Kikusui PLZ164WL User Manual Download

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PLZ-4WL

Specifications

Soft start

Response

Remote sensing

Protection function

Model

PLZ164WL

PLZ334WL

Operation mode

Selectable times

The time it takes to shift from 10 % to 90 % of the rated current

OFF, 100 µs, 200 µs, 500 µs,

1 ms, 2 ms, 5 ms, 10 ms, or 20 ms

Time accuracy

±(30 % of set +10 µs)

Model

PLZ164WL

PLZ334WL

Response speed

Can be set in CV mode and CR mode

NORMAL, FAST

Model

PLZ164WL

PLZ334WL

Voltage that can be compensated

3 V for a single line

Model

PLZ164WL

PLZ334WL

Overvoltage protection (OVP) Turns off the load at 115 % of the rated voltage

Overcurrent protection (OCP)

Can be set to a value from 10 % to 110 % of the rated current

The action can be set to load off or limit.

Overpower protection (OPP)

Can be set to a value from 10 % to 110 % of the rated power

The action can be set to load off or limit.

Overheat protection (OHP)

Turns off the load when the heat sink temperature reaches 90



Undervoltage protection
(UVP)

Turns off the load when the specified value is detected

Can be set to a value from 0.3 V to 30 V

Reverse-connection
protection (REV)

Implemented through a fuse
Turns off the load when an alarm occurs

Summary of Contents for PLZ164WL

Page 1: ...5 6 7 PART NO IB021036 Oct 2015 PLZ164WL PLZ334WL Installation and Preparation Basic Functions Advanced Operations Sequences External Control Maintenance User s Manual PLZ 4WL Series Electronic Load Specifications ...

Page 2: ...M Adobe Reader 9 2 or later is required to view the PDF files Microsoft Internet Explorer 9 or later is required to view the HTML files If you find any incorrectly arranged or missing pages in the manual they will be replaced If the manual gets lost or soiled a new copy can be provided for a fee In either case please contact Kikusui distributor agent and provide the Kikusui Part No given on the co...

Page 3: ...ty of other features High speed slew rate of 50 A µs PLZ334WL The rise and fall slew rate of the current when the PLZ 4WL switches at 2 to 100 20 to 100 in M range of the rated current in constant current mode is 50 A µs PLZ334WL which corresponds to fast rise and fall times of 1 6 µs for all types This allows you to conduct accurate transient response tests of DC power supplies and to accurately ...

Page 4: ...ic Operation Modes The following six operation modes are available on the PLZ 4WL 1 Constant current mode CC mode 2 Constant resistance mode CR mode 3 Constant power mode CP mode 4 Constant voltage mode CV mode 5 Constant current and constant voltage mode CC CV mode 6 Constant resistance and constant voltage mode CR CV mode Here we will explain the simplest of the six modes constant current CC mod...

Page 5: ...vel 36 Setting the switching interval 37 Turning the switching function on and off 37 Slew Rate 38 Setting procedure 38 Soft Start 39 Short 40 Turning the short function on and off 40 Locking the Keys 41 Switching from Remote Mode to Local Mode 42 3 Advanced Operations Memory Types 44 ABC Preset Memory 45 Saving settings to ABC preset memory 45 Recalling ABC preset memory entries 46 Setup Memory 4...

Page 6: ...eparation 99 CC Mode Calibration Calibration numbers 1 2 and 3 100 CV Mode Calibration Calibration numbers 4 and 5 102 Ending Calibration 104 Troubleshooting 105 7 Specifications Ratings 108 Constant current CC mode 108 Constant resistance CR mode 109 Constant voltage CV mode 109 Constant CP power mode 110 Measurements 110 Switching mode 111 Slew rate 111 Soft start 112 Response 112 Remote sensing...

Page 7: ...onfiguring CC CV mode p 31 How do I set the protection functions to prevent damage to the DUT Protection Functions p 49 How do I use remote sensing to stabilize the PLZ 4WL Remote Sensing p 24 How do I check the menu contents Menu p 54 How do I reset the PLZ 4WL to its factory default settings Factory Default Settings Initialization p 56 How do I operate the PLZ 4WL at a specified current How do I...

Page 8: ...nnecting remote sensing wires p 24 6 DC INPUT The load input terminals for connecting the DUT and the PLZ 4WL p 17 7 Chassis terminal A terminal connected to the chassis p 17 8 Air inlet An air inlet for cooling It has a dust filter 9 Handle A handle for carrying the PLZ 4WL 10 Rotary knob Used to make selections and change settings p 26 1 2 3 4 5 6 7 8 9 17 16 15 10 11 12 13 14 19 18 20 21 22 26 ...

Page 9: ...nductance voltage or power MENU key Displays the menu setup screen p 54 25 RANGE key Switches between the appropriate ranges current conductance voltage or power for the current operation mode V RANGE key Switches between voltage ranges 26 SLEW RATE key Used to set the slew rate p 38 SHORT key Turns the short function on and off p 40 27 OPP OCP key Used to set the power at which overpower protecti...

Page 10: ...inlet p 14 3 USB USB port for controlling the PLZ 4WL remotely 4 RS232C RS232C port for controlling the PLZ 4WL remotely 5 GPIB GPIB cable connector for controlling the PLZ 4WL remotely 6 J1 connector External control connector p 80 7 Serial number The serial number of the PLZ 4WL 1 3 2 4 6 5 7 See ...

Page 11: ...Installation and Preparation This chapter describes how to unpack and prepare this product before you use it 1 ...

Page 12: ...ted at a later date Accessories Load input terminal cover 1 pc Load input terminal screw set 2 pc Power code 1 pc M1 100 012 M5 101 007 M4 100 007 Load input terminal cover screws 2 pc M3 112 018 Q1 500 122 Chassis connection wire 1 pc 91 80 6940 Setup Guide 1 pc Quick Reference Japanese 1sheet English 1sheet CD ROM 1 pc Plug NEMA5 15 Rating 125Vac 10A 85 AA 0003 Plug CEE7 7 Rating 250Vac 10A 85 A...

Page 13: ...he unit is disassembled from the rack adapter it is recommended that all the removed parts are kept in the storage Once the unit is disassembled from the rack adapter please attach all the removed parts to original location of each part Removing the handle and feet 1 Pull up on the handle cover two locations 2 Unfasten the M4 flat head screws two locations and remove the entire handle 3 While pull...

