UWE APM User manual

CONTENTS
1. INSTALLATION
2. SPECIFICATIONS
3. KEYBOARD LAYOUT AND DESCRIPTION
4. INITIAL SETUP
5. INSTRUCTION FOR USE
6. TROUBLE SHOOTING
7. DAILY CARE AND MAINTENANCE
APPENDIX: ERROR CODES

INSTALLATION
Because of metrological legislation, installation/some
metrological parameter settings are limited to be done
by authorized personnel only. Do not attempt to change
any of the built-in parameters. Contact your dealer for
installation and technical assistance.
CAUTION:
This unit is legal for trade only when it is sealed (and/or
stamped) and bearing a serial number. Do not attempt
to break the seal (or stamp) affixed to this indicator
or remove the serial number. Contact your dealer for
more information and after sales service.
For most accurate weighing result, do not use the
indicator in where or when the environment condition
falls beyond as those listed on SPECIFICATIONS.
Do not attempt to open this unit or conduct any trouble
shootings other than those listed on TROUBLE SHOOTING.

2. SPECIFICATIONS
Model No.
APM INDICATOR
Max.
USER DEFINED
nmax
6000
Tare Range
1/3 Max. –e (NOTE 1)
Power-on Zero Range
±20% Max. (NOTE 1)
Zero Range
±2% Max. (NOTE 1)
Min. Load
20e (NOTE 1)
Max. measuring range
9.0mV
Min. signal voltage per
verification scale interval
0.8 V
Power voltage requirements
6.0 VDC (BY EXTERNAL POWER
ADAPTOR OR RECHARGEABLE
BATTERY)
Minimum battery voltage
5.5 VDC
Load cell Excitation voltage
5 VDC
Minimal load cell impedance
85
Maximal load cell impedance
5000
Load cell connection
4-wire
Operation
Environment
-10o~40oC
Non-condensed. R.H.≦85%
Specifications subject to change without notice.
NOTE 1:
For Multi range or interval, change e to e1.
CAUTION:
To comply with the law of certain countries and certain
approval requirements, the avoirdupois weight unit of
this indicator may be disabled.

3. KEYBOARD LAYOUT AND DESCRIPTION
1. ON/OFF KEY
Press this key to turn indicator on or off.
2. MODE KEY
Press this key to shift among different weight units
and/or turn backlight on/off.
3. TARE KEY
Press this key to tare off the weight of a container.
4. ZERO KEY
Press this key to set weight displayed to zero.
5. M+ KEY
Press this key to accumulate current weight to memory.
6. MR KEY
Press this key to recall the total accumulated weight
from memory.

7. MC KEY
Press MR and ZERO simultaneously to clear weight from
memory.
8. LO BAT INDICATOR
This indicator appears when input voltage is below the
lowest input limit. Check the power supplied to the
indicator.
9. ZERO INDICATOR
This indicator appears to indicate zero weight status.
10. NET INDICATOR
This indicator appears to indicate the tare function
is in operation and weight shown is net weight.
11. M+ INDICATOR
This indicator appears to indicate memory contains of
stored data.
12. MR INDICATOR
This indicator appears to indicate the value shown is
the total accumulated weight stored.
13. WEIGHT UNIT INDICATOR
The current weight unit is displayed here.

4. INITIAL SETUP
4.1 PLACING THE SCALE
In order to obtain an accurate weighing result, the
complete weighing instrument (hereinafter referred as
the scale) must be placed on a strong and level surface.
4.2 INTERNAL SETTING
4.2.1 Select Weight Unit
This indicator is equipped with metric and avoirdupois
weight units. Default setting = metric weight unit only.
Follow the below steps to enable/disable the avoirdupois
units.
a. Turn indicator off
b. Press and hold TARE, then press ON/OFF
c. Indicator displays F.1
d. Press TARE twice
e. Indicator displays F.3
f. Press and hold MODE until the kg or lb sign appears.
g. Press MODE to shift between kg and lb sign.
- To enable the avoirdupois units, press TARE
when the lb sign appears.
- To disable the avoirdupois units, press TARE
when the kg sign appears.

