to appear and the data will be saved to the backup memory ...

Страница 113: ...mmunication File name AWTHxxx CSV Name xxx The smallest unused number from 000 to 029 Filename extension Always CSV If data saving to the PC card is enabled the file number of the file to which data is to be saved will be displayed on the screen when starting integration Display When File Name Is Given Automatically Integration mark Saving to PC card mark File number Display When File Name Is Spec...

Страница 114: ...de 1 indicates electric energy measurement Fields of each data record OUTPUT DATE Date of output OUTPUT TIME Time of output INTEG START DATE Integration start date INTEG START TIME Integration start time ELAPSED TIME Elapsed time of integration The order of measured value fields below shows an example for the single phase two wire method V1 Rms voltage value appearing with V1 on meter screen I1 Rm...

Страница 115: ...an attempt is made to save data to the backup memory more than 3 000 times appears and the saving action is aborted The data in the backup memory is processed as follows When a PC Card Having Sufficient Free Space Is Inserted during Integration When a PC card is inserted the data from that time on is saved to the PC card with the same file name as before Then when integration ends the data stored ...

Страница 116: ...reen 3 Using the keys select make the mark appear 4 Press the key then flashes on the screen 5 Press the key again The data is then copied from the backup memory to the PC card with the same file name The mark will disappear indicating that the copy has finished and data in the backup memory has been cleared 6 Press the key to return to the measurement screen Screen for Copying Data DISP ENTER MEA...

Страница 117: ...Press the key then flashes on the screen 4 Using the keys change to 5 Press the key The data is then cleared from the backup memory 6 Press the key to return to the measurement screen DISP ENTER MEAS SET MEAS SET key UP DOWN LEFT RIGHT keys ENTER key Screen for Clearing Data SEE ALSO Section 7 2 5 Copying and Clearing Backup Memory Contents NOTE Starting the next integration will also clear the da...

Страница 118: ... low level or is closed integration continuous measurement is performed While the external control input signal is at the high level or is open instantaneous value measurement is performed Output While integration continuous measurement is performed the output is at the low level While instantaneous value measurement is performed the output is at the high level The mark is displayed when integrati...

Страница 119: ...nput signal within 30 seconds Input levels Low 0 0 to 0 8 V High 2 0 to 5 0 V Allowable voltage The allowable voltage for the input terminals is 0 5 to 5 5 V 9 6 2 Controlling Multiple CW120s and or CW121s When performing measurement with multiple CW120s and or CW121s you can synchronously start and stop integration in all the CW120s and CW121s by connecting external control terminals Connecting a...

Страница 120: ...ltage exceeding the allowable voltage range 0 5 to 5 5 V to the control signal input terminal The input circuit may be damaged Do not confuse the input terminal with the output terminal Applicable Wires for Signal Wiring Recommended wires Solid AWG 18 wires 1 0 mm diameter or stranded 0 75 mm2 wires Usable wires Solid AWG 26 to AWG 18 0 4 to 1 0 mm diameter wires Stranded AWG 22 to AWG 20 0 3 to 0...

Страница 121: ...f the power is restored after the preset integration start time is displayed and the meter starts integration immediately after the power has been restored Pressing any key returns to the measurement screen Power Restoration Display If Power Failure Has Occurred during Integration If data saving to the PC card is enabled see Section 7 2 10 the active electric energy regenerative energy elapsed tim...

Страница 122: ...01 2001 12 01 INTEG START DATE 2001 12 01 09 15 00 09 18 00 INTEG START TIME 09 00 00 ELAPSED TIME 0 10 00 POWER OFF 2001 12 01 and 09 15 00 indicates that a power failure occurred at 09 15 00 on December 1 2001 POWER ON 2001 12 01 and 09 18 00 indicates that the power was restored at 09 18 00 on December 1 2001 9 7 Meter Actions upon Power Failure and Recovery ...

Страница 123: ...W120 121 complies with the following standards PCMCIA Japan Electronic Industry Development Association JEIDA Slots One Type II slot Card type Flash ATA Format MS DOS PC Card Models Whose Operations Have Been Verified Flash ATA card Supplier SanDisk Corporation Japan Model SDP3B 16 Capacity 16 MB Compact flash card Supplier SanDisk Corporation Japan Model SDCFB 16 SDCFB 32 SDCFB 64 SDCFB 128 Capac...

Страница 124: ...osition Drawn position Depressing the button unlocks the card Pull to remove the card Depressed position Depressing the button changes the position to the popped out position Depress the button again to unlock the card and then pull to remove the card NOTE Removing the PC card during access to it may destroy the saved files and damage the card itself Before removing the card ensure that Continuous...

