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A&D AD-4531B, Instruction Manual

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A&D AD-4531B Instruction Manual Download Page 19

 

19 

 

Type 

Advantages 

Disadvantages 

Description 

6-wire connection 

(recommended) 

The error is small 
even when the load 
cell cable is 
extended, a thin load 
cell cable is used, or 
multiple load cells 
are used. 

Complicated wiring 

Use a 6-wire 
shielded cable when 
a summing box is 
used. 

4-wire connection  Simple wiring 

The influence of the 
load cell cable 
resistance worsens 
the temperature 
coefficient. 
Prone to the 
influence of the 
contact resistance of 
the connector 

The error increases 
when the load cell 
cable is extended or 
multiple load cells 
are used. 

 

Precautions on performing the 4-wire connection 

  Be sure to connect terminals 7 and 6 (EXC+ and SEN+) and terminals 5 and 4 

(SEN- and EXC-). 

  If the cable needs extending, use a cable with as large a cross-sectional area as 

possible or keep the cable as short as possible. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for AD-4531B

Page 1: ...4 4 45 5 53 3 31 1 1B B B D D Di i ig g gi i it t ta a al l l I I In n nd d di i ic c ca a at t to o or r r I I IN N NS S ST T TR R RU U UC C CT T TI I IO O ON N N M M MA A AN N NU U UA A AL L L 1WMP...

Page 2: ...rical shock Do not touch the part where the symbol is placed This symbol indicates the ground terminal This symbol indicates information useful to the user for operation of the device 2014 A D Company...

Page 3: ...ntrol input section 16 5 3 Equivalent circuit diagram of the control output section 17 5 4 Attaching the connector 17 5 5 Load cell connection 18 6 COMPONENTS AND FUNCTIONS 20 6 1 Flowchart 20 6 2 Des...

Page 4: ...of the comparator mode 39 12 4 Hysteresis 40 13 ANALOG OUTPUT 43 13 1 Analog voltage DAV 0V to 10V 43 13 2 Analog current DAI 4mA to 20mA 43 14 SERIAL INPUT AND OUTPUT 44 14 1 Data output format 44 1...

Page 5: ...rement point as zero and displays the deviation from this zero point When weighing a load it can be used as the tare etc The zero value is saved in non volatile memory EEPROM and is maintained even if...

Page 6: ...erminals Connect only a non inductive load of 510 or less to the analog current output terminals When connecting long cables to the sensors keep the cables away from power cables and other sources of...

Page 7: ...mmediately after it is disconnected from the power supply To avoid electrical shock do not touch the internal part of the instrument within ten seconds after disconnecting from the power supply Be sur...

Page 8: ...ision Approx 16 000 000 counts Sampling rate 100 times second Display range 999999 to 999999 Linearity Within 0 005 F S 1 digit Temperature coefficient Zero drift 0 1 V C typ Span drift 8 ppm C typ Op...

Page 9: ...ets the zero state at power on Digital filter function Cutoff frequency range 0 7 to 11 Hz Comparator function HI OK or LO is determined by setting the upper or lower limit value Hold function Select...

Page 10: ...g life 5 000 000 times or more Electrical operating life 100 000 times or more Resistive load 4 pin connector included HI OK LO COM RS 485 Conforms to EIA RS 485 AD4530 030 Number of drops Up to 31 AD...

Page 11: ...cure the case 3 Pull the case out from the front panel holding it as shown 4 Remove unnecessary blank panels with nippers etc 5 Insert the option board at the position specified on the rear of the fro...

Page 12: ...sign 4 2 Status indicators Name Description 1 HI Turns on when the measured value is greater than the upper limit HI 2 OK Turns on when the measured value is equal to or greater than the lower limit a...

Page 13: ...calibration mode Press to proceed to the function selection mode Press to proceed to the selection mode in the check mode The digital zero function sets a desired measurement point as zero and display...

Page 14: ...Keep cables away from power cables and other sources of electrical noise 5 1 2 Load cell connector 1 SHLD Connect the shielded cable of the sensor cable 2 SIG Negative signal input terminal for the se...

Page 15: ...ue is less than the lower limit 3 OK Relay OK output terminal Outputs OK when the measured value is equal to or greater than the lower limit and equal to or less than the upper limit 4 HI Relay HI out...

Page 16: ...e control input section When connecting the input terminal Select a switching element of the non voltage input type such as a mechanical contact or semiconductor contact Use the leakage of the switchi...