Page 14: ...ipment equipment with a protective conductor terminal Be sure to earth ground the product to prevent electric shock Connect the protective conductor terminal to earth ground Use the supplied power cord to connect to an AC power line If the supplied power cord cannot be used because the rated voltage or the plug shape is incompatible have a qualified engineer replace it with an appropriate power co...

Page 15: ...dition The measured value displayed section with mA V and W unit indicates coarse zero The characters SET shown under the measured value is highlighted with an underline You can enter the fundamental setting for the selected operation mode 6 Push LOAD Check that the LED above the key illuminates 7 Push LOAD again Check that the LED above the key turns off If an odd sound odd odor fire or smoke occ...

Page 16: ...ed off immediately after the settings have been changed the last settings may not be stored Nothing is displayed Make sure that the power cord is connected properly and then turn the POWER switch on again Adjusts the contrast of the display p 26 Abnormal current or voltage values are being displayed Turn the PLZ 4WL POWER switch off and then on again An alarm has occurred A protection function has...

Page 17: ... that have a low heat resistance are used when the ambient temperature is 30 C or greater or when wires are bundled together and little heat is radiated WARNING Improper use of load wires may lead to fire Use load wires whose capacity is adequate for the PLZ 4WL s rated output current Possible electric shock Use load wires whose rated voltage meets or exceeds the PLZ 4WL s isolation voltage For de...

Page 18: ...A µs will generate a voltage of 50 V The negative load input terminal provides the reference potential for the external control signal The generated voltage may cause the device connected to the external control signal to malfunction When the electronic load is in constant voltage constant resistance or constant power mode it uses the voltage at the load input terminals to change the load current ...

Page 19: ...ring as short as possible and twist it If you only need to use DC operation connecting a capacitor and a resistor to the load input terminals can reduce oscillation Do not exceed the capacitor s ripple current rating Optimizing the response speed You can change the response speed in CV mode and CR mode The wiring inductance can cause the current to lag the voltage This can result in unstable contr...

Page 20: ...y The protection functions are activated when a reverse voltage of approximately 0 4 V or greater is applied If this happens turn off the DUT immediately CAUTION Do not apply a voltage that is greater than the maximum voltage of 30 Vdc to the load input terminals Doing so may damage the product 100 00A 150 00V 16 50W CC 0 000 A SET H 50A 30V SLEWRATE 2 50 mA μs ALARM ENTER OVP CAUTION Connecting t...

Page 21: ... bolt holes M8 for connecting the load wiring Attach appropriate crimping terminals 4 Pass the wiring that you want to connect to the load through the attached load input terminal cover WARNING Possible electric shock Do not touch the load input terminals when the output is turned on Always use the load input terminal cover CAUTION To avoid damaging the product observe the following precautions Do...

Page 22: ...t the chassis connection wire not connecting it to the positive or negative terminal 7 Push the load input terminal cover into the front panel and then fix it into place using the load input terminal cover screws that came with the PLZ 4WL maximum tightening torque 1 N m 8 Connect the load wires to the output terminals of the DUT Connect the positive load input terminal to the positive terminal of...

Page 23: ...ed from the factory To avoid shorting between the terminals we recommend that you leave the barrier in when you make connections When testing some types of devices you may want to remove the barrier Removing the terminal barrier Push the tab on the bottom side of the barrier and pull the barrier towards you Terminal barrier Terminal barrier Push this part and pull the barrier toward you ...

Page 24: ...the same way connect the negative remote sensing terminal S on the rear panel to the negative terminal on the DUT Connect the wiring as close to the DUT as possible Enabling remote sensing p 54 To turn remote sensing on or off from the menu select 2 Configuration 4 Remote Sensing Sensing CAUTION Never wire the sensing terminals while the POWER switch is turned on Doing so may damage the internal c...

Page 25: ...Basic Functions This chapter explains the operations for each operation mode and other basic functions 2 ...

Page 26: ... again while the menu is shown the selected item changes The selected item changes to the next lowest item each time you press the key When you finish the key operation the item at that point is selected and the popup menu is cleared automatically How to use the SHIFT key The SHIFT key switches the function of each key If you press a key without holding down SHIFT the function indicated above the ...

Page 27: ... with the load turned on from the menu select 2 Configuration 2 Power On Load On ON Turn the power switch off and then on again to enable the settings Displaying the time that has elapsed since the load was turned on This function which displays the time that has elapsed since the load was turned on is useful when used in conjunction with undervoltage protection UVP in discharge tests of batteries...

Page 28: ...ng the load off after a specified amount of time The function for turning the load off after a specified period of time is convenient for discharge testing of batteries and capacitors By factory default the load on timer is off p 54 To turn the load on timer on from the menu select 1 Setup 4 Cut Off Time and set the time Turn the power switch off and then on again to enable the settings When the l...

Page 29: ...CR CV mode Constant voltage mode CV mode Constant power mode CP mode Switching between operation modes To switch between operation modes press MODE while the load is off You can press CV SHIFT MODE in CC mode or CR mode to add CV mode You can add CV mode even while the load is on CC CC CV CR CV CR CV CP 0 00mA 0 000V 0 000W CC SLEWRATE 0 000 A 0 01 mA μs SET H 50 A 30 V CP CC CR CV Operation mode ...

Page 30: ...rs and the range that you selected appears along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 4 V and 30 V Press VRANGE SHIFT RANGE until the range that you want to select is highlighted After you selec...

Page 31: ... setting entry condition If SET is not highlighted press SET VSET to switch to the fundamental setting entry condition 4 Turn the rotary knob to set the current and voltage The value that you can set current or voltage changes when you press SET VSET The CC CV mode settings are complete Press LOAD to start testing You can change the current and voltage even when the load is on SWITCHING ENTER SHOR...

Page 32: ...ge that you want to select is highlighted After you select a range the popup menu disappears and the range that you selected appears along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 4 V and 30 V Press...

Page 33: ...tches to CR CV mode and CR CV appears on the display 3 Make sure that the PLZ 4WL is in the fundamental setting entry condition If SET is not highlighted press SET VSET to switch to the fundamental setting entry condition 4 Turn the rotary knob to set the conductance and the voltage The value that you can set conductance or voltage changes when you press SET VSET The CR CV mode settings are comple...