Страница 125: ...file residing in the card The numbers in parentheses indicate the PC cards capacities Output Interval Guideline of Time Span of Data 1 second Approx 15 hours 1 minute Approx 3 months 16 MB approx 6 months 32 MB at least 1 year 63 MB or larger 30 minutes At least 1 year NOTE To ensure that data can be saved delete all files from the PC card other than measured data files and setting files Be carefu...

Страница 126: ...ng item selection screen 3 Select i e make the mark appear 4 Press the key flashes on the screen 5 Using the keys select Data Deletion Screen Formatting Screen 6 Press the key 7 The mark flashes indicating that access to the PC card is in progress When the mark stops flashing and disappears the formatting has finished 8 To return to the measurement screen press the key SEE ALSO For details of the ...

Страница 127: ... action is referred to as manual saving File name MWTHxxx CSV 000 to 029 Saving Data During Electric Energy Measurement Set the output interval via the setting screen and data will be saved at the output interval thus set This action is referred to as auto saving File name AWTHxxx CSV 000 to 029 NOTE Ensure that data saving to PC card is enabled see Section 7 2 10 if you want to save data during e...

Страница 128: ... WTHxxx SET File number from 000 to 029 SEE ALSO For details of the respective settings see Section 7 2 2 Loading and Saving Settings in Chapter 7 Making Settings Copying Data from Backup Memory When data is saved during electric energy measurement if the PC card becomes full or if the card is removed the measured data is saved to the backup memory This data contained in the backup memory can be c...

Страница 129: ...PC Even when a PC card is left inserted in a CW120 or CW121 the measured data in the PC card can be read from a PC and the setting data can be written from the PC via RS 232 or RS 485 communication Specify which of the interfaces you need when ordering SEE ALSO For details of communication see Chapter 11 Communication Functions and Appendix 2 Commu nication Commands For details of the format of sa...

Страница 130: ......

Страница 131: ... can be chosen Software handshake Transmission reception control by X on and X off signals is possible Reception buffer length 1024 bytes NOTE The handshaking settings cannot be changed from the CW120 121 Modify the handshaking settings in a setting file and load the file to the CW120 121 RS 232 Interface Connections When connecting a CW120 or CW121 to a computer or printer via its RS 232 interfac...

Страница 132: ...Ground Signal ground Directions of Individual Signals The figure below shows the directions of the individual signals used in the RS 232 interface 2 3 8 7 RTS Request To Send CTS Clear To Send TXD Transmit Data RXD Receive Data Computer CW120 121 Correspondences of Signal Abbreviations between RS 232 Standard CCITT Standard and JIS Japanese Industrial Standard 5 3 2 7 8 Signal Ground Transmit Data...

Страница 133: ... Control of Data Transmission to Computer Reception Control Control of Data Reception to Computer Sends X off When Data in Reception Buffer Has Reached 3 Quarters of the Capacity Sends X on When Data in Reception Buffer Has Decreased to a Quarter of the Capacity Resets CA RTS to False When Data in Reception Buffer Has Reached 3 Quarters of the Capacity Sets CA RTS to True When Data in Reception Bu...

Страница 134: ...0 121 quits the transmission Then when it receives the X on code next it restarts the transmission The CW120 121 ignores CTS CS in JIS from the computer Reception Control A software handshake is performed between the CW120 121 and computer When the free space in the reception buffer decreases to 256 bytes the CW120 121 resets RTS RS in JIS to false When the free space in the reception buffer incre...

Страница 135: ...tes Used 256 bytes unused When performing a handshake if the free space in the buffer has decreased to 256 bytes because the internal data transfer is too slow the reception stops Used 768 bytes unused After the status above when data was transfer internally and the free space in the buffer has increased to 768 bytes the reception restarts Used After the buffer has become full regardless of whethe...

Страница 136: ... Asynchronous Baud rate 1200 2400 4800 9600 19200 bps Start bits Fixed to 1 bit Data bits 7 or 8 bits Parity Odd even or none Stop bits 1 or 2 bits Connector 4 screw terminals M3 Hardware handshake Not available Software handshake Not available Error detection 2 byte simple summation checksum Reception buffer length 1024 bytes Maximum transmission distance 1 2 km when using shielded cable containi...

Страница 137: ...the PC you need an RS 232 RS 485 converter RS 232 RS 485 converter CW120 121 CW120 121 CW120 121 PC RS 232 Terminating resistor On Example Yokogawa M C ML1 converter Terminating resistor On Communication cable Communication cable Pair Up to 31 meters SD send data RD receive data SD send data RD receive data TM Terminating resistor short circuiting with the terminal switches on the terminating resi...

