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4-2-2

Digital ZERO Function

Digital ZERO function is a function that decides the reference point of the indicator.
It is as same as setting the scale needle to ‘0’ position.
There are 2 methods for deciding the reference point (ZERO), by key operation and by operation of contact
input from the rear panel.

(1)

Key Operation

• Press the ZERO key in the measuring mode for 2 seconds and the digital ZERO function is activated to set

the indication to ‘0.’

• If the additional value is set, it indicates the determined additional value.
Note: Results of this operation are maintained even if the power is turned OFF.

(2)

Operation From the Rear Panel

  •  Short circuit rear terminals between Nos. 6 and 9 to conduct digital ZERO function.
    Digital ZERO function is conducted even if the [LOCK] LED is lit.
  •  While short-circuited, since it is conducting ZERO calculation , the indication is set to ‘0.’
  • Open the terminals between Nos. 6 and 9 and it returns to the measuring mode after the digital ZERO

function

Note: Results obtained from this function is disabled with the power OFF.

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Содержание WGA-670B

Страница 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Страница 2: ...other than described in this Manual Copyright KYOWA ELECTRONIC INSTRUMENTS CO LTD All rights reserved This Instruction Manual may not be copied or reproduced in whole or part without consent of KYOWA This Instruction Manual has been prepared with great care However if the need should arise for more information contact KYOWA or our representative Contents of the Manual are subjected to change witho...

Страница 3: ......

Страница 4: ... 8 2 2 8 Connecting RS Output WGA 670B 7 8 2 2 9 Connecting TEDS Signal WGA 670B 7 8 3 BASIC OPERATION FLOW 9 4 OPERATION FUNCTION 10 4 1 KEY OPERATION 10 4 1 1 Key Operation in Measuring Mode Setting LOCK 10 4 1 2 Key Operation in Function Selecting Mode 11 4 1 3 Key Operation in Function Setting Mode 11 4 2 FUNCTION 12 4 2 1 Various Functions in Function Selecting Mode 12 4 2 2 Digital ZERO Func...

Страница 5: ...T 31 6 5 SIGNAL TIMING 32 7 RS 232C OPTION 33 7 1 OUTLINE 33 7 2 RS 232C INTERFACE 33 7 3 OUTLINE of CONTROL COMMAND 35 7 4 DETAILS of VARIOUS CONTROL COMMANDS 37 8 TEDS OPTION 46 8 1 OUTLINE 46 8 2 CONNECTION 46 8 3 OPERATION 47 9 SPECIFICATIONS 49 9 1 SPECIFICATIONS 49 9 2 OUTSIDE DRAWING 51 10 ERROR CODE LIST 54 ...

Страница 6: ...the WGA 670B the following WARNING and CAUTION symbols are used in Safety Precautions of this Instruction Manual WARNING Improper operation of the system may result in severe injury or death of the operator CAUTION Improper operation of the system may result in injury to the operator and physical damage to the system In addition items in CAUTION may lead to serious consequences Take special attent...

Страница 7: ...ate the WGA 670B in environment with excessive moisture dust or oil dust Or it may cause fire and or electric shock to the operator 10 Do not disassemble the WGA 670B Or it may cause deterioration or malfunction of the instrument 11 When it started thundering do not touch the WGA 670B or cable Or it may cause an electric shock to the operator 12 Always ground a protective ground terminal Or it may...

Страница 8: ...nclosed with the WGA 670B Customers are required to separately purchase a power cable appropriate for the power supply in use Ex For 100 VAC P 23 For 200 VAC P 24 TYPES The WGA 670B has various types with optional functions as follows Model Name No option With BCD output With RS 232C output Compatible with TEDS WGA 670B 0 WGA 670B 1 WGA 670B 7 TEDS Transducer Electronic Data Sheet hereinafter refe...

Страница 9: ...plus side OFL3 When the indicated value is below 19999 OFL4 When the indicated value is above 19999 B Unit Label C LOCK LED When this LED is lit or flickering no functions are set Always turn OFF the LOCK LED before setting functions D HIGH Limit LED Lights up when the measured value exceeds the high limit value Flickers when high limit value is indicated E LOW Limit LED Lights up when the measure...

Страница 10: ...dge exciter Nos 6 to 9 Control contact input terminals 6 COM 7 RESET 8 HOLD 9 Digital ZERO input Nos 12 to 14 Analog output terminals 12 Current output 13 Common 14 Voltage output Nos 15 to 17 Comparator open collector output terminals 15 COM 16 LOW limit output 17 HIGH limit output No 18 Protective ground terminal Grounding should be made to prevent an electric shock hazard Nos 19 20 LINE IN Conn...