Page 34: ...rs along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 4 V and 30 V After you select a voltage range it appears on the display Press VRANGE SHIFT RANGE until the range that you want to select is highligh...

Page 35: ... appears along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 4 V and 30 V Press VRANGE SHIFT RANGE until the range that you want to select is highlighted After you select a voltage range it appears on th...

Page 36: ...g level to a current or conductance value 1 Press LEVEL The LEVEL key lights and in CC mode the current can be set in CR mode the conductance can be set 2 Turn the rotary knob to set the switching level Setting the switching level to a percentage The specified current or conductance level is equivalent to 100 1 Press SHIFT LEVEL The LEVEL key lights and you can set the switching level to a percent...

Page 37: ...me interval is 10 μs The maximum duty ratio is limited as the frequency gets higher Setting the switching interval using two HIGH and LOW operation times Th and TL Set the HIGH and LOW times It does not matter whether you set the HIGH or LOW time first In the following example the HIGH time will be set first 1 Press Th TL SHIFT FREQ DUTY until Th is highlighted The Th TL key lights and the HIGH ti...

Page 38: ... the current is being changed dramatically You can set the slew rate according to the current range as an amount of current change per unit of time Setting procedure 1 Press SLEW RATE The SLEW RATE key lights 2 Turn the rotary knob to set the slew rate SWITCHING ENTER SHORT EDIT SLEW RATE RUN STOP UVP PAUSE STORE RECALL A B C LOAD Th TL FREQ DUTY MENU PRESET SEQ I LEVEL VRANGE RANGE SW ON CV MODE ...

Page 39: ...rs when the DUT starts by setting an appropriate soft start time If the current rise time that is determined by the slew rate and the current setting is longer than the soft start time the actual rise time will be longer than the soft start time If you want to raise the current according to the soft start time increase the slew rate p 54 To set the soft start time OFF 100 µs 200 µs 500 µs 1 ms 2 m...

Page 40: ...g is set to the maximum current value in constant resistance mode CR mode the fundamental setting is set to the minimum resistance value If you press SHORT SHIFT SLEW RATE while the short function is on the short icon disappears and the short function turns off The fundamental setting returns to the value that it was at before the short function was turned on See Be sure to use a dedicated driver ...

Page 41: ...mory entries RUN STOP SHIFT B rotary knob used to start and stop sequence execution Locking and unlocking the keys If you press LOCK SHIFT LOCAL when the key icon is not displayed the keys are locked and the key icon appears When the key icon is displayed if you press and hold LOCK SHIFT LOCAL until the PLZ 4WL produces a beeping sound the keys are unlocked and the key icon disappears By factory d...

Page 42: ... Local Mode When the PLZ 4WL is in remote mode the remote icon appears on the display To use the front panel to switch the PLZ 4WL back to local mode press LOCAL 0 00mA 0 000V 0 000W CC SLEWRATE 0 500 A 0 01 mA μs SET H 50A 30V Remote icon R ...

Page 43: ...Advanced Operations This chapter explains ABC preset memory setup memory protection functions and the menu 3 ...

Page 44: ...the memory entry on the screen and then turn on the load Differences between preset and setup memory Item Preset Memory Setup Memory Number of memory entries 3 100 Memory number A B or C 0 to 99 Memo Not allowed Allowed up to 15 characters Saved settings Fundamental settings current conductance voltage and power Operation mode Fundamental settings current conductance voltage and power Current and ...

Page 45: ...t you want to create a memory entry for set the range and values 2 Press ABC SHIFT ENTER The A B and C keys start blinking 3 Of A B and C press the key that you want to save the settings to The key that you press lights and the settings are saved to the key that you selected If you change the settings the key light turns off Operation Mode Fundamental Settings CC mode Current CR mode Conductance r...

Page 46: ...ings stored in the specified preset memory are displayed You can recall a different preset memory entry by pressing another preset memory key A B or C 3 Check the contents of the preset memory entry and press ENTER The selected key lights The settings that correspond to the selected memory entry are recalled and applied If you change the settings the key light turns off Memory recall method DIRECT...

Page 47: ...SHIFT RECALL The STORE key blinks and the setup memory storage screen appears The last memory number that an entry has been saved to appears when the PLZ 4WL has just been shipped the number that appears is 0 3 Turn the rotary knob to select the memory number that you want to save to If you select a memory number that has already been saved to the previous settings are overwritten 4 To enter a mem...

Page 48: ...key blinks and the setup memory recall screen appears The last memory number that an entry has been saved to appears when the PLZ 4WL has just been shipped the number that appears is 0 3 Turn the rotary knob to select the appropriate memory number If an entry has a memo the memo will appear beneath the entry s memory number 4 Press ENTER The RECALL key lights and the setup memory settings are reca...

Page 49: ...lue overcurrent protection activation value or 110 of the maximum current range value Load off or limit1 1 If you choose to limit the current the current is limited so that the protection function activation value is not exceeded Current limiting stops after the alarm is released Overvoltage protection OVP 115 of the maximum input voltage Load off Overpower protection OPP A specified power value o...

Page 50: ... set the overcurrent protection activation value in CC mode 1 Make sure that the load is off If the LOAD LED is lit press LOAD to turn the load off 2 Press OPP OCP until OCP is highlighted on the display The OPP OCP key lights Pressing OPP OCP switches between OCP and OPP 3 Turn the rotary knob to set the overcurrent protection activation value Details about overpower protection OPP You can set th...

Page 51: ... SHIFT OPP OCP The UVP key lights 2 Turn the rotary knob to set the undervoltage protection activation value If you set the value to OFF undervoltage protection is disabled Details about reverse connection protection REV When a reverse voltage is detected and the load is turned off turn off the DUT immediately p 24 If you are using the remote sensing function and the sensing wires are connected in...

Page 52: ...sponse speed The response speed can be specified in CV mode and CR mode The response speed is set to normal by factory default p 54 To set the response speed of negative feedback in CV mode FAST or Normal from the menu select 1 Setup 5 Response CV Response To set the response speed of negative feedback in CR mode FAST or Normal from the menu select 1 Setup 5 Response CR Response See ...

Page 53: ...hether or not to display the elapsed time ON or OFF from the menu select 1 Setup 1 Function Count time Auto load off timer Cut Off Time In voltage measurement the voltage immediately before the load turns off is measured You can configure the PLZ 4WL to turn the load off after a specified amount of time has elapsed After the load turns off a popup window appears indicating the input voltage immedi...