Страница 138: ...ess SEE ALSO For device address setting see Section 7 2 1 Setting Device Number in Chapter 7 Making Settings NOTE The device number must be unique within the same system for correct communication Cable Used Use shielded cables containing 2 twisted pairs of AWG 24 conductors WARNING Turn off the power when performing wiring for the terminals to avoid electric shock 11 2 RS 485 ...

Страница 139: ...ch character is carried in such a way that 7 or 8 data bits are preceded by a start bit and followed by a parity bit optional and 1 or 2 stop bits in order see also the figure below Data bits 7 or 8 bits 1 character Stop bit s 1 1 or 2 2 Parity bit Odd even or none Start bit Idle state of line Puts the line back to idle state dashed line or sends start bit solid line ...

Страница 140: ......

Страница 141: ...o change the date and time use the setting screen SEE ALSO For clock adjustment see Section 7 2 6 Changing Date and Time in Chapter 7 Making Settings Backlight for LCD You can turn on and off the backlight for the LCD by pressing the key When no key actions have been performed for 10 minutes or longer the backlight is turned off automatically Key Lock Pressing the key for three seconds or more loc...

Страница 142: ...he date time and device number Procedure Hold down the and keys and turn on the power switch Keep pressing the and keys until the model number appears on the screen Meter Actions All LCD segments light up and then the model number and version appear Upper Model number Lower Version number ESC key START STOP key Model and Version Display Screen ESC START STOP Power switch ALL CLEAr appears on the s...

Страница 143: ...eiko Instruments DPU 414 printer Specifications Printing method Thermal serial dot printing Number of columns to print 80 Character presentation 9x7 dots Print speed 52 5 mm s Paper width 112 mm Connection Use the RS 232 port Printer cable Model 91010 1 Turn off the power to the printer The power lamp turns off 2 Connect the printer to the CW120 121 as shown in the figure below Printer Serial port...

Страница 144: ...igh Low 3 ON Auto loading Enable Disable 4 OFF CR or CR LF CR LF CR 5 ON Setting command Enable Disable 6 OFF 7 ON Printing density 100 8 ON DIP SW 2 Setting Item ON OFF 1 OFF Print mode 40 columns 80 columns 2 ON Backup of user defined characters Enable Disable 3 ON Character type Normal Special 4 ON Character of zero 0 5 ON 6 ON Encoding character set Japanese 7 ON 8 ON DIP SW 3 Setting Item ON ...

Страница 145: ...etting needs to be made also in the CW120 121 Procedure With reference to Section 7 2 11 Selecting Communication Device in Chapter 7 Making Settings select a printer as the communication device Either a printer or personal computer can be connected via the RS 232 interface select a printer when connecting to a printer Selecting a Printer Selecting a Personal Computer ENTER ESC MEAS SET DISP MEAS S...

Страница 146: ...0 KWh Wh 0 00 KWh Time of output Integration start time Elapsed time of integration P Active power Q Reactive powery PF Power factor F Frequency Instantaneous values Electric energies SEE ALSO For print data see Appendix 3 File Structures and Data Items Printed TIP The printout above is an example when the print mode is set to 40 columns ON in DIP SW 2 See the DIP switch settings described on the ...

Страница 147: ... vendor from which you purchased the instrument If any one of the following error codes appears during the self test after a power on the backup battery may have run flat Users are not authorized to replace the backup battery by themselves Contact the vendor from which you purchased the instrument The life of the backup battery is about 10 years May be affected by noise Check the installation envi...

Страница 148: ...ceeded A PC card other than a flash ATA card is inserted PC card not yet formatted A PC card not supported is inserted Failure in deleting a measured value file Failure in saving the setting file Failure in loading the setting file PC card related error other than above Data in internal memory exceeds the capacity Failure in saving measured data within output interval The electric energy value or ...

Страница 149: ... probe 20 50 100 200 A 96031 clamp on probe 50 100 200 500 A 96032 clamp on probe 200 500 1000 A 96033 clamp on probe 130 Arms 96030 clamp on probe 250 Arms 96031 clamp on probe 625 Arms 96032 clamp on probe 1000 Arms 2 Measurement Functions Item Voltage Current Active Power Method Frequency range Crest factor Effective input range Display range Temperature coefficient Display update period Digita...

Страница 150: ... from measurement 1 dgt Power factor effects 1 0 rng cosφ 0 5 relative to power factor 1 with probe 96030 2 0 rng cosφ 0 5 relative to power factor 1 with probe 96031 96032 or 96033 Reactive factor effects 1 0 rng sinφ 0 5 relative to reactive factor 1 with probe 96030 2 0 rng sinφ 0 5 relative to reactive factor 1 with probe 96031 96032 or 96033 4 Equations Rms voltage Vrms T 1 v t 2 T t 0 T 1 v ...

