Measuretek PS-102, PS-102-75, PS-102-200 Technical Manual

Download

WWW.MEASURETEK.NET

PS-102

User/Technical Manual

Contents subject to change without notice

Version 1.0

08/2013

TABLE OF CONTENTS

1. INTRODUCTION and INSTALLATION ..................................................................................................................... 1

General and Safety Information ...............................................................................................................................................................

Specifications............................................................................................................................................................................................

Contents....................................................................................................................................................................................................

Connection types......................................................................................................................................................................................

Installation ................................................................................................................................................................................................

2. OVERVIEW OF CONTROLS AND FUNCTIONS......................................................................................................... 2

Indicator Display Character Definitions ....................................................................................................................................................

Indicator Display.......................................................................................................................................................................................

Function Keys ...........................................................................................................................................................................................

3. OPERATIONS....................................................................................................................................................... 3

Normal Weighing Mode ............................................................................................................................................................................

ZERO.........................................................................................................................................................................................................

Setting a Tare Weight................................................................................................................................................................................

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

1. INTRODUCTION and INSTALLATION

General and Safety Information

 Risk of Electrical Shock: Disconnect all power sources before making cable connections to the scale

platform or indicator.

 For use in dry environments only.

 Do not operate in hazardous areas.  Read and understand all operating instructions before using this product. Keep this manual for future reference.  Record the weight shortly after placing a load on the platform. After extended periods, the load cell’s output signal

may result in a less accurate reading.

 Place the scale on a hard, flat, and level surface before using.  Avoid extended exposure to extreme heat or cold. Optimum operation is at normal room temperature. See operating

temperature range in the specifications table. Allow the scale to acclimate to room temperature before using.

 Allow sufficient warm up time. Turn the scale on and allow up to 2 minutes for internal components to stabilize before

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 Resolution 1:1650 1:2200

Construction Epoxy painted carbon steel, Stainless steel platform

Weighing Units lb / lb:oz / kg

Calibration unit lb / kg

Application Modes Weighing

Display 0.58” (15mm) 7-segment LCD, 51/2 digits Zero Range +20% of full capacity Tar e Range Full capacity

Stabilization Time <3 seconds

Operating Temp. 40° to 105°F (5° to 40°C)

Humidity Range <90% relative humidity, non-condensing

Power supply:

Alkaline Batteries: 4 x “AAA” size cells

AC Adapter: 6Vdc/500mA, with central positive

USB

Interface USB

Feet Adjustable height

Safe Max Overload 150% of capacity

Indicator Dimensions 5.73x2.08x0.71” (L x W x H) / 145.5x53x18mm (L x W x H)

Base Dimensions 20.5x15.75x2.56” (L x W x H) / 500x400x65mm(L x W x H)

PS‐102 www.measuretek.net .1

Contents

 Indicator  Base  AC120V/DC6V 500mA UL adapter  6’ USB Cable  Quick Guide & Technical Manual

Connection types

4 pins socket used:

Pin1: Excitation + Pin2: Signal +

Pin3: Excitation –

Pin4: Signal -

（4 holes socket）

Indicator

（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.measuretek.net .2

Indicator Display

 >0<- Scale is zeroed and gross weight is 0, tare is 0.  Net - Display reading is net weight; tare is not 0.  lb, kg, oz - Unit of measure.  Hold - Scale is in dynamic weighing mode.

- Hold flashes - actual fluctuating weight is displayed.

- Hold does not flash - locked weight is displayed.

Function Keys

KEY MODE DEFINITION

<3 seconds Send output data via the USB port

Weighing mode

>3 seconds Enter or exits HOLD mode

PRINT/HOLD

Setup or Calibration mode Shift the flashing data entry position from right to left

Weighing mode Select weight unit of measure

UNIT

Setup/Calibration mode Increase the digit in the flashing data entry position by 1

Weighing mode Tare 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. OPERATIONS

Normal Weighing Mode

1. Power on the scale by pressing the ZERO/ON/OFF key.

2. When the display stabilizes, but it doesn’t show zero, press ZERO/ON/OFF to set new zero point.

3. Place objects on the scale platform and read the weight on the indicator.

Note: Objects should be placed at the center of the platform. Corner or side loading heavy objects may risk overloading an individual load cell and damage the scale.