Страница 11: ...press fit terminal 1 25 3 After completing wirings to the terminal board do not forget to cover the terminal board 2 2 2 Connecting Power Supply Power supply terminals are as follows No 19 N No 20 L Always confirm the power voltage is 100 to 240V AC 10 and use a cable having higher withstand voltage capacity than power voltage 2 2 3 Connecting Transducer Connect a transducer to terminals from Nos ...

Страница 12: ...arator output connection terminal is as follows No 15 Common terminal COMMON No 16 Low limit No 17 High limit Connect as shown in the right figure For connecting more than 1 m long cable use a twisted cable For connecting more than 3 m long cable use a 2 conductor twisted cable and do not forget to ground the shielded cable to the ground terminal No 18 In addition for connecting more than 30 m lon...

Страница 13: ...8 2 2 7 Connecting BCD Output WGA 670B 1 See 6 BCD OUTPUT OPTION 2 2 8 Connecting RS Output WGA 670B 7 See 7 RS 232C OPTION 2 2 9 Connecting TEDS Signal WGA 670B 7 See 8 TEDS OPTION ...

Страница 14: ...etting High Low Limit Press the HIGH key 2 seconds or more to activate the high limit setting mode and then set the high limit value In the same manner press the LOW key 2 seconds or more to set the low limit value See 4 2 3 Setting High Low Comparator Hysteresis 6 Adjusting External Output To activate the analog output D A output set the analog output scale value with the function F 06 To activat...

Страница 15: ...ails see the following Table 4 1 1 Table 4 1 1 Key Operation in Measuring Mode Key Operation When LOCK LED is OFF When LOCK LED is ON Press the ZERO key for 2 seconds Digital ZERO function activates to set the indication to ZERO and to return to the measuring mode No function is activated Press the HIGH key for 2 seconds High limit setting mode is activated Press the LOW key for 2 seconds Low limi...

Страница 16: ...cting mode and press the SET key to activate the selected function setting mode To set the required numerical value change the current numerical value with the SHIFT and SHIFT keys and press the SET key Then the set value is determined and stored in the memory at the same time When no numerical value is set is indicated Press the SET key in this state to activate the selected function Press the CA...

Страница 17: ...es the raw output value of the transducer F 02 Actual Load Calibration Conduct digital ZERO function with no load applied to the transducer Then apply load to the transducer Set a numerical value to be indicated at this time and press the SET key Next set a decimal point position and press the SET key Key code enable setting 00000 is indicated Here set the indication to read 00628 or 11111 and pre...

Страница 18: ...the SET key Then calibration value is updated The key code is enabled Therefore when the calibration value is updated the next time the above operation is required To disable the key code use the function F 12 Key code disable setting 00000 is indicated Press the SET key as it is Then the calibration value is updated The key code is disabled The calibration value is updated even if no key code is ...

Страница 19: ... 99 sec Sets various Hold functions For details see 4 2 5 For setting hold display mode and hold comparison mode hold modes 3 and 4 are enabled Set the delay time and then the hold operation start can be delayed by the preset time F 05 Self Check is indicated Pressing the SET key at this time lights up all the indicators to conduct checking The checked results are indicated as shown in the right I...

Страница 20: ...Select and change numerics in items 1 2 and 3 and press the SET key A function that stables the indication by smoothing varying signals issued from the transducer The smoothing function is classified into the following 3 types Number of moving averages The number of times to average the measured value Minimum scale Minimum unit that changes the indicated value Analog filter Cuts the extra high fre...

Страница 21: ...ndicated value ZERO near ZERO range If the measured value is within the ZERO near ZERO range this function automatically ZEROs the indicated value F 10 Hysteresis Set hysteresis and press the SET key Setting range 0 to 19999 A function that sets comparator hysteresis F 11 BCD Output Logic Indicates the following items 1 2 and 3 1 Number of output times 0 125 times sec 1 62 5 times sec 2 31 3 times...

Страница 22: ...t is Then the following set value returns to the factory default state The key code is disabled The set value returns to the factory default stage even if no key code is entered Factory default state Hold mode 0 0 0 Delay time 0 second Specified time 0 second Analog output 0 V with 0000 display 10 V with 4000 display Smoothing 0 0 0 Additional value 0 Auto ZERO Compensation range 0 Determination t...

Страница 23: ...er voltage It is set to 1 2 V prior to shipment F 14 TEDS ON OFF Indicates the following items 1 and 2 1 Sensitivity registration with power ON 0 OFF 1 ON 2 Digital ZERO operation with power ON 0 OFF 1 ON Select and change numerics in items 1 and 2 and press the SET key Enabled only for WGA 670B 7 A function whether or not sensitivity registration or digital Zero is conducted by reading TEDS infor...