Страница 151: ...ced wave inputs there may be discrepancies between the CW120 121 and other instruments that operate based on different measurement principles Note 2 The plus minus sign is displayed by multiplying the polarity obtained based on the varmeter method Reactive Power Note 1 Power Factor Note 2 Apparent Power 5 Electric Energy Measurement Measured parameters Active electric energy regenerative electric ...

Страница 152: ...00 0A 15 00 kW 30 00 kW 30 00 kW 45 00 kW 30 00 kW 60 00 kW 60 00 kW 90 00 kW 45 00 kW 90 00 kW 90 00 kW 135 0 kW 200 0A 30 00 kW 60 00 kW 60 00 kW 90 00 kW 60 00 kW 120 0 kW 120 0 kW 180 0 kW 90 00 kW 180 0 kW 180 0 kW 270 0 kW 500 0A 75 00 kW 150 0 kW 150 0 kW 225 0 kW 150 0 kW 300 0 kW 300 0 kW 450 0 kW 225 0 kW 450 0 kW 450 0 kW 675 0 kW 1 000kA 150 0 kW 300 0 kW 300 0 kW 450 0 kW 300 0 kW 600...

Страница 153: ...erminals short circuited and current communication external control input output terminals short circuited between power line and casing and between power line and current communication external control input output terminals short circuited Withstanding voltage 5550 V AC for 1 minute between voltage input terminals short circuited and casing 3250 V AC for 1 minute between voltage input terminals ...

Страница 154: ...EN61010 1 EN61010 2 031 Voltage input line Overvoltage category III Max input voltage 600 Vrms Power line Overvoltage category II Max input voltage 264 Vrms Pollution degree 2 EMC emission Compliant with EN55011 Group 1 Class A EN61326 EN61000 3 2 EN61000 3 3 The user must implement adequate measures to prevent influences from radio noise emission if necessary Conditions of cable Measured input Wh...

Страница 155: ...14 7 IM CW120 E Specifications 14 14 CW120 121 Exterior Note This figure shows the CW121 but there is no difference in exterior from the CW120 117 4 6 51 2 0 Unit mm approx inches 161 6 3 ...

Страница 156: ... 0 1 A equivalent or less at 400 A m 50 60 Hz 0 5 at 20 to 200 A 45 Hz to 1 kHz 600 Vrms AC maximum 3 7 kVrms AC for 1 minute core to casing and core to output 30 mm diameter maximum 5 to 40 C 35 to 80 RH no condensation 20 to 60 C 90 RH or less no condensation Indoors altitude of 2000 m or lower Approximately 73 130 30 mm Approximately 300 g Banana plugs safety terminals Approximately 3 meters On...

Страница 157: ...with EN61326 1997 Effect on measurement input under immunity environment 20 of range or less Dimensions of 96030 and 96031 Clamp on Current Probes 73 2 9 57 2 2 60 2 4 30 1 2 86 3 4 130 5 1 Unit mm approx inches 14 2 Specifications of Clamp on Current Probes ...

Страница 158: ...ity at 35 to 75 RH with sine wave input 0 05 of full scale C in ranges of 5 C to 40 C 1000 Arms AC for 5 minutes 700 Arms AC continuous 45 Hz to 66 kHz Approximately 100 Ω maximum 0 5 A equivalent or less at 400 A m 50 60 Hz 0 5 at 200 to 1000 A 45 Hz to 66 kHz 600 Vrms AC maximum 2 2 kVrms AC for 1 minute core to casing and core to output 65 mm diameter maximum 65 75 mm busbar maximum 5 to 40 C 3...

Страница 159: ...ull scale C in ranges of 0 C to 50 C 130 Arms AC 45 Hz to 1 kHz Approximately 18 Ω 0 1 A equivalent or less at 400 A m 50 60 Hz 0 5 at 1 to 50 A 45 Hz to 1 kHz 300 Vrms AC maximum 3 7 kVrms AC for 1 minute core to casing and core to output 18 mm diameter maximum 0 to 50 C 5 to 85 RH no condensation 20 to 60 C 90 RH or less no condensation Indoors altitude of 2000 m or lower Approximately 52 106 25...

Страница 160: ...14 12 IM CW120 E Dimensions of 96033 Clamp on Current Probe Unit mm approx inches 25 0 99 10 5 0 41 40 1 6 106 4 17 14 2 Specifications of Clamp on Current Probes ...

Страница 161: ...er LPF PC LCD Driver Printer External Signal Multiplexer Voltage Input Block Isolated Current Input Block DC DC Backup SRAM PC Card Controller PC Card V2 N V3 AC DC Power Supply Block A3 Vref RS 232 Multidrop Connection Not provided for model with RS 485 interface Vcc Vref Segmented LCD Only for CW121 Only for CW121 100 240 V AC Zero cross Detector Input Switching Signal Generator Clock Signal Gen...