Yes No No

PS‐102 www.measuretek.net .3

4. To change the weight unit of measure, press the UNIT key.

5. To send data to another device via the serial port, press the PRINT/HOLD key.

6. To hold the weight data, press and hold the PRINT/HOLD key for 4 seconds.

7. Power off the scale by pressing and holding the ZERO/ON/OFF key for 4 seconds.

ZERO

If the display dose not shows 0, and there is nothing on the platter, press the ZERO/ON/OFF key to zero the reading. Zero range: ±20% * full Capacity. The zero function is unavailable when the displayed reading is out of the zero range and the indicator will show the error message 0﹉﹉﹉ or 0﹍﹍﹍, meaning the scale is over or under zero range.

Setting a Tare Weight

1. Zero the scale as described above.

2. Place an empty container on the platform, press the TARE key. The display will return to zero, eliminating the weight

of the container. The NET announciator will be lit on the display.

3. Place the material or object to be weighed in the container. The net weight will be displayed.

4. To exit tare mode, remove all weight from the scale. The display will show a negative weight. Press the TARE key to

return the display to zero.

4. Calibration

Note:

(1) Before calibrating the scale, pls prepare standard weights (more than 10% of FS weight) for calibration. (2) In the 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 scale will begin to calibrate the zero-point of the scale. Press the TARE key to

confirm, or press the ZERO/ON/OFF to exit this mode. After getting the reasonable zero-point data, the indicator will automatically be directed to the next step.

4. When “CAL.P1” is displayed, the scale will be calibrated on second calibration point. xxxxxx kg (or lb) will be

displayed. The default standard weight is 50%FS. Load 5%-100%FS weight on the scale, and use HOLD or UNIT keys to input the loaded weight. Press the TARE key to confirm your input and the indicator will flash the input standard weight. After the scale becomes stable and receives the ADC's data corresponding to the standard

weights, and, if the data is reasonable and acceptable, the indicator will automatically be directed to next step. If the second point cannot be calibrated correctly, it will display “

CAL.Er” and return back to step3 for

re-calibration.

5. When “CAL.P2”is displayed, the scale will be calibrated on third calibration point. xxxxxx kg (or lb) will be

PS‐102 www.measuretek.net .4

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

6. Configuration Parameters Setup

1. When the scale is off, press and hold the ZERO/ON/OFF and PRINT/HOLD keys until ‘C0NF’ is shown, which

indicates that the scale is in Configuration parameter setup mode.

2. During setup mode, press the UNIT key to change the flashed digits, and use the HOLD/PRINT key to shift the

flashed position. Press the TARE key to confirm the flashed digits. Press the ZERO/ON/OFF key to exit this mode.

3. Summary of Configuration Parameters Setting:

Parameter

Default Setting

12R977

setting

12R979

setting

C1 3000

Display Resolution for main weight unit: 100–20000

1650 2200

C2 3307

Display Resolution for second weight unit (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; 6-kg/lb/lb:oz; (The limitation of units that can be used, refer to Table1 and Table2)

6 6

C7 9

Power-on zero-point range: 0 - calibration zero -point ±1%FS; 1 - calibration zero –point ±2%FS; 2 - calibration zero –point ±3%FS; 3 - calibration zero –point ±4%FS; 4 - calibration zero –point ±5%FS; 5 - calibration zero –point ±10%FS; 6 - calibration zero –point ±20%FS; 7 - calibration zero –point ±50%FS; 8 - calibration zero –point ±100%FS; 9 - no limitation;

9 9

PS‐102 www.measuretek.net .6

PS‐102 www.measuretek.net .7

C8 2

Zero range for ZERO/ON/OFF key: 0 –power-on zero -point ±1%FS; 1 - power-on zero –point ±2%FS; 2 - power-on zero –point ±3%FS; 3 - power-on zero –point ±4%FS; 4 - power-on zero –point ±5%FS; 5 - power-on zero –point ±10%FS; 6 - power-on zero –point ±20%FS; 7 - power-on zero –point ±50%FS; 8 - power-on zero –point ±100%FS; 9 - no limitation;

6 6

Parameter

Default Setting

12R977

setting

12R979

setting

C9 0

Select which zero point will be used after scale is powered on and current weight signal is within the power-on zero-point range: 0 - Current weight; 1 - Calibration zero point; 2 - Power-off zero-point (power-off tare weight as current tare weight).