Страница 24: ...et the indication to 0 If the additional value is set it indicates the determined additional value Note Results of this operation are maintained even if the power is turned OFF 2 Operation From the Rear Panel Short circuit rear terminals between Nos 6 and 9 to conduct digital ZERO function Digital ZERO function is conducted even if the LOCK LED is lit While short circuited since it is conducting Z...

Страница 25: ...imit value hysteresis the higher limit output becomes OFF opened When the indicated value lowers the lower limit value the lower limit output becomes ON closed On the contrary when the indicated value exceeds the lower limit value hysteresis the lower limit output becomes OFF opened For details see the following figure 2 Setting High Low Limit a Press the HIGH or LOW key for 2 seconds in the measu...

Страница 26: ...ibration mode 2 Setting Rated Output of the Transducer The currently set value is indicated and the highest order digit flickers Use the arrow keys to have the indication read 02 004 and press the SET key 3 Setting Indicated Value The currently set value is indicated and the highest order digit flickers Use the arrow keys to have the indication read 1000 and press the SET key 4 Setting Decimal Poi...

Страница 27: ...ween terminal Nos Nos 6 and 8 Hold on the rear face and the WGA 670B moves with the preset hold mode Short circuit between terminal Nos 6 and 7 RESET on the rear face and the hold mode is canceled The states of the above signals are described in figures of the respective hold modes 3 Normal Comparison Mode Hold Comparison Mode a Normal comparison mode When the indicated value exceeds the comparati...

Страница 28: ... 2 5 2 Peak Hold Mode Press the HOLD key and after the lapse of delay time the peak value is indicated until it is pressed the next time Or when the HOLD signal from the rear terminal board is turned ON close and after the lapse of delay time the peak value is indicated until the HOLD signal is turned OFF Delay time Holding HOLD LED flickers Press the HOLD SW Press the HOLD SW HOLD signal Close In...

Страница 29: ...ned ON close and after the lapse of delay time the peak value is indicated until the HOLD signal is turned OFF If the HOLD signal is turned OFF open the indicated value is kept hold When the RESET signal from the rear terminal board is turned ON close the peak hold mode is canceled Press the HOLD SW Press the HOLD SW Press the HOLD SW RESET signal Note Even if no RESET signal is issued it is reset...

Страница 30: ...he rear terminal board is turned ON close the indicated value is kept hold and after the lapse of delay time the peak value is detected When the HOLD signal is turned OFF open the peak values until then is indicated When the RESET signal from the rear terminal board is turned ON close the peak hold mode is canceled Press the HOLD SW Press the HOLD SW Press the HOLD SW RESET signal HOLD signal Clos...

Страница 31: ...rear terminal board is turned ON close and after the lapse of delay time the peak value is detected and kept hold for the preset specified time When the RESET signal from the rear terminal is turned ON close the peak hold mode is canceled Press the HOLD SW Press the HOLD SW Indicated value Delay time Holding HOLD LED flickers Detecting peak value Specified time HOLD LED ON RESET signal HOLD signal...

Страница 32: ... is turned ON close the indicated value is kept hold After the lapse of delay time the peak value is detected and indicated for the preset specified time When the RESET signal from the rear terminal board is turned ON close the hold display mode is canceled Press the HOLD SW Press the HOLD SW Indicated value Delay time Holding HOLD LED flickers Detecting peak value Specified time HOLD LED ON RESET...

Страница 33: ...ration starting from the HOLD signal ON T2 4ms Max When it is in peak hold mode and arbitrary point hold mode a period of time required for canceling the HOLD operation starting from the HOLD signal OFF T3 4ms Max When it is in block specified hold mode and time specified hold mode a period of time required for canceling the HOLD operation starting from the RESET signal ON T4 4ms Max A period of t...

Страница 34: ...ers by the hysteresis width from the high limit comparative value preset on the comparator until the high limit output becomes OFF T3 4ms Max A delay time required starting from the time when the input value exceeds by the hysteresis width from the low limit comparative value preset on the comparator until the low limit output becomes OFF T4 4ms Max A delay time required starting from the time whe...

Страница 35: ... 25 Hold output 8 Data 40 26 Peak hold output 9 Data 80 27 A 1 10 Data 100 28 Minus Polarity output 11 Data 200 29 Over output 12 Data 400 30 EOC End of Conversion output 13 Data 800 31 T 1 14 Data 1000 32 R 1 15 Data 2000 33 BCD hold input 16 Data 4000 34 BCD output prohibit input 17 Data 8000 35 C 1 18 Not used 36 COM 1 Used for adjusting the instrument at KYOWA factory prior to shipment They sh...