Страница 162: ......

Страница 163: ...RS 485 App 2 8 1 6 Communication Commands App 2 9 1 7 Detailed Description of Communication Commands App 2 12 1 7 1 COMMunicate Group App 2 12 1 7 2 SYSTem Group App 2 13 1 7 3 INTEgrate Group App 2 15 1 7 4 MEASure Group App 2 17 1 7 5 STATus Group App 2 17 1 7 6 MEMOry Group App 2 18 1 7 7 CARD Group App 2 18 1 7 8 Common Group App 2 19 2 Error Messages App 2 20 3 Command Effectiveness Tables Ap...

Страница 164: ...minator used to terminate each program message For the CW120 the terminator is a string of CR ASCII code 0DH and LF ASCII code 0AH characters Format of Program Message Unit The format of a program message unit is shown below Program header space program data Program header The program header contains the command type Program data If there are certain conditions for executing a command they are app...

Страница 165: ...eceived If you send the next program message before any response message is received or after only part of a message is received an error will occur The response message that was not received at all or completely will be discarded If the personal computer tries to receive a response message when there is none an error will occur An error also occurs if the personal computer tries to receive a resp...

Страница 166: ... contain sub groups Example Command group relating to electric energy measurement INTEgrate INTEgrate STARt TIME INTEgrate STOP TIME INTEgrate STORe When Concatenating Commands of the Same Group The CW120 stores information on which hierarchical level the command currently being executed belongs to and performs analysis on the assumption that the next command will also belong to the same level The...

Страница 167: ...ST If the x numeric value at the end of the header is omitted it is assumed to be 1 Example If CHANnel x is written as CHAN this represents CHAN1 1 3 Response Upon receiving a query from the personal computer the CW120 returns a response message to the computer A response message is sent in either of the following forms Response consisting of a header and data If the response can be used directly ...

Страница 168: ...sage is predetermined for each query The same form is used irrespective of whether the value is large or small When using NR3 the after the E can be omitted but the cannot If a value outside the setting range is specified the closest valid value will be used If the value specified is beyond the precision of the CW120 the value will be rounded Voltage Time Frequency Voltage Time and Frequency indic...

Страница 169: ...tring unlike the character data which uses only specific characters The character string must be enclosed in single quotation marks or double quotation marks Form Example Character string data ABC IEE488 2 1987 If a character string contains a double quotation mark use two double quotation marks to indicate it This rule also applies to a single quotation mark within a character string Response mes...

Страница 170: ... message If a received program message does not contain a query command the CW120 or CW121 returns OK or ERROR as a response message Also in response to a syntax error in a program message the CW120 returns ERROR Program Messages to CW120 121 and Response from CW120 121 STX device address program message checksum ETX CR Range of data to calculate checksum STX device address response message checks...

Страница 171: ...Tem VOLTage Queries all the settings relating to the voltage range SYSTem VOLTage RANGe Sets queries the voltage range SYSTem WIRIng Sets queries the wiring INTEGrate Group INTEgrate Queries all the settings relating to electric energy measurement INTEgrate CLEAr Clears integrated values to zero INTEgrate DISPlay Queries all the settings relating to measurement screen INTEgrate DISPlay MODE Sets q...

Страница 172: ...s the MEASure INTEgrate ITEM query STATus Group STATus Queries all the settings relating to the status of the communication function STATus ERRor Queries the error code and message head of the error queue STATus OMESsage Queries whether or not to add to the message contents to the STATus ERRor response MEMOry Group MEMOry Queries all the settings relating to the internal memory MEMOry DATA Queries...

Страница 173: ...t was specified using the CARD FILEname and CARD TYPE commands CARD SETTing Creates a setting file in the PC card and saves the current settings to it CARD STATe Queries the PC card status CARD TYPE Sets queries which type of files in the PC card is to be accessed Common Command Group CLS Clears the error queue IDN Queries the meter model Appendix 2 Communication Commands ...

Страница 174: ...first in first out basis If the error queue overflows the last message is replaced with message 350 Queue overflow The error queue is emptied in either of the following cases in addition to a case when it is entirely read out The CLS command is received The power is turned on again 1 7 Detailed Description of Communication Commands 1 7 1 COMMunicate Group The commands in the COMMunicate group are ...