0 0

C10 0

Select which zero point will be used after scale 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, 3=strong

2 2

C13 5

Motion check range: 0=±0.25d; 1=±0.5d; 2=±1d; 3=±1.5d; 4=±2d; 5=±3d; 6=±4d; 7=±5d; 8=±6d; 9=±7d;

4 4

C14 1

Max. weight Display: 0=FS+0d; 1=FS+9d; 2=101%FS; 3=102%FS; 4=105%FS; 5=110%FS; 6=120%FS; 7=150%FS; 8=200%FS; 9= No limitation

1 1

C15 0

0=BMI function is disable 1=BMI function is enable

0 0

C16 0

0=not recover parameters (Cxx & Uxx) to default set 1= recover all parameters to default setting

0 0

CONFIG settings should only be performed by individuals with the required

knowledge.

technical

Table1: use Kg as calibration unit:

Display division value in different weight unit that can be used

Calibration division value

kg lb lb:oz

0.0001kg 0.0001kg 0.0002lb Not available

0.001kg 0.001kg 0.002lb Not available

0.01kg 0.01kg 0.02lb 0.5oz

0.1kg 0.1kg 0.2lb 5 oz 1kg 1kg 2lb Not available

10kg 10kg 20 lb Not available

0.0002kg 0.0002kg 0.0005 lb Not available

0.002kg 0.002kg 0.005 lb 0.1 oz

0.02kg 0.02kg 0.05 lb 1 oz

0.2kg 0.2kg 0.5 lb Not available 2kg 2kg 5 lb Not available

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 available

0.001 lb 0.0005 kg 0.001 lb Not available

0.01 lb 0.005 kg 0.01 lb 0.2 oz

0.1 lb 0.05 kg 0.1 lb 2 oz 1 lb 0.5 kg 1 lb Not available

10 lb 5 kg 10 lb Not available

0.0002 lb 0.0001 kg 0.0002 lb Not available

0.002 lb 0.001 kg 0.002 lb Not available

PS‐102 www.measuretek.net .8

0.02 lb 0.01 kg 0.02 lb 0.5 oz

0.2 lb 0.1 kg 0.2 lb 5 oz 2 lb 1 kg 2 lb Not available

20 lb 10 kg 20 lb Not available

0.0005 lb 0.0002 kg 0.0005 lb Not available

0.005 lb 0.002 kg 0.005 lb 0.1 oz

0.05 lb 0.02 kg 0.05 lb 1 oz

0.5 lb 0.2 kg 0.5 lb Not available 5 lb 2 kg 5 lb Not available

50 lb 20 kg 50 lb Not available

4. More Information for Configuration Parameters:

4.1 The division (d) of scale is determined by C3,C4 and C5 :

If C3=3 (interval is 5), C4=2(decimal point is x.xx), C5=1(unit is lb), Then C3xC4xC5=5x0.01xlb=0.05lb, So, d=0.05lb

4.2 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 indicate recovery processing; “C16 0” will be displayed when the processing is complete. When the indicator displays “dEF.?” and “?” is flashed, press the ZERO/ON/OFF key to exit this mode and not to recover parameters.

NOTE: Different settings of the Configuration Parameters can result in the scale have a different performance!

PS‐102 www.measuretek.net .9

7. User Parameters Setup

1. In normal weighing mode, press UNIT and ZERO/ON/OFF until “USer” is shown to enter into the user

parameters setup mode.

2. During this mode, press the UNIT key to change the flashed digits, press the HOLD/PRINT key to shift the

flashed position. Press the TARE key to confirm and save the set data and enter next setting. Press the ZERO/ON/OFF key to exit this mode.

3. Summary of User Parameters Setting:

Parameter Default Setting

12R975~12R979

setting

U1 05

Auto-off time: 0: no auto-off function; 01-15: when no weight change or no key operation is occuring, the scale will auto power off after 1-15 minutes.

U2 2

Backlight on-off mode option : 0= Backlight is always off; 1= Backlight is always 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.

U3 2

HOLD/PRINT key function set: 0=HOLD, 1=PRINT; 2=HOLD and PRINT

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 within ±2d～

±50d, hold stable weight; When weight is below 10d and then over 10d and becomes stable, the new stable weight will be held.