Page 54: ...item 2 appears 5 Repeat step 3 and step 4 to move to the setting that you want to set 6 Turn the rotary knob to set the setting Next set other conditions 7 After you have finished configuring the settings press MENU SHIFT SET VSET The menu screen will close and the settings that you configured will be applied 1 Setup 2 Configuration 4 Model Info PREV NEXT 3 Calibration Menu Menu screen item 1 disp...

Page 55: ...r is turned on ON The load is on when the power is turned on State of the load when the power switch is turned on Key Lock OFF Keys are not locked ON Keys are locked Key lock 2 Interface Control GPIB RS232C USB Interface setting GPIB Address 1 to 30 1 GPIB address RS232C Baudrate 2400bps 4800bps 9600bps 19200bps Baud rate Data2 Stop 2 Information about the PLZ 4WL It cannot be changed 8 1 2 Data l...

Page 56: ... its settings to their factory defaults 1 Turn the POWER switch off 2 Make sure that nothing is connected to the DC INPUT terminals the load input terminals on the front panel 3 While holding down ENTER turn the POWER switch on Keep holding ENTER until the display lights up and SET CLR appears The PLZ 4WL will start up with the factory default settings PLZ164WL VERSION SET CLR SUB 1 00 MAIN 1 02 S...

Page 57: ...Sequences This chapter explains the sequence function Sequences 4 ...

Page 58: ...grams can be saved and the maximum number of steps that can be contained in all programs combined is 256 steps You can include commands to unpause the PLZ 4WL after it has been paused through the pressing of PAUSE or through an external trigger signal Fast sequences For fast sequences the execution time of each step is determined by the TIME BASE execution interval setting Each step has the same i...

Page 59: ...ct OFF Entering values You can increase or decrease the value of a numerical setting by turning the rotary knob If the value consists of many digits you can press or to move the cursor directly to the desired digit and increase or decrease only that digit For example if you want to set a value to 100 you can simply move the cursor to the hundreds digit and enter 1 using the rotary knob Entering ch...

Page 60: ... program is completed after the program s last step has been executed First configure the program settings and then configure the step settings p 64 The details of the method for configuring a normal sequence are explained in Sequence Example Normal Sequence Step 001 Step 002 Step 003 END Program Program Program The maximum total number of steps is 256 The maximum number of programs is 10 Step 001...

Page 61: ... SHIFT to configure the step settings Item Setting Description No 1 to 10 Program number 11 is for the fast sequence Memo Up to 11 characters A memo Mode NCC CC mode NCR CR mode NCV CV mode NCP CP mode The program operation mode Range PLZ164WL 50 A 30 V 5 A 30 V 500 mA 30 V 50 A 4 V 5 A 4 V 500 mA 4 V PLZ334WL 100 A 30 V 10 A 30 V 1 A 30 V 100 A 4 V 10 A 4 V 1 A 4 V The program current and voltage...

Page 62: ...tch between screens by pressing NEXT SHIFT and PREV SHIFT Step value Set the fundamental setting current conductance voltage or power value Step execution time Set the time for which the step is executed 0 00 00 001 to 999 59 SEQ EDIT PREV NEXT CC SET A END TOTAL 000 SEQ EDIT PREV NEXT 7 000A CC SET A END TOTAL 001 001 Press INS SHIFT Step Editing Screen Contents Step value The fundamental setting...

Page 63: ...3 of the J1 connector p 91 Deleting steps Press and to highlight the step that you want to delete and then press DEL SHIFT The highlighted step is deleted Item Setting Description LOAD ON Load on OFF Load off Turns the load on or off RAMP ON Slope OFF Step The ramp step transition TRIG ON Output OFF Don t output The trigger signal during step execution PAUSE ON Pause OFF Don t pause Whether or not...

Page 64: ...the second execution of program 2 is finished Step Setting Step Execution Time LOAD RAMP TRIG Step 1 7 A 200 s 3 min 20 s On On Off Step 2 7 A 150 s 2 min 30 s On Off Off Step 3 0 5 A 80 s 1 min 20 s Off Off On Step Setting Step Execution Time LOAD RAMP TRIG Step 1 10 A 200 s 3 min 20 s On On Off Step 2 5 A 50 s On Off Off Step 3 8 A 150 s 2 min 30 s On On Off 10 A 7 A 8 A 5 A Execution RUN 7 A 20...

Page 65: ... to move the cursor to Range and set the current and voltage ranges 50 A and 30 V Turn the rotary knob to select 50 A 30 V 6 Press to move the cursor to Loop and set the number of times to execute the program to 1 Turn the rotary knob to select the number 7 Press to move the cursor to Last Load and select the state that the load will be in after the sequence ends select OFF In this example program...

Page 66: ...p 2 6 Press NEXT SHIFT or ENTER The step execution time screen appears SEQ EDIT PREV NEXT CC SET A END TOTAL 000 SEQ EDIT PREV NEXT 7 000A CC SET A END TOTAL 001 001 SEQ EDIT PREV NEXT 7 000A CC SET A END TOTAL 002 002 001 7 000A Memo You can move the cursor by pressing and Press PREV SHIFT to return to the previous screen 1 Press to move the cursor to step 001 At first the execution time is 0 00 ...

Page 67: ...he item that you want to set Turn the rotary knob to choose a setting Leave TRIG and PAUSE set to OFF 3 Press to move the cursor to step 002 For step 2 set LOAD to ON Leave RAMP TRIG and PAUSE set to OFF 4 Press to move the cursor to step 003 For step 3 set TRIG to ON Leave LOAD RAMP and PAUSE set to OFF All the settings for program 1 have been entered Next we will edit program 2 SEQ EDIT PREV 001...

Page 68: ...ss to move the cursor to Range and set the current and voltage ranges to 50 A and 30 V 6 Press to move the cursor to Loop and set the number of times to execute the program to 2 7 Press to move the cursor to Last Load and select the state that the load will be in after the sequence ends select OFF 8 Press to move the cursor to Last Set and select the current that the load will supply after the seq...