Страница 36: ...output times Select the desired item with arrow keys See 4 1 OPERATION FUNCTION 0 125 times sec 1 62 5 times sec 2 31 3 times sec 3 15 6 times sec 2 Setting Data Logic The center value 2 indicated with the function selecting mode F 11 describes the following BCD output logic Select either of the two with the arrow keys In addition when the signal is enabled and when the transistor is ON it is cons...

Страница 37: ...hibit input is set to L all the output transistors become OFF By controlling the output prohibit input the BDC data output of parallel connected multiple WGA 670Bs are sequentially read T1 Data output EOC signal output time Number of BCD Output Times sec T1 ms 125 8 62 5 16 31 3 32 15 6 64 T2 T3 1ms min Relation between BCD signal output and data hold signal input The HOLD signal is read at a timi...

Страница 38: ...devices 7 2 RS 232C INTERFACE This section describes details of the RS 232C interface 1 Connector Pin No and Signal Name Pin No Signal Name 1 DCD 2 RxD 3 TxD 4 DTR 5 GND 6 DSR 7 CTS 8 RTS Connector Equivalent to ESDE 9P RIN ITT Cannon made 2 Signal Specifications Transmission speed 9600bps Data bit 7 bits Parity bit Odd number parity Stop bit 1 bit Output code ASCII 1 5 6 9 ...

Страница 39: ...0B and the external devices before connection Or correct operation may not be obtained or may cause damage b Settings of external devices Set the external devices by conforming to WGA 670B signal specifications Note The WGA 670B is not corresponding to XON XOFF control and send brake signal DCD 1 RxD 2 TxD 3 DTR 4 GND 5 DSR 6 CTS 7 RTS 8 1 DCD 2 RxD 3 TxD 4 DTR 5 GND 6 DSR 7 CTS 8 RTS DCD 1 RxD 2 ...

Страница 40: ...e screen If unidentified command is received its character string is sent back with the following format W CR LF If error occurs when writing a set value to the EEPROM the following message is sent back ng CR LF Note Termination code Added at the end as the last code of the control command Termination code varies with command output and data output CR Command output to the WGA 670B CR LF Command o...

Страница 41: ...g Actual load calibration Sensitivity registering calibration Automatic sensitivity registration with TEDS Sets hold mode Set moving average Set additional value Automatic ZERO compensation Set Analog output D A output scale Sets comparator BV selection Keylock VCL EIC EID SMF SSM SZM SZT OP1 SCV SBV LCK 41 42 42 42 43 43 43 44 44 45 45 Others Initialize RS line test Reads Model name etc Sets tran...

Страница 42: ...of the key code Parameter None Return value format ok CR LF Description others Results of this command are disabled with the power OFF 2 RS Contents RS line test Format RS CR Parameter None Return value format RS 232C CR LF When normally received 3 SYS Contents Outputs Model name etc Format SYS CR Parameter None Return value format WGA 670B a xx xx yyyyyyyyy CR LF Production No Program version Mod...

Страница 43: ... indicated value has no decimal point it is filled with 0 from the head abcdefgh describes status with 1 or 0 Numeric 1 is outputted to describe the following state a Comparator H is ON b Comparator L is ON c Spare d Spare e During measurement f Detecting peak g During hold h Various errors occurred To stop the output set the mode to Mode 10 b Mode 02 return value format Mode 02 outputs the indica...

Страница 44: ...Parameter None Return Value Format D1 xxxxxx CR LF Description others Return value xxxxxx is an indicated value including a decimal point If the indicated value has no decimal point it is filled with 0 from the head 7 GST Contents Outputs the status Format GST CR Parameter None Return Value Format Sabcdefgh CR LF Description others Return value abcdefgh represents the status with 1 or 0 Numeric 1 ...

Страница 45: ... rated output value mV V b Return value of smoothing value a b c CR LF Analog filter set value Minimum resolution set value Moving average set value See SSM command c Return value of additional value 1 xxxxxx CR LF Indicates the indicated value with a decimal point If the indicated value has no decimal point it is filled with 0 from the head d Return value of hysteresis set value xxxxxx CR LF Indi...

Страница 46: ...ed according to the multiple options Contents of parameters are described in the following a BCD Data output logic b BCD EOC output logic c BCD Number of output times xxxxxx Indicated value at 0 V analog output yyyyyy Indicated value at 10 V analog output 9 GOD Contents Indicates the original value Relevant to panel operation F 01 Format GOD CR Parameter None Return value format D0 0x xxx CR LF De...

