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displayed. The default standard weight is 100% FS. Load 10%-100%FS (this must be equal or larger than that for 

the second calibration point) weight on the scale. Use HOLD or UNIT key to input the standard weight’s value. 

Press the TARE key to confirm. The indicator will flash the input weight. If the indicator receives reasonable data, it 

will be directed to the next step automatically. If an error occurred, the scale will display “

CAL.Er

” and return 

back to step3 for re-calibration. 

6.

 

When “

CAL.P0

” is shown again, the scale will calibrate the zero-point again. Remove any weight from the scale, 

press the TARE  key to confirm; the displayed data will flash. If the indicator receives reasonable data, it will 

calculate and store all parameters into EEPROM. Then it will auto-reset and be directed to weighing mode. If an 
error occurred in calibration, the scale will display “

CAL.Er

” and then it is necessary to repeat the procedure 

from step3.   

 
 

5.

 

View ADC Code or Power Voltage 

1.

 

In normal weighing mode, press and hold HOLD/PRINT and ZERO/ON/OFF keys until “

code

” is shown, which 

means the indicator is working under display inner code mode. In this mode, you can examine the stability of the 
weighing system, the increment value of ADC code corresponding to the loaded weight, and/or power voltage to 
PCB. 
NOTE:  

1)

 

The increment of ADC code for FS weight must be larger or equal to 2 times of selected display division; 
otherwise, the calibration cannot be properly completed. E.g. the display division is 0.1kg. Load 100kg 
standard weight on the platform, the increment of A/D code is at least 2x 100kg/0.1kg= 2x1000=2000. In 
this case, the scale can be calibrated. Otherwise, smaller division need to be chosen. 

2)

 

The data should be stable; otherwise, the calibration cannot properly complete.   

2.

 

In this mode, you can calculate the proper ADC data at zero point by examining the A/D data for loaded weight. If 
the ADC increase for full capacity is NFS, the power-on zero range is set to Zp% FS and zero key range is set to 
Zk% FS. Then proper ADC data of zero point is larger than (Zp%+ Zk%) x NFS.   

3.

 

ADC increase for full capacity (NFS) can be calculated by: Load the weight W on the platform, and the ADC increase 
for W weight is Nw. The ADC increase for full capacity WFS is (NFS)= (Nw)x (WFS)/W .   

4.

 

Press the UNIT key to select displaying weight inner code or input the inner working voltage value. When “

U

 x.xx” is 

displayed, the display digit is voltage value, and the unit is V. The proper working power voltage is between 3.8V to 
8V. 

5.

 

Press the TARE key to display filtered or un-filtered weight A/D data; when the HOLD announciator is lit, the data is 

filtered. 

6.

 

Press the ZERO/ON/OFF key to exit this mode and return to normal weighing mode.   

 

 

 

 

 

 

 

 

PS

102

 

www.measuretek.net

 

.

 

5

   

Summary of Contents for PS-102

Page 1: ...W W W M E A S U R E T E K N E T PS 102 User Technical Manual Contents subject to change without notice Version 1 0 08 2013 ...

Page 2: ... FUNCTIONS 2 Indicator Display Character Definitions 2 Indicator Display 3 Function Keys 3 3 OPERATIONS 3 Normal Weighing Mode 3 ZERO 4 Setting a Tare Weight 4 4 Calibration 4 5 View ADC Code or Power Voltage 5 6 Configuration Parameters Setup 6 7 User Parameters Setup 10 8 Symbol Definitions 14 9 Trouble shooting 14 10 Replacement Parts 15 11 One Year Limited Warranty 16 ...

Page 3: ...efore weighing Electronic scales are precision instruments Do not operate near cell phones radios computers or other electronic devices that emit radio frequencies that may cause unstable readings Avoid using in heavy vibration or heavy airflow conditions Specifications Model 12R980 PS 102 75 12R981 PS 102 200 Max Capacity 165lb 75kg 440lb 200kg Readability 0 1lb 0 05kg 0 2lb 0 1kg Display Resolut...

Page 4: ...or 4 pins socket Base Installation 1 Take the base and indicator out of the package connect the indicator cable plug to the base cable plug 2 Place the scale on a hard flat and level surface 3 Adjust the feet to level the scale 4 Install the batteries or plug in the adapter Now the scale is ready for use 2 OVERVIEW OF CONTROLS AND FUNCTIONS Indicator Display Character Definitions PS 102 www measur...

Page 5: ... the weight TARE Setup or Calibration mode Confirm the input data and forwards to next step 3 seconds Zero the platform weight Weighing mode 3 seconds Power off the scale ON OFF ZERO Setup or Calibration mode Exit to normal weighing mode ON OFF ZERO UNIT Weighing mode more than 3 seconds Enter user parameter setup mode ON OFF ZERO TARE Weighing mode more than 3 seconds Enter calibration mode 3 OPE...

Page 6: ...e following steps press the ZERO ON OFF key to exit the calibration mode 1 Remove all weight from the scale Under normal weighing mode press and hold TARE and ZERO ON OFF keys for more than 4 seconds to enter calibration mode 2 The indicator will show CAL which means the scale is ready for calibration Press the TARE key to confirm and continue into calibration mode 3 When CAL P0 is displayed the s...