Page 69: ...n patterns for steps 1 to 3 For step 1 set LOAD to ON RAMP to ON TRIG to OFF and PAUSE to OFF For step 2 set LOAD to ON RAMP to OFF TRIG to OFF and PAUSE to OFF For step 3 set LOAD to ON RAMP to ON TRIG to OFF and PAUSE to OFF All the settings for program 2 have been entered 4 Press PREV SHIFT four times to exit the sequence editing screen Each time you press PREV SHIFT the previous screen is disp...

Page 70: ...able units called steps When program 11 is executed its steps are executed in order starting with step 0001 A single execution of a program is completed after the program s last step has been executed First configure the program settings and then configure the step settings p 74 The details of the method for configuring a fast sequence are explained in Sequence Example Fast Sequence Step 0001 Step...

Page 71: ... to configure the step settings Item Setting Description No 11 Program number 1 to 10 are for the normal sequences Memo Up to 11 characters A memo Mode FCC CC mode FCR CR mode The program operation mode Range 50 A 30 V example The current and voltage ranges for the program vary depending on the model Loop 1 to 9998 9999 Infinite repetition The number of times that the program will repeat Last Load...

Page 72: ...rsor moves between items in this order step number current trigger output setting and then magnification Each time you press the cursor moves between items in this order magnification trigger output setting current and then step number You can use the FILL function to set multiple steps at once Trigger output TRIG Use this setting to specify whether or not to produce a trigger signal If you set TR...

Page 73: ...the cursor to DATA1 and use the rotary knob to set the current of the first step In the same way set DATA2 the current of the last step START the step number of the first step and STOP the step number of the last step After you have finished making the settings press ENTER to return to the monitor screen In the example in the figure below the same waveform is repeated twice First set the first ste...

Page 74: ...number 15 Step execution time 1 ms When you execute the sequence program 11 will be repeated three times point A to B point B to C point C to D After program 11 has been executed 3 times it will finish and the current will change to 1 A point E Step Setting Trigger Output Steps 1 to 5 10 A Off Step 6 5 A On Steps 7 to 10 10 A Off Step 11 5 A Off Steps 12 to 15 10 A Off 10A 5A Execution RUN 1A Trig...

Page 75: ...ect 50 A 4 V 6 Press to move the cursor to Loop and set the number of times to execute the program to 3 Turn the rotary knob to select the number 7 Press to move the cursor to Last Load and select the state that the load will be in after the sequence ends select ON Turn the rotary knob to select ON 8 Press to move the cursor to Last Set and select the current that the load will supply after the se...

Page 76: ...turn the rotary knob to set the value to 10 A 4 Press to move the cursor to STEP 5 Set the currents for steps 2 through 5 to 10 A in the same way that you set step 1 6 Set the current for step 6 to 5 A 7 Press to move the cursor to the trigger output setting and turn the rotary knob to select T 8 Set the currents for steps 7 to 10 to 10 A 9 Set the current for step 11 to 5 A 10Set the currents for...

Page 77: ...r 11 4 Press RUN STOP SHIFT B to execute the selected sequence The sequence will be executed and the measured values will appear on the display When the sequence is completed a popup window appears on the screen 5 Press ENTER to exit the sequence execution screen If a step s PAUSE setting has been set to ON the sequence operation will pause after the step has been executed To resume operation pres...

Page 78: ...rst turn off the load and then set the mode and range to match those of the sequence that you want to execute When the load is off if the current mode and range settings do not match those of the sequence that you are trying to execute the settings of the sequence are automatically changed to match the current settings Before Sequence Execution Sequence Execution Load on off state Mode and range s...

Page 79: ...External Control This chapter explains external control 5 ...

Page 80: ... that indicate the status can be produced The J1 connector is used for external control Analog Voltage Control CC CP CR and CV mode values Current to superimpose on the CC mode current Digital Control Turning the load on and off and monitoring its status Range control for each operation mode Unpausing during sequence operation Forced alarm generation Alarm clearing Signal Output Load on off status...

Page 81: ... shown in the following table For information about how to use these tools and components see the OMRON Corporation or KEL Corporation catalogs When using a flat cable be sure to use a connector with a strain relief To press fit discrete wires or flat cables be sure to use a special tool For a description of applicable cables and tools see the catalog of the relevant connector manufacturer p 134 A...

Page 82: ...0 V for full scale H L range 1 V for full scale M range 8 A COM Connected to the negative load input terminal 9 LOAD ON OFF CONT The load is turned on by a low or high CMOS level signal The logic levels can be switched The internal circuit is pulled up to 5 V by a 10 k resistor 10 RANGE CONT 1 Input for switching the range externally 1 The internal circuit is pulled up to 5 V by a 10 k resistor Va...

Page 83: ... STATUS COM STATUS signal common for pins 17 to 20 23 N C 24 N C 25 SHORT SIGNAL OUT Relay contact output 30 VDC 1 A 26 SHORT SIGNAL OUT 1 Valid only when the front panel setting is H range 2 The maximum applied voltage of the photocoupler is 30 V and the maximum current is 8 mA 3 Pin No Signal Name Description RANGE CONT 0 RANGE CONT 1 H range H H M range H L L range L H RANGE STATUS 0 RANGE STAT...

Page 84: ... the load is off 4 Set the operation mode and the current range If you also want to control the current range externally be sure to set the range to H p 54 5 From the menu select 2 Configuration 3 External Control CC CR CP ON Doing so enables the external control of CC CR and CP mode 6 Turn the power switch off and then on again The menu settings are applied CAUTION To avoid damaging the PLZ 4WL o...

Page 85: ...is off 4 Set the operation mode and the current range If you also want to control the current range externally be sure to set the range to H p 54 5 From the menu select 2 Configuration 3 External Control CC CR CP ON Doing so enables the external control of CC CR and CP mode 6 Turn the power switch off and then on again The menu settings are applied CAUTION To avoid damaging the PLZ 4WL observe the...

Page 86: ...is off 4 Set the operation mode and the current range If you also want to control the current range externally be sure to set the range to H p 54 5 From the menu select 2 Configuration 3 External Control CC CR CP ON Doing so enables the external control of CC CR and CP mode 6 Turn the power switch off and then on again The menu settings are applied CAUTION To avoid damaging the PLZ 4WL observe the...