Страница 47: ...on Format EID CR Parameter None Return value format ok CR LF When error occurs E 03 CR LF Description others Among TEDS information rated capacity rated output and recommended excitation voltage are read to set sensitivity registration and excitation voltage 13 SMF Contents Set the hold mode Relevant to panel operation F 04 Format SMFa b c x xx yy yy CR Parameter a b c x xx yy yy Specified time se...

Страница 48: ...itional value Relevant to panel operation F 08 Format SZM1 xxxxxx CR Parameter xxxxxx Indicated value with a decimal point If it has no decimal point it is filled with 0 from the head Return value format ok CR LF Description others Corresponding to M command 16 SZT Contents Set automatic ZERO compensation function Relevant to panel operation F 09 Format SZTxxxxxx y y z Parameter xxxxxx y y z ZERO ...

Страница 49: ...ator Format SCVx yyyyyy CR Parameter x yyyyyy Comparative value Indicated value with a decimal point If the indicated value has no decimal point it is filled with 0 from the head Select the comparator 1 Comparator H 2 Comparator L 3 Spare 4 Spare Return value format ok CR LF Description others Corresponding to M command 19 SCV Contents Set hysteresis Relevant to panel operation F 10 Format SCV0 xx...

Страница 50: ...t to panel operation F 05 Format CHK CR Parameter None Return value format ok CR LF RAM failure E 01 CR LF Flash memory failure E 02 CR LF 23 SBV Contents Select BV Relevant to panel operation F 13 Format SBVa CR Parameter a 0 10 V 1 2 V Return value format ok CR LF Description others Corresponding to M command 24 HLD Contents Hold function Format HLD CR Parameter None Return value format ok CR LF...

Страница 51: ...ndard is available 8 2 CONNECTION Connect TEDS signal sensors to the following terminal boards Nos 21 and 22 on the rear panel as shown in the following figure Take care of the polarity of the TEDS signals and correctly connect the signals Or error occurs when reading data Error display E 03 However no sensors are damaged by connecting to wrong polarity Figure 8 1 Connecting TEDS signals TEDS Yell...

Страница 52: ...s denote the following 0 0 Digital ZERO function when the power ON 0 OFF 1 ON TEDS automatic sensitivity registration function when the power ON 0 OFF 1 ON The flickering numeric is operable Press the key as it is to indicate 1 0 Pressing the SET key indicates F 14 Then press the CANC key Now when the power is turned ON the next time automatic sensitivity registration is conducted To return to the...

Страница 53: ...e an error message E 03 may appear when conducting the automatic sensitivity registration At this time no sensitivity is registered Pressing the CANC key cancels the error display and starts the operation with already registered set value TEDS signal wires are incorrectly connected Refer to 8 2 CONNECTION and check the connected state Sensor connection is not appropriate Connect 1 to 4 sensors Len...

Страница 54: ...play mode Calibration Function Sensitivity registering calibration actual load calibration Smoothing Function Minimum scale fixing function 1 2 5 10 20 50 and 100 Auto ZERO compensation function Automatically ZEROing within the preset range Moving average 8 16 32 64 128 256 512 1024 and 2048 times Zero near zero function Automatically ZEROing within the preset range from 0 to 9 High Low Limit Comp...

Страница 55: ...AIICHI DENSHI KOGYO made RS Output Signal method RS 232C Full duplex method WGA 670B 7 Transmission method Asynchronous method Transmission speed 9600 bps Bit structure Data bit 7 Stop bit 1 Parity bit Odd number parity Connector Dsub 9 pin male Flow control Not compatible TEDS Compatible Interface Compatible with IEEE1451 4 Mixed Mode WGA 670B 7 Transducer Interface Class 2 Applicable sensors Sen...

Страница 56: ...51 9 2 OUTSIDE DRAWING 1 With No Option WGA 670B 0 ...

Страница 57: ...52 2 With BCD Option WGA 670B 1 ...

Страница 58: ...53 3 With RS TEDS Option WGA 670B 7 ...

Страница 59: ...0FL3 Indicated value is below 19999 0FL4 Indicated value is above 19999 Decrease the input signal or reset the sensor registration E 00 Sensitivity registering value is exceeding the allowable range Use the WGA 670B with indication less than 10000 per 0 1 mV V E 01 Memory RAM failure E 02 Memory EEP ROM failure Failure Contact KYOWA or our representatives for repair E 03 TEDS automatic sensitivity...

Страница 60: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

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