Page 17: ...options connectors Load cell and control input output connectors Pitch 5 08 mm Pitch 3 50 mm Wire size 12 to 24 AWG Wire size 16 to 28 AWG Stripping length 6 to 7 mm Stripping length 6 to 7 mm Tighte...

Page 18: ...ction are available 6 wire connection and 4 wire connection For high precision and stable measurement 6 wire connection is recommended 6 wire connection 1 SHLD 2 SIG 3 SIG 4 EXC 5 SEN 6 SEN 7 EXC 4 wi...

Page 19: ...ng The influence of the load cell cable resistance worsens the temperature coefficient Prone to the influence of the contact resistance of the connector The error increases when the load cell cable is...

Page 20: ...executed 6 1 Flowchart Input from sensor A D conversion Digital filter Measured value Hold Comparator Relay output Analog output External input Option Latch Comparator indication Key operation Control...

Page 21: ...external LATCH input The latch operation occurs after processing the hold operation 6 2 5 Comparator function The comparator function compares the measured value against the limit values displays the...

Page 22: ...libration maintain a stable environment to prevent calibration errors When the measured value is stable the HOLD LED is turned on The decimal point blinks to indicate that the current value is not a m...

Page 23: ...and proceed to the storing mode Cancel span calibration and proceed to the storing mode After span calibration the AD 4531B displays the mV V value of span calibration for 3 seconds and then proceeds...

Page 24: ...e rated capacity Use a proper calibration weight C e5 The value of the calibration weight is less than the minimum division C e6 The load cell sensitivity is insufficient Confirm the load cell connect...

Page 25: ...ent output f3 f4 Serial communication function Use this function to set the RS 232C or RS 485 Set the zero point input voltage Cf 04 the span input voltage Cf 05 and the displayed value for the span i...

Page 26: ...on selection mode Cancel the setting and return to the function selection mode Digital input method Change the blinking digit only Move the digit to be changed to the right Change the value of the bli...

Page 27: ...Displayed value for input voltage of span Displayed value for span measurement point zero point Decimal point position depends on Cf 01 32000 D Cf 07 0 to 100 Zero adjustment range Range to enable zer...

Page 28: ...old averaging time Set by the unit of 0 1 second When 0 0 averaging is not performed 0 0 D f0 06 0000 to 1111 LATCH function Function corresponds to an external input latch Setting and latch Assignmen...

Page 29: ...3 Downward 2 level judgment 2 P f1 06 0 0 to 5 0 Hysteresis time Set the hysteresis time by the unit of 0 1 second When 0 0 the hysteresis mode is not used 0 0 D f1 07 00 to 99 Hysteresis width Set t...

Page 30: ...R 1 P f3 06 1 to 6 Output mode 1 Stream mode 2 Manual print mode 3 Auto print mode Outputs data once when the measured value exceeds the zero band and is stabilized for the first time 4 Auto print mod...

Page 31: ...splay Cause Remedy ad e The data can not be acquired from A D converter Repair is required eepe Correct data cannot be read from EEPROM Perform initialization If the initialization does not clear the...

Page 32: ...I O input Whether the DZ function is ON or OFF depends on the operation of the zero terminal of the I O input When the zero terminal is on connected to the COM terminal the DZ function is turned on an...

Page 33: ...e It is a useful function in case of a power failure 9 5 Backup of DZ The DZ value is saved in non volatile memory EEPROM Writing up to 10 000 000 times is available so keep track of use frequency If...

Page 34: ...n the hold mode pressing the key again cancels the hold function and the AD 4531B displays the measured value 10 1 2 Operation using the external input hold terminal When the external hold input termi...

Page 35: ...cified range during the hold function the display becomes blank Note that functions such as the comparator or output are processed based on the hold data 10 5 Hold modes 10 5 1 Sample hold mode Holds...

Page 36: ...External input STOP Sensor input Displayed value key External input Hold External input START External input STOP 10 5 3 Bottom hold mode Holds the bottom value when receiving a hold input 10 5 4 Bipo...

Page 37: ...input LATCH During the latching operation 11 LATCH The AD 4531B can latch the displayed and output values specified by the function f0 06 in response to the external LATCH input The latch operation oc...

Page 38: ...nd lower limit values can be negative For example if the upper limit value is 1000 and the lower limit value is 2000 HI is output for the measured value of 500 and LO is output for the measured value...

Page 39: ...cancel the setting and return to the measurement mode The decimal point blinks to indicate that the current value is not a measured value 12 3 Example of the comparator mode Continuous comparison excl...