Page 7: ...d or power voltage to PCB NOTE 1 The increment of ADC code for FS weight must be larger or equal to 2 times of selected display division otherwise the calibration cannot be properly completed E g the display division is 0 1kg Load 100kg standard weight on the platform the increment of A D code is at least 2x 100kg 0 1kg 2x1000 2000 In this case the scale can be calibrated Otherwise smaller divisio...

Page 8: ...if main unit is kg or lb then second unit is lb or kg 100 25000 Note it must be equal or less than 1 25 C1 1500 2000 C3 0 Division select 0 1 1 2 2 5 0 1 C4 0 Decimal point 0 x1 1 x0 1 2 x0 01 3 x0 001 4 x0 0001 5 x10 1 1 C5 0 Main weight unit Calibration and setting capacity weight units 0 kg 1 lb 1 1 C6 6 Weight Units that can be chosen by UNIT key 0 kg 1 lb 2 lb oz 3 kg lb 4 kg lb oz 5 lb lb oz...

Page 9: ...ale is powered on and current weight signal is NOT within the power on zero point range 0 Prompt power on zero point is over range 1 Current weight 2 Calibration zero point 3 Power off zero point power off tare weight as current tare weight 0 0 C11 6 Zero tracking range 0 no tracking 1 0 25d 2 0 5d 3 1d 4 1 5d 5 2d 6 3d 7 4d 8 5d 9 6d 6 6 C12 2 Digital filter intensity 0 very weak 1 weak 2 middle ...

Page 10: ... 20kg 20kg 50 lb Not available 0 0005kg 0 0005kg 0 001 lb Not available 0 005kg 0 005kg 0 01 lb 0 2 oz 0 05kg 0 05kg 0 1 lb 2oz 0 5kg 0 5kg 1 lb Not available 5kg 5kg 10 lb Not available 50kg 50kg Not available Not available Table2 use LB as calibration unit Display division value in different weight unit that can be used Calibration division value Kg lb Lb oz 0 0001lb Not available 0 0001lb Not a...

Page 11: ...The capacity is determined by C1 and d If C1 3000 d 0 05lb then C1xd 3000x0 05lb 150 00lb So the capacity FS is 150 00lb 4 3 Operation on C16 If you need to recover all configuration and user parameters to their default value modify the 0 to 1 when C16 0 is shown then press the TARE key to confirm The indicator will display dEF and is flashed press the TARE key to confirm then dEF will flash to in...

Page 12: ... on 2 Backlight is auto on and auto off The backlight will auto off after 10 seconds of stable weigh or no key operation and it will auto on when the scale weight is unstable or key operation is occurring 2 U3 2 HOLD PRINT key function set 0 HOLD 1 PRINT 2 HOLD and PRINT 2 U4 0 Hold function mode 0 no hold function 1 hold larger weight reading 2 50 when weight is more than 10d and the variety is w...

Page 13: ...unit and current status data The format is as follows LF Gross reading minus decimal point unit CR LF Tare reading decimal point unit CR LF Net reading minus decimal point unit CR LF H1H2H3 CR ETX The number of bytes used Weight reading 8bytes Minus 1byte Decimal point 1byte Weight unit 2 or 5 bytes Current status H1 H2 H3 3bytes 4 U5 3 Continuously output of the current displayed reading weight u...

Page 14: ...r a space character for positive weight Minus sign follow after the first digit 5 Useless leading zeros before digits are suppressed c Key to symbols used LF Line Feed character hex 0AH CR Carriage Return character hex 0DH ETX End of Text character hex 03 SP Space hex 20H H1H2H3 Three status bytes p Polarity character including minus sign for negative weight and a space character for positive weig...

Page 15: ...r to pressing and holding the ZERO ON OFF key for 4 seconds 8 Command all others Response LF CR ETX Unrecognized command e Additional Commands and Responses for Scale Base Application 1 Command F CR 46h 0dh to restore factory calibration data Response LF OK H1H2H3 CR ETX 2 Command O CR 4Fh 0dh zero point calibration Response LF OK H1H2H3 CR ETX if zero calibration is sufficient LF H1H2H3 CR ETX if...

Page 16: ...full capacity will be displayed Cx y No x configuration parameter is set to y Ux y No x user parameter is set to y Lo bAt Battery voltage is below 3 6V 9 Trouble shooting SYMPTOM PROBABLE CAUSE REMEDY Does not turn on 1 AC adapter is not securely connected 2 Low battery 3 Indicator is damaged 1 Re plug the AC adapter or rotate the plug to securely connect to the scale 2 Replace the batteries 3 Rep...

Page 17: ... not correctly set Re set USER parameters per the Technical Manual CAL Er 1 Input data or loaded weight is too small too big 2 Weight signal is unstable un linear 1 Input correct data load correct weight onto platform 2 Return the scale for repair Cannot zero the display 1 Load on scale exceeds allowable limits 20 FS 2 Load on the scale is unstable 1 Remove load from the scale 2 Wait for the load ...

Page 18: ...y excluded Any product which is determined to be defective in material or workmanship within this time period may as the exclusive remedy be returned to an authorized MeasureTek distributor or service center freight prepaid with prior return authorization to be repaired or replaced at the manufacturer s option MeasureTek s liability under this warranty is limited to the repair or replacement of th...

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