U5 0

Serial communication output format: 0=communication is disabled 1=output stable weight, unit and status data after PRINT pressed,

data has been not received;

2=output gross, tare, net weight, unit and status data after PRINT

pressed; data has not been received;

3=continuously output displayed weight, unit and status data, data

has not been received;

PS‐102 www.measuretek.net .10

4=continuously output gross, tare, net weight, unit and status data,

data has not been received;

5=output weight, unit and status data one time when scale becomes

stable;

6=output gross, tare, net weight, unit and status data one time when

scale becomes stable;

7=Command –response mode.

U6 3

Baud rate for Serial communication: 0=1200，1=2400，2=4800；3=9600；4=19200

U7 0

Serial communication data format: 0=8N1；1=7O1；2=7E1

4. More Information for User Parameters Setting:

U5 to set serial communication output format:

(1). U5=0: No serial communication function. It will not transmit or receive any data even if the scale is

installed with serial communication hardware. Serial communication function can be only activated when the scale is in normal weighing mode.

(2). U5=1: Press PRINT key, the scale will output the current stable weight, weight unit, and current Status

data ; it does not received any data. The output format is as below:

(3). U5=2: Press PRINT key, the scale will output the data of stable gross, tare, net weight, weight 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 unit and current status data, it does

not receive any data. The output format is same as U5=1.

(5). U5=4: Continuously output of the current gross weight, tare weight, net weight data, weight unit and

current status data, it does not receive any data. The output format is same as U5=2.

(6). U5=5: When the scale is stable, it will output the current displayed reading ,weight unit, and current

status data automatically one time, it does not receive any data. The output format is same as U5=1.

(7). U5=6: When the scale is stable, it will output the current gross weight, tare weight, net weight unit and

current status data automatically one time, it does not receive any data. The output format is same as U5=2.

(8). U5=7: Bio-Serial Communication: after receiving an available command, the indicator will send out the

corresponding messages.

5. More Details About Serial Communication

PS‐102 www.measuretek.net .11

The following details contain more information when U5 is set to 7:

a) The baud rate and data format is set by U6 and U7. Responses to serial commands will be immediate, or

within one weight measure cycle of the scale. One second is adequate for use as a time-out value by remote (controlling) device.

b) The length of the weight field will be 8 digit weight data, one for minus sign, one for decimal point, two for

measure unit (e.g. “lb”, “kg”). If the unit is lb:oz, another two for “lb” and one for a space (<sp>) after lb. Units of measure abbreviations are always lower case.

(1). If the weight is overcapacity, the scale will return ten ‘^’ characters (the field of minus sign, decimal

point, weight data is filled by ‘^’).

(2). If the weight is under capacity, it will return ten ‘_’ characters (the field of minus sign, decimal point, and

weight data is filled by ‘_’).

(3). If the zero point has an error, it will return ten ‘_’ characters. (4). The character will be ‘-’ for negative weight or 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 weight W1-W8 : Weight data <dp> : Decimal point U1U2 : Measure units, “kg”, “lb”, or “lb oz”

d) Commands and responses

(1). Command: W<CR> (57h 0dh)

Response: ① over capacity:

② under capacity:

③ zero-point error:

Note: If the weight unit is lb: oz, U1U2= “lb oz” in above item ①②③.

④ Normal weight is displayed, current weight unit is kg or lb, decimal point position is set by C4:

⑤ Normal weight is displayed, current weight unit is lb:oz,

(2). Command: S<CR> (53h 0dh)

Response: <LF> H1H2H3<CR><ETX>

(3). Command: Z<CR> (5ah 0dh)

PS‐102 www.measuretek.net .12

Response: <LF>H1H2H3<CR><ETX> Zero function is activated and then it returns to current scale status, similar to pressing ZERO key. If ZERO function cannot be activated, it will return to current scale status.

(4). Command: T<CR> (54h 0dh)

Response: <LF> H1H2H3<CR><ETX> TARE function is activated, and it returns to current scale status, similar to pressing the TARE key. If TARE function cannot be activated, it will return to current scale status.

(5). Command: U<CR> (55h 0dh)

Response: <LF>u1u2<CR><LF> H1H2H3<CR><ETX> Changes units of measure and return scale status with new units , similar to pressing the UNIT key. The new measure unit should be allowed to use as a C5 setting. If the weight unit is lb:oz, U1U2= “lb oz”

(6). Command: L<CR> (4ch 0dh)

Response: <LF> H1H2H3<CR><ETX> If HOLD function is enabled, go to or exit from HOLD mode, similar to pressing the HOLD key.