h. After TARE is pressed, the indicator will go to F4
(AUTO POWER OFF setting). Refer to 4.2.2 for AUTO
POWER OFF setting or press ZERO to quit.
NOTE
To comply with the law of certain countries and certain
approval requirements, the avoirdupois weight units may
be disabled. Contact your dealer for more information.
4.2.2 Select Auto Power Off Setting
The indicator is equipped with Auto Power Off Function.
The indicator will be turned off automatically if it
is not used for 4 minutes. Follow the below steps to
enable/disable Auto Power Off Function
a. Turn indicator off
b. Press and hold TARE, then press ON/OFF
c. Indicator displays F.1
d. Press TARE three times
e. Indicator displays F.4
f. Press MODE to shift between 0._OFF and 4._OFF.
-To enable Auto Power Off Function, press TARE then
ZERO when 4._OFF appears.
-To disable Auto Power Off Function, press TARE
then ZERO when 0._OFF appears.
g. After TARE then ZERO are pressed, the indicator will
return to operation status.

5. INSTRUCTION FOR USE
5.1 BEFORE WEIGHING
Make sure that:
a. Connect the load cell signal and power to the
indicator properly.
b. Place the scale on a level and strong surface.
c. The indicator is turned on.
d. The ZERO INDICATOR is on. If not, press ZERO to set
display to zero.
5.2 WEIGHING
a. Always place an object onto the scale gently.
Excessive force applied to platter may cause damages
to weight sensor.
b. The weight of the object is displayed on the indicator
automatically.
c. It is a good practice to remove all loads from scale
after weighing. It would prolong the lifetime of
weight sensor.
5.3 SELECT WEIGHT UNIT
Press MODE to shift among kg decimal lb/oz. kg
weight units. Refer to 4.2.1 for internal setting
procedures.

The weight unit used before power off would be employed
when the indicator is turned on again.
5.4 TURN BACKLIGHT (OPTIONAL) ON/OFF
Press MODE to shift among various weight units with or
without backlight.
Even though the backlight function is employed,
backlight will be automatically turned off when a stable
weight remained for 25 seconds or a zero weight is
detected and remains stable for 10 seconds
Backlight will be automatically turned on again when
a new weight is detected or when any key is pressed.
5.5 SET DISPLAYED VALUE TO ZERO WHEN UNLOADED
By pressing ZERO, weight displayed will be set to zero
and ZERO INDICATOR appears.
Refer to SPECIFICATIONS for maximum zero range.
5.6 TARE OFF THE WEIGHT OF A CONTAINER
When a container is used, follow the below steps to tare
off the weight of the container and get the net weight.

a. Remove all loads away from platter
b. Make sure that the ZERO INDICATOR is on.
c. Place the container on the platter.
d. Press TARE.
After TARE is pressed, the TARE INDICATOR would appear.
Refer to 5.2 for weighing procedures. Weight displayed
under is the net weight of the subject matter. Refer
to SPECIFICATIONS for maximum tare range.
5.7 CLEAR THE TARE FUNCTION
Remove all loads from scale then press TARE. After TARE
is pressed, the TARE INDICATOR would disappear.
5.8 MEMORY FUNCTION
5.8.1 Accumulate a Transaction To Memory
a. Refer to 5.2 for weighing producers.
b. Press M+ to save and accumulate data of current
transaction to memory.
c. Indicator displays “P. 1”and M+ INDICATOR appears
to indicate that memory contains of stored data.
NOTE: “P. ?”means the total number of transactions
accumulated to memory.

d. Indicator returns to normal display status after 2
seconds.
e. Repeat ato cfor subsequent transactions.
5.8.2 Memory Recall
Press MR to recall total accumulated weight from memory.
After MR is pressed, indicator displays P. ? (