Страница 175: ...ntax SYSTem CLAMp SYSTem CLAMp NRf NRf 0 5 to 50 A 1 20 to 200 A 2 50 to 500 A 3 200 to 1000 A SYSTem CURRent Function Queries all the settings relating to the current range Syntax SYSTem CURRent SYSTem CURRent RANGe Function Sets queries the current range Syntax SYSTem CURRent RANGe SYSTem CURRent RANGe NRf NRf 0 5 A 1 10 A 2 20 A 3 50 A 4 100 A 5 200 A 6 500 A 7 1000 A SYSTem DATE Function Sets ...

Страница 176: ... VT SYSTem SCALing VT NRf NRf 1 to 10000 SYSTem TIME Function Sets queries the clock Syntax SYSTem TIME SYSTem TIME NRf1 NRf2 NRf3 NRf1 hour 0 to 23 NRf2 minute 0 to 59 NRf3 second 0 to 59 SYSTem VOLTage Function Queries all the settings relating to the voltage range Syntax SYSTem VOLTage SYSTem VOLTage RANGe Function Sets queries the voltage range Syntax SYSTem VOLTage RANGe SYSTem VOLTage RANGe ...

Страница 177: ... STARt Function Queries all the settings relating to the start of measurement Syntax INTEgrate STARt INTEgrate STARt EXECute Function Starts measurement Syntax INTEgrate STARt EXECute INTEgrate STARt METHod Function Sets queries the method for starting measurement Syntax INTEgrate STARt METHod INTEgrate STARt METHod NRf NRf 0 Time 1 Manual INTEgrate STARt TIME Function Sets queries the starting ti...

Страница 178: ... be saved Syntax INTEgrate STORe FILE INTEgrate STORe FILE Filename Filename Up to 8 characters INTEgrate STORe INTErval Function Sets queries the output time interval Syntax INTEgrate STORe INTErval INTEgrate STORe INTErval NRf1 NRf2 NRf1 Hour 0 to 1000 NRf2 Minute 0 to 59 NRf3 Second 0 to 59 Remarks The valid setting is 1 2 5 10 15 30 seconds or 1 2 5 10 15 30 minutes or 1 hour INTEgrate WH Func...

Страница 179: ...tive data items of communication output data on electric energy measurement to ON Syntax MEASure INTEgrate ITEM ALL MEASure INTEgrate ITEM CLEAr Function Resets all effective data items of communication output data on electric energy measurement to OFF Syntax MEASure INTEgrate ITEM CLEAr MEASure INTEgrate ITEM VALUe Function Queries the measured values of the data items that were set to ON using t...

Страница 180: ...nd Syntax CARD DIREctory CARD FILEname Function Sets queries the names of all files that reside in the PC card Syntax CARD FILEname CARD FILEname Filename Measured data items Up to 8 characters CARD FORMat Function Formats the PC card Syntax CARD FORMat CARD PICKout Function Queries all the settings relating to transfer of a specified range of file contents Syntax CARD PICKout CARD PICKout END Fun...

Страница 181: ...TTing NRf NRf 0 to 29 file number CARD STATe Function Queries the PC card status Syntax CARD STATe CARD STATe NRf NRf 0 A card is not set 1 A card is set CARD TYPE Function Sets queries which type of files in the PC card is to be accessed Syntax CARD TYPE CARD TYPE NRf NRf 1 Auto storing file 3 File containing currently measured values 4 Setting file 1 7 8 Common Group CLS ClearStatus Function Cle...

Страница 182: ...nly errors messages relating to communication These messages are divided into the following groups by the error code Command syntax errors Codes 100 to 199 Communication execution errors Codes 200 to 299 Query errors Codes 400 to 499 Command execution errors Codes 600 to 799 System error Code 912 ...

Страница 183: ...ta parameters from each other Code the parameter in the correct data type Too many parameters are set Check the number of parameters Code all the necessary parameters Separate the header from data by a space Check the mnemonic an alphabetical letter followed by a number Check the header Check the header No mantissa is set in a numeric data An NRf format parameter requires a numeric value Reduce th...

Страница 184: ...setting with other related settings Check the setting range Check the byte length of the parameter Check the setting range Check the options equipped Query Errors Codes 400 to 499 410 420 430 440 Query INTERRUPTED Query UNTERMINATED Query DEADLOCKED Query UNTRMINATED after indefinite response Code Message Countermeasure Check the transmission reception sequence Check the transmission reception seq...

Страница 185: ...ed during access or the card is damaged Insert a card that is not damaged The number of files that can be created in the card has exceeded the limit Delete unnecessary files or use a different card The inserted PC card is not a flash ATA memory card Insert a flash ATA memory card The inserted PC card has not yet been formatted in MS DOS format Format it with the power meter A PC card not supported...