Page 87: ...he operation mode and the current range If you also want to control the current range externally be sure to set the range to H p 54 5 From the menu select 2 Configuration 3 External Control CV ON Doing so enables the external control of CV mode 6 Turn the power switch off and then on again The menu settings are applied CAUTION To avoid damaging the PLZ 4WL observe the following precautions The max...

Page 88: ...0 V Connected pins J1 3 signal J1 4 common To avoid noise interference use a highly stable low noise external voltage source and twisted signal wires 1 Turn the POWER switch off 2 Connect the external voltage across pins 3 and 4 of the J1 connector 3 Turn the POWER switch on and make sure that the load is off 4 Set the operation mode and the current range If you also want to control the current ra...

Page 89: ... to enable the settings If you are not going to control the output using an external contact set the logic to HIGH the default setting The input pin is pulled up to the internal circuit s 5 V level by a resistor that is approximately 10 k The maximum allowable voltage is 5 V The logic threshold levels are CMOS See On Off H On L Off indicates that the LOAD key has been pressed The LOAD has been tur...

Page 90: ... Load on status signal output To monitor the status on or off of the load externally monitor the output signal across pins 17 and 22 of the J1 connector J1 Photocoupler P C 17 22 Maximum applied voltage 30 V Maximum current 8 mA Load on Load off Photocoupler On Off ...

Page 91: ...oltage of 5 V and a pulse width of 10 µs or more across pins 13 and 15 or 13 and 16 of the J1 connector The trigger signal is output on the rising edge of the pulse signal applied to the trigger input terminal The input pin is pulled up to the internal circuit s 5 V level by a resistor that is approximately 10 k The maximum allowable voltage is 5 V The logic threshold levels are CMOS A COM J1 100 ...

Page 92: ...r use pin 15 or 16 as the common The signal is 2 bit The control terminals are pulled up to the internal circuit s 5 V level by a resistor that is approximately 10 k The maximum allowable voltage is 5 V The logic threshold levels are CMOS Range status output Use pins 18 RANGE STATUS 1 and 19 RANGE STATUS 0 of the J1 connector pin 22 is common The signal is 2 bit Current Range Control Input1 Status...

Page 93: ...6 of the J1 connector After an alarm has occurred a low level signal applied after the reason for the alarm has been eliminated releases the alarm The alarm release terminals are pulled up to the internal circuit s 5 V level by a resistor that is approximately 10 k The maximum allowable voltage is 5 V The logic threshold levels are CMOS Alarm status output To monitor the alarm status externally mo...

Page 94: ...r on the PLZ 4WL front panel and across pins 7 and 8 pin 8 is common of the J1 connector I MON OUT connector BNC on the PLZ 4WL front panel The common is connected to the chassis electric potential It is isolated from A COM For current ranges H and L 1 V corresponds to the full scale current for current range M 0 1 V corresponds to the full scale current The output impedance is approximately 50 Ac...

Page 95: ...Maintenance This chapter describes the maintenance procedures including cleaning inspection and calibration 6 ...

Page 96: ...at are attached to the dust filter If the filter is extremely dirty clean it using a water diluted neutral detergent and dry it completely 4 Attach the louver so that its tabs enter the slots in the panel While pushing on the second slat from the bottom of the louver slide the louver up to attach it to the PLZ 4WL CAUTION A clogged filter hinders the cooling of the inside of the PLZ 4WL can cause ...

Page 97: ... inspection and cleaning To have the PLZ 4WL overhauled please contact a Kikusui distributor or agent Backup battery replacement The PLZ 4WL has a battery inside The battery s service life differs depending on the environment that the PLZ 4WL is used in but three years after it is purchased is a rough estimate for the battery s service life If the panel settings are not retained after the power sw...

Page 98: ... and voltage values are determined by the calibrated straight line Calibrated items The following eight items are calibrated for the three voltage ranges and the two current ranges 1 The offset value of the internal reference voltage for current settings 2 The gain value of the internal reference voltage for current settings 3 The offset value of the internal reference voltage for voltage settings...

Page 99: ... error caused by initial drift Keep the ambient temperature at 23 5 C Equipment used Connect the equipment as shown below Select an appropriate shunt resistor according to type of calibration that you are performing 1 CC Low 2 CC Mid 4 CV 4V 5 CV 30V PREV NEXT 3 CC High Calibration Calibration number Name Required Accuracy Required Rating DC voltmeter Within 0 02 Measurement voltage range 0 V to 3...

Page 100: ...o approximately 2 to 5 of the load device s rated current 6 Press ENTER The load turns on automatically and the offset calibration CC Low Offset Adjustment screen appears Current Range Percentage of the Full Scale Calibrated Items Internal reference voltage for current settings Measured Values Internal Reference Voltage for the Protection Function Settings Offset Gain Offset Gain Offset Gain Low 1...

Page 101: ...t resistor that matches the value corresponding to 100 of the maximum low range value 12Press ENTER The load turns on automatically and the gain calibration screen CC Low Gain Adjustment appears 13Press or to set the cursor position of DAC REF and then turn the rotary knob so that the current flowing through the shunt resistor is within 0 1 of the value corresponding to 100 of the full scale value...

Page 102: ...ng the low range Monitor the input voltage using an external voltmeter Step E Calibrate the offset values of the internal reference voltage for voltage settings and the measured values 1 Use and to select 4 CV 4V 2 Connect a CC power supply to the load input terminals and supply 0 5 A Set the power supply voltage to 4 5 V or greater Voltage Range Percentage of the Full Scale Calibrated Items Inter...

Page 103: ... values of the internal reference voltage for voltage settings and of the measured values 8 Press ENTER The load turns on automatically and the gain calibration CV 4V Gain Adjustment screen appears 9 Press or to set the cursor position of DAC REF and then turn the rotary knob so that the input voltage is within 0 05 of the value corresponding to 100 of the full scale value see the table of CV mode...

Page 104: ...ing Calibration 1 Press PREV SHIFT The screen that was displayed before the calibration screen appears 2 Press MENU SHIFT SET VSET The screen that was displayed before the menu appears When you press ENTER or NEXT SHIFT in the gain calibration screen the calibration data is written to the internal memory If you only want to check the calibration data be sure to press PREV SHIFT or MENU SHIFT SET V...

Page 105: ...the power cord plug from the outlet Immediately stop the use of the instrument and request repairs Check Item Possible Cause Remedy Location and Status of the Object Check Result Is rated voltage applied for the input power supply AC No Low supply voltage Use the PLZ 4WL in the input supply voltage range Yes Bad contrast adjustment Adjust the contrast See Turning the Power On on page 15 Check Item...