(7). Command: X<CR> (58h 0dh)

Response: NONE Power off the scale, similar 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 zero calibration resulted in an error

(3). Command: H<CR> (48h 0dh) --- weight calibration

Response: <LF>OK H1H2H3<CR><ETX> --- if weight calibration is sufficient <LF> H1H2H3<CR><ETX> --- if weight calibration resulted in an error

f) Output status bit meaning:

The status bit definition:

Bit Byte 1 (H1) Byte 2 (H2) Byte 3 (H3)

0=stable 0= not under capacity

1= not stable 1= under capacity 0= not at zero point 0= not over capacity

1= at zero point 1= over capacity

01=normal work mode 10= hold work mode 00=not define 11= not define

0=not AD over 0=not Zero Over 0= gross weight

1=AD over 1=Zero Over 1= net weight 0= eeprom OK 0=not Zero down 0=not AD down

1= eeprom error 1= Zero down 1=AD down

PS‐102 www.measuretek.net .13

4 always 1 always 1 always 1 5 always 1 always 1 always 1 6 always 0 always 1 always 0 7 parity Parity parity

8. Symbol Definitions:

0﹉﹉﹉

-Zero point is over the setting range

0﹍﹍﹍

-Zero is below the setting range

Ad﹉﹉﹉

-Analog digital converter chip over max. range

Ad﹍﹍﹍

-Analog digital converter chip below min. range

﹉﹉﹉﹉ -Weight signal is too large

﹍﹍﹍﹍ -Weight signal is too small

EEP.E1

-Config parameters incorrect (no set, no calibration, over normal range, etc.)

EEP.E2

-User parameters are incorrect

CAL-Px -Calibration point

CAL.Er

-Error in calibration

CAP.--

-The setting 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. Replace with a new indicator and perform

calibration

Ad﹉﹉﹉

Ad﹍﹍﹍

1. The cable from platform to indicator is not

correctly connected, or disconnected, or short circuit

2. Indicator is damaged

3. Load cell cable is broken

4. Load cell is damaged

1. Replace with a new indicator and perform

calibration.

2. Return the scale for repair

PS‐102 www.measuretek.net .14

0﹉﹉﹉

Indication is out of key zero range

Reduce the weight on platform until the indication is within the key zero range.

0﹍﹍﹍

Weight reading below Power On Zero limit

1. Install platform on the scale.

2. Loosen the shipping protection screws.

3. Check whether an object is stuck between

scale base, if yes, remove the object.

4. Perform zero calibration

﹉﹉﹉﹉

1. Weight reading exceeds Overload limit；

2. The weight value cannot be displayed in

the current unit of measure because it exceeds 6 digits

1. Reduce load on the scale until a weight

value is displayed.

2. Use a more appropriate unit of measure

﹍﹍﹍﹍ Weight reading below Under load limit

1. Install platform on the scale

2. Perform zero calibration

SYMPTOM PROBABLE CAUSE REMEDY

EEP.E1

1. CONFIG parameters are not correctly set

2. CAL parameters are not correctly set

1. Re-set CONFIG parameters per the

Technical Manual

2. Perform calibration

EEP.E2

USER parameters are 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 to stabilize. then press the

ZERO/ON/OFF key to zero the display

1. Max. CAPACITY not

same as marked on overlay

2. Any function invalid

3. Any measuring

units missed

CONFIG and USER parameters are not correctly set

Re-set CONFIG and USER parameters per the Technical Manual

Weighing is not

accurate

1. An object is stuck between the load cell

and scale base

2. Load cell received a heavy impact

3. The scale is at a location far from Chicago

1. Remove the object

2. Perform Linearity calibration

3. Loosen the shipping protection screws

4. Place the load on the center of the

weighing platform.

10.Replacement Parts

Part Number Description

MH12R97602G AC120V/DC6V 500mA UL adaptor

PS‐102 www.measuretek.net .15

PS‐102 www.measuretek.net .16

11.One Year Limited Warranty

MeasureTek products covered in this manual are guaranteed to be free from defects in material and workmanship for a period of one year after date of purchase. Misuse, accidental damage, overload, alteration, and improper installation are expressly 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 the defective product and in no event shall MeasureTek be

liable for consequential or indirect damages.

Measuretek PS-102, PS-102-75, PS-102-200 Technical Manual

Specifications and Main Features

Frequently Asked Questions

User Manual