Страница 186: ...ion Commands IM CW120 E 3 Command Effectiveness Tables 1 COMMunicate Group COMMunicate HEADer HEADer STATus VERBose VERBose Status Command Effective Blank Ineffective Integration in Progress Integration Stopped Wiring Check Setting ...

Страница 187: ...RRent CURRent RANGe RANGe DATE DATE DISPlay KLOCk KLOCk RESEt SCALing SCALing CT CT VT VT TIME TIME VOLTage VOLTage RANGe RANGe WIRIng WIRIng Status Command Integration in Progress Integration Stopped Wiring Check Setting Effective Blank Ineffective Cond Conditional setting is not allowed during integration Cond Cond Cond Cond Cond Cond ...

Страница 188: ...ration in Progress Integration Stopped Wiring Check Setting INTEgrate CLEAr DISPlay DISPlay MODE MODE STARt STARt EXECute METHod METHod TIME TIME STATe STOP STOP EXECute TIME TIME STORe STORe STATe STATe FILEname FILEname INTErval INTErval WH WH DIGI DIGI UNIT UNIT Effective Blank Ineffective ...

Страница 189: ...fective Blank Ineffective MEASure INTEGrate INTEGrate ITEM ITEM ALL CLEAr VALUe 5 STATus Group STATus STATus ERRor OMESsage OMESsage Status Command Integration in Progress Integration Stopped Wiring Check Setting Effective Blank Ineffective 6 MEMOry Group MEMOry DATA SEND Status Command Effective Blank Ineffective Integration in Progress Integration Stopped Wiring Check Setting ...

Страница 190: ... PICKout PICKout END END SEND STARt STARt SEND SETT STATe TYPE TYPE Status Command Integration in Progress Integration Stopped Wiring Check Setting Effective Blank Ineffective 8 Common Command Group CLS IDN Status Command Effective Blank Ineffective Integration in Progress Integration Stopped Wiring Check Setting ...

Страница 191: ...3 3 2 1 1 File Identifier App 3 3 2 1 2 File Type App 3 3 2 1 3 Measurement Mode App 3 3 2 1 4 Data Field Titles and Data Formats App 3 4 2 1 5 Records of Power Failure Restoration Information App 3 4 2 2 Print Format App 3 5 2 2 1 Print Item Titles and Data Formats App 3 5 3 Settings App 3 6 3 1 File Format App 3 6 3 2 Output Format and Data Values App 3 7 3 3 Print Format App 3 9 4 Automatic Fil...

Страница 192: ...ata is saved by a user action during instantaneous value measurement or automatically during electric energy measurement 1 Measured Data Manual saving Pressing the SAVE key outputs the measured data to a file Automatic saving Measured data is output to a file periodically at a specified interval after measurement begins 2 Settings The current settings of measurement conditions are output to a file...

Страница 193: ...PUT DATE OUTPUT TIME data title Wh Title of measured data items data field titles yyyy mm dd hh mm ss measured value x xxxxxE xx Measured value record 1 yyyy mm dd hh mm ss measured value x xxxxxE xx Measured value record 2 2 1 1 File Identifier Characters for identifying that the file was created by a CW120 or CW121 are output File identifier CW12x 2 1 2 File Type The file type identification cod...

Страница 194: ...Electric energy Wh Regenerative energy Wh No Title Data Format Output Availability Depending on Wiring Method 1 2W 1 3W 3 3W 3 4W Note An invalid or overflowed value is output as or OR 2 1 5 Records of Power Failure Restoration Information After a power failure during automatic saving was in progress the times when the power failure and restoration occurred are output as power failure restoration ...

Страница 195: ...5 Integration start time Elapsed time V1 V2 V3 I1 I2 I3 P Q PF F Wh Wh yyyy mm dd hh mm ss yyyy mm dd hh mm ss hhhhh mm ss 0 000E 00 0 000E 00 0 000E 00 0 000E 00 0 000E 00 0 000E 00 0 000E 00 0 000E 00 0 000E 00 0 000E 00 0 00000E 00 0 00000E 00 Output date and time Integration start date and time Elapsed time of integration Voltage 1 V Voltage 2 V Voltage 3 V Current 1 A Current 2 A Current 3 A ...

Страница 196: ... files In the same way as in measured data files the contents of each setting file begin with the file identifier file type number and measurement mode CW12x FileType 3 MeasureMode 1 Wiring x SetVRange x MeasVRange x Vt x Ct x ClampType x No x Device x BaudRate x DataLength x Parity x StopBit x Handshaking x x Setting ...