Page 106: ... setup screen See Protection Functions on page 49 Is OPP tripped Yes The OPP setting is small Reset the OPP value in the setup screen See Protection Functions on page 49 Check Item Possible Cause Remedy Location and Status of the Object Check Result A sequence is in operation Yes Wait for the sequence operation to finish Abort the sequence by pressing STOP No The load on off logic Load ON IN is se...

Page 107: ...7 Specifications This chapter contains the specifications and gives the dimensions of the PLZ 4WL ...

Page 108: ...ns to flow through the PLZ 4WL is approximately 50 mV At the load input terminals 0 3 V to 30 V2 2 The minimum operating voltage including the voltage drop due to the wire inductance component in switching mode increases by approximately 40 mV per 1 A µs of the slew rate setting Current 50 A 100 A Power 165 W 330 W Model PLZ164WL PLZ334WL Operating range H range 0 A to 50 A 0 A to 100 A M range 0 ...

Page 109: ...8 6 m to OPEN Resolution H range 3 mS 6 mS M range 300 µS 600 µS L range 30 µS 60 µS Accuracy of setting2 2 Converted value based on the input current at the sensing point 0 5 of set3 0 5 of f s4 Vin5 150 k 3 set Vin Rset 4 The full scale of the range However for the M range it is the full scale of the H range 5 Vin The voltage at the load input or sensing terminals Model PLZ164WL PLZ334WL Operati...

Page 110: ...M range it is the full scale of the H range Voltmeter Model PLZ164WL PLZ334WL Display H range 0 000 V to 30 000 V L range 0 0000 V to 4 0000 V Accuracy 0 1 of reading 0 1 of f s Ammeter Model PLZ164WL PLZ334WL Display H range 0 000 A to 50 000 A 0 00 A to 100 00 A M range 0 000 A to 5 000 A 0 000 A to 10 000 A L range 0 00 mA to 500 00 mA 0 0000 A to 1 0000 A Accuracy 0 2 of reading 0 3 of f s Wat...

Page 111: ...5 A µs 5 mA µs to 50 A µs M range 250 µA µs to 2 5 A µs 500 µA µs to 5 A µs L range 25 µA µs to 250 mA µs 50 µA µs to 500 mA µs Resolution the setting ranges are indicated in parentheses H range 12 5 mA µs 250 mA µs to 25 A µs 25 mA µs 500 mA µs to 50 A µs 125 µA µs 2 5 mA µs to 250 mA µs 250 µA µs 5 mA µs to 500 mA µs M range 1 25 mA µs 25 mA µs to 2 5 A µs 2 5 mA µs 50 mA µs to 5 A µs 12 5 µA µs...

Page 112: ...del PLZ164WL PLZ334WL Overvoltage protection OVP Turns off the load at 115 of the rated voltage Overcurrent protection OCP Can be set to a value from 10 to 110 of the rated current The action can be set to load off or limit Overpower protection OPP Can be set to a value from 10 to 110 of the rated power The action can be set to load off or limit Overheat protection OHP Turns off the load when the ...

Page 113: ...0 h 1 min for 100 h to 999 h 59 min Fast sequence Operation modes CC and CR Maximum number of steps 1024 Step execution time 25 µs to 100 ms Time resolution 25 µs for 25 µs to 100 µs 100 µs for 100 µs to 100 ms Model PLZ164WL PLZ334WL Elapsed time display Measures the time from load on to load off Can be turned on and off Measures from 1 s up to 999 h 59 min 59 s Auto load off timer Automatically ...

Page 114: ...the range of voltages from 0 of the rated voltage to 100 of the rated voltage External voltage control superimposing in CC mode Superimpose the current on the CC mode panel remote setting by applying an external voltage of 10 V to 10 V CC mode 0 V corresponds to 0 of the current setting and 10 V corresponds to 100 of the current setting Current monitor output 10 V for f s H or L range 1 V for f s ...

Page 115: ... I product Be sure to ground this product s protective conductor terminal The safety of this product is only guaranteed when the product is properly grounded 4 Pollution is addition of foreign matter solid liquid or gaseous that may produce a reduction of dielectric strength or surface resistivity Pollution Degree 2 assumes that only non conductive pollution will occur except for an occasional tem...

Page 116: ...MAX455 17 91 400 15 75 55 2 16 275 10 83 70 2 76 Diameter 30 1 18 Foot x 4 Diameter 9 0 35 x 2 Diameter 5 0 97 Foot attachment hole x 4 Maximum depth that screws can be inserted is 6 mm 0 31 inches M3 screw hole x 4 M4 screw hole x 4 C1 x 2 C5 x 2 124 4 88 27 25 1 07 160 6 30 27 25 1 07 35 25 1 385 35 25 1 385 144 5 67 MAX155 6 1 MAX20 0 79 34 7 19 7 5 ...

Page 117: ...Appendix A Operating Area B Sequence Program Creation Table C Options ...

Page 118: ...f the input voltage exceeds the minimum operating voltage and a current greater than or equal to 0 2 of the range rating greater than or equal to 0 2 of the H range when the PLZ 4WL is set using the M range starts flowing the current can keep flowing even when the voltage is reduced down to as low as approximately 20 mV For the operating areas of each model see Operating areas of each model Basic ...

Page 119: ...power protection OPP is activated At this point one of two types of operations occurs depending on the protection action setting for OPP If the protection action is set to LOAD OFF the load turns off If the protection action is set to LIMIT the PLZ 4W sinks current as a constant power load at point B Even if you attempt to increase the input current the current will not increase beyond point B If ...

Page 120: ...that the PLZ 4WL is being used in constant resistance CR mode to test the load characteristic of a constant voltage power supply If the overcurrent protection OCP setting IOCP is greater than the current value IB at point B when the PLZ 4WL resistance is decreased R1 R2 RB so that the input current load current increases with the voltage of the constant voltage power supply at V1 the operating poi...

Page 121: ...e protection action is set to LOAD OFF the load turns off If the protection action is set to LIMIT the PLZ 4W sinks current as a constant current load at point F Even if you attempt to decrease the resistance to increase the current the current will not increase beyond point F If you increase the resistance to decrease the input current overcurrent protection OCP is cleared The PLZ 4WL returns to ...