Page 40: ...ween HI and OK When the measured value exceeds the upper limit value HI is output immediately Even if the measured value falls below the upper limit value OK is not output immediately OK will be outpu...

Page 41: ...lue falls below the hysteresis width or when the hysteresis time has elapsed Relation between LO and OK When the measured value falls below the lower limit value LO is output immediately Even if the m...

Page 42: ...alue exceeds the hysteresis width or when the hysteresis time has elapsed Relation between LO and OK When the measured value falls below the lower limit value LO is output immediately Even if the meas...

Page 43: ...analog voltage DAV 0V to 10V or an analog current DAI 4mA to 20mA f2 01 to f2 04 13 1 Analog voltage DAV 0V to 10V 13 2 Analog current DAI 4mA to 20mA 10V 0V Output voltage f2 02b f2 01a f2 02a f2 01...

Page 44: ...Terminator Terminator for output data Select either C R L F or C R with f3 05 Data output format example When the measured value is within the displayable range with decimal point WT 0123 45kgC R L F...

Page 45: ...Command example RC R L F Response example WT 0123 45C R L F For details about the response refer to 14 1 Data output format 14 2 2 Zero command Perform zero operation Command Z Command example ZC R L...

Page 46: ...nse example CSC R L F 14 2 7 Function reading command Confirm the function setting Query function number four characters Command example F123C R L F Response example F123 456789C R L F 14 2 8 Function...

Page 47: ...e at zero point calibration exceeds in the positive direction Confirm the rating and connection of the load cell C e3 Voltage at zero point calibration exceeds in the negative direction C e4 The value...

Page 48: ...e the item to be checked Enter the check mode Return to the measurement mode 15 2 2 Checking the display Check the display by turning on each segment and the individual LEDs All on Turn on by digit Tu...

Page 49: ...ustment mode When 0V or 10V hold for 5 seconds Proceed to the selection mode Refer to 15 2 1 The output voltage can be finely adjusted using the fine adjustment mode 15 2 6 Checking the DAI value Chec...

Page 50: ...the output with the adjustment range If the blinking digit is 0 the digit will be 9 and the next higher order digit will decrease by 1 Set and save the output Return to the previous mode For fine adju...

Page 51: ...ngth parity stop bit and terminator of the setting are displayed Output the data Proceed to the selection mode Refer to 15 2 1 15 2 9 Checking the keys Check the state of each key Ones digit 0 1 Tens...

Page 52: ...initialized inif Initialize the F functions iniC Initialize the F functions and CF functions inia Initialize the F functions and CF functions Initialize the DAV and DAI adjustment data Select what to...

Page 53: ...oint mV V 0 00000 Cf 05 0 00001 to 9 99999 Input voltage from the load cell at span mV V 3 20000 Cf 06 999999 to 999999 Displayed value for span measurement point zero point Decimal point position dep...

Page 54: ...nd 20 f0 04 0 to 4 Hold mode 0 Off 3 Bottom hold 1 Sample hold 4 Bipolar peak hold 2 Peak hold 1 f0 05 0 0 to 9 9 Hold averaging time Set by the unit of 0 1 second When 0 0 averaging is not performed...

Page 55: ...t 2 Upper lower limit judgment 3 Downward 2 level judgment 2 f1 06 0 0 to 5 0 Hysteresis time Unit 0 1 second When 0 0 the hysteresis mode is not used 0 0 f1 07 00 to 99 Hysteresis width Unit d When 0...

Page 56: ...CR 0D LF 0A 2 CR 1 f3 06 1 to 6 Output mode 1 Stream 2 Manual print mode 3 Auto print mode Outputs data once when the measured value exceeds the zero range and is stabilized for the first time 4 Auto...

Page 57: ...etting range Description Default value User setting f4 00 0 to 4 Unit 0 Specify the unit character f4 01 to f4 05 1 kg 3 t 2 g 4 Ib 1 f4 01 f4 02 f4 03 f4 04 f4 05 00 to 7F Unit character 5 character...

Page 58: ...58 17 EXTERNAL DIMENSIONS Top Side Front Panel cutout dimensions Spacing Maintain the intervals above when installing UNIT mm 45 0 6 0 92 0 8 0 MIN 120 MIN 70...

Page 59: ...Blank...

Page 60: ...South Australia 5031 AUSTRALIA Telephone 61 8 8301 8100 Fax 61 8 8352 7409 A D KOREA Limited 6 33 817 07331 817 Manhattan Bldg 33 Gukjegeumyung ro 6 gil Yeongdeungpo gu Seoul 07331 Korea 82 2 780 4101...

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