Страница 197: ...y Display unit of electric energy 0 to 3 1 to 4 1 to 4 1 to 8 1 to 8 0 or 1 xxxxxxxx yyyy mm dd hh mm ss yyyy mm dd hh mm ss hhhh mm ss 0 to 4 0 to 3 0 Single phase two wires 1 Single phase three wires 2 Three phase three wires two currents 3 Three phase four wires 1 150 V 2 300 V 3 450 V 1 150 V 2 300 V 3 450 V 1 5 A 2 10 A 3 20 A 4 50 A 5 100 A 6 200 A 7 500 A 8 1000 A 1 5 A 2 10 A 3 20 A 4 50 A...

Страница 198: ...d device Baud rate Data bits Parity Stop bits Flow control 1 to 10000 1 00 to 10000 00 1 to 999 0 to 3 0 or 1 0 to 4 7 or 8 0 to 2 1 or 2 0 to 3 0 50 A probe 1 200 A probe 2 500 A probe 3 1000 A probe 0 Printer 1 PC 0 1200 bps 1 2400 bps 2 4800 bps 3 9600 bps 4 19200 bps 7 or 8 bits 0 None 1 Even 2 Odd 1 or 2 bits 0 ON OFF 1 XON XOFF 2 XON RS 3 CS RS Item Title Description Setting Meaning of Setti...

Страница 199: ...pp Appendix 3 File Structures and Data Items Printed 3 3 Print Format The print format is as shown below yyyy mm dd hh mm ss Wiring x SetVRange x MeasVRange x Vt x Ct x ClampType x No x Device x BaudRate x DataLength x Parity x StopBit x Handshaking x x Setting ...

Страница 200: ...e file name is not specified though users can specify the name only for automatic saving the power meter automatically names the file as follows Automatic saving AWTHxxx CSV Manual saving of instantaneous values MWTHxxx CSV Setting file WTHxxx SET where xxx is the smallest unused number from 000 to 029 ...

Страница 201: ... 4 9 6 9 12 9 15 10 5 10 6 Date 1 3 2 8 2 9 4 5 7 1 7 9 7 11 8 6 9 14 9 21 12 1 12 2 App2 4 App2 5 Decimal point position 6 3 6 4 7 1 7 28 7 29 7 30 7 31 Device address 7 4 11 8 App2 8 Device number 2 8 7 1 7 2 7 3 7 4 7 9 11 8 12 2 App2 8 Dimensions 2 1 14 5 14 8 14 9 14 10 14 11 14 12 Display digits 6 1 6 3 6 4 14 3 14 4 App2 7 App2 10 App2 16 E Electric energy Clearing 1 3 2 5 7 9 9 9 Electric ...

Страница 202: ... 7 13 2 14 4 Index App1 1 App2 10 App2 11 App2 18 App2 19 App2 23 Enabling Disabling data saving 7 18 Formatting 1 3 2 8 7 8 10 4 Personal computer 1 1 7 19 10 7 11 7 12 5 App2 8 Power failure and recovery Actions upon 9 21 Power supply 2 2 3 3 3 5 4 1 4 2 4 3 4 6 13 1 14 5 App1 1 Printer 1 3 2 2 2 8 7 7 7 19 8 5 11 1 12 3 12 4 12 5 App1 1 App2 2 App2 8 R Ranges 1 1 6 1 6 8 7 26 8 1 9 2 13 1 14 1 ...

Страница 203: ...3 Voltage range 1 1 2 5 2 8 4 1 4 6 6 1 6 6 6 7 6 9 6 10 7 23 7 25 9 20 14 4 App2 7 Voltage transformer 2 6 5 1 5 4 7 22 VT 1 3 2 6 2 8 5 1 5 4 6 2 6 3 6 6 6 7 6 9 6 10 7 1 7 22 7 23 7 25 7 28 13 2 14 4 App2 8 W Wiring 1 1 1 2 2 5 4 6 5 1 5 4 5 6 5 7 5 8 5 9 6 11 8 1 9 2 9 20 11 7 11 8 14 4 App2 7 App2 13 App2 24 App2 25 App2 26 App2 27 App2 28 Check Function 5 6 Diagrams 5 2 Method 1 3 1 4 2 5 2 ...

Страница 204: ......

Страница 205: ...10 YOKOGAWA AMERICA DO SUL S A BRAZIL Phone 55 11 5681 2400 Facsimile 55 11 5681 1274 YOKOGAWA ENGINEERING ASIA PTE LTD SINGAPORE Phone 65 6241 9933 Facsimile 65 6241 2606 YOKOGAWA MEASURING INSTRUMENTS KOREA CORPORATION KOREA Phone 82 2 551 0660 to 0664 Facsimile 82 2 551 0665 YOKOGAWA AUSTRALIA PTY LTD AUSTRALIA Phone 61 2 9805 0699 Facsimile 61 2 9888 1844 YOKOGAWA BLUE STAR LTD INDIA Phone 91 ...

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