Page 122: ...creasing the input current load current the operating point moves along segment AB A1 A2 B When point B is reached overcurrent protection OCP is activated At this point one of two types of operations occurs depending on the protection action setting for OCP If the protection action is set to LOAD OFF the load turns off If the protection action is set to LIMIT the PLZ 4W sinks current as a constant...

Page 123: ... increasing the input current load current the operating point moves along segment GH Point G is the maximum power in the range being used Point B LOAD OFF The load is turned off no current flows The PLZ 4WL stops operating as a load LIMIT The PLZ 4WL switches out of constant power CP mode Overcurrent protection OCP continues and the PLZ 4WL operates as a constant current load ...

Page 124: ... flow if the PLZ 4WL voltage VM0 is greater than VM If the voltage of the PLZ 4WL is decreased so that VM0 is less than VM current starts flowing If the voltage is decreased further VM1 VM2 VN so that the input current load current increases the operating point moves along segment MN M1 M2 N When point N is reached overpower protection OPP is activated At this point one of two types of operations ...

Page 125: ...LIMIT the PLZ 4WL sinks current as a constant current load at point L Even if you attempt to decrease the voltage the current will not increase beyond point L If you increase the voltage overcurrent protection OCP is cleared The PLZ 4WL returns to constant voltage CV mode and the operating point moves along segment ML Point N LOAD OFF The load is turned off no current flows The PLZ 4WL stops opera...

Page 126: ...V mode the PLZ 4WL may operate unstably if R1 is low Transition of the operating point overpower protection OPP In this example we will assume that the discharge characteristic of a battery is being measured The battery voltage is VM In constant current CC mode if the current is increased IM1 IM2 IN so that the input current load current increases the operating point moves along segment MN M1 M2 N...

Page 127: ... setting is PN1 because overpower protection OPP is not activated as the current is increased the operating point reaches point S At point S the PLZ 4WL switches to constant voltage CV mode The voltage is fixed at the user specified voltage VQ The operating point moves along segment QS The current is determined by the voltage and internal resistance of the battery Point N LOAD OFF The load is turn...

Page 128: ...istic of a battery is being measured When the overcurrent protection OCP setting IOCP is greater than current IN at point N the voltage of the battery is VM In constant resistance CR mode if the resistance is reduced RM1 RM2 RN so that the input current load current increases the operating point moves along segment MN M1 M2 N When the overpower protection OPP setting is PN OPP is activated when po...

Page 129: ...nt load at point T Even if you attempt to decrease the resistance to increase the current the current will not increase beyond point T If you increase the resistance to decrease the current overcurrent protection OCP is cleared The PLZ 4WL returns to constant resistance CR mode and the operating point moves along segment MT If the overcurrent protection OCP setting is IOCP1 because overcurrent pro...

Page 130: ...50 mV 20 mV 0 0 3 V 5 A Input current A Input current A Input voltage V Input voltage V Operating area where specifications are guaranteed Actual operating area Actual operating area Operating area where specifications are guaranteed CP mode M range 16 5 W 0 1 V 3 3 V 30 V 0 1 A 0 3 V 0 55 A 5 A Logarithmic scale 0 50 mV 20 mV 0 0 3 V 0 5 A Input current A Input current A Input voltage V Operating...

Page 131: ... V 10 A Input current A Input current A Input voltage V Input voltage V Actual operating area Actual operating area Operating area where specifications are guaranteed CP mode M range 33 W 0 1 V 3 3 V 30 V 0 1 A 0 3 V 1 1 A 10 A Logarithmic scale Operating area where specifications are guaranteed 0 50 mV 20 mV 0 0 3 V 1 A Input current A Input current A Input voltage V Input voltage V Actual operat...

Page 132: ... number 1 to 10 Memo Up to 11 characters Operation mode CC CR CV CP Range Current A Voltage V A V Loop 1 to 9999 Last Load OFF ON OFF ON Last Set Chain OFF 1 to 10 Step number Setting mA mS V W Execution time h min s ms LOAD RAMP TRIG PAUSE Note 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...

Page 133: ...xecution time h min s ms LOAD RAMP TRIG PAUSE Note 1 7 A 200 s ON ON OFF OFF 2 7 A 150 s ON OFF OFF OFF 3 0 5 A 80 s OFF OFF OFF OFF Program name Example sequence of chapter 6 PLZ164W Date By Program number 1 to 10 2 Memo Up to 11 characters Program2 Operation mode CC Range Current A Voltage V 50 A 30 V Loop 1 to 9999 0002 Last Load OFF ON OFF Last Set 0 Chain OFF 1 to 10 OFF Step number Setting m...

Page 134: ...ps that occur when current changes at a high rate Analog remote control connector kit OP01 PLZ 4WL A kit for connecting to the J1 connector on the rear panel KRA3 Inch rack EIA standard KRA150 Milli rack JIS standard TL01 PLZ TL02 PLZ TL03 PLZ Full length 1 1 Between the insulation caps 500 mm 1000 mm 2000 mm Inductance value typical value 2 2 at 100 kHz 140 nH 150 nH 200 nH Socket 1 pc Pins 26 pc...

Page 135: ...ction 73 fine adjustment 26 front panel BNC terminal 114 fundamental setting entry condition 15 G gain value 98 H handle removing 13 I I MON terminal 8 initial drift 99 inrush current 115 INS key 9 J J1 connector 10 81 J1 connector pin arrangement 82 K key icon 41 keylock function 41 L Last Load 61 71 Last Set 61 71 LOAD 63 load on and load off 27 LOCAL key 9 lock function 41 LOCK key 9 Loop 61 71...

Page 136: ... 40 slew rate 38 soft start 39 step 60 70 storage humidity range 115 storage temperature range 115 STORE key 9 switching function 36 T TIME BASE 71 time measurement 53 TRIG 63 trigger signal output 94 U undervoltage protection 51 UVP 51 V version 2 version checking 16 voltage measurement 53 W warm up 99 weight 115 ...

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Page 138: ...KIKUSUI ELECTRONICS CORP http www kikusui co jp en 1 1 3 Higashiyamata Tsuzuki ku Yokohama 224 0023 Japan Tel 81 45 593 7570 Fax 81 45 593 7571 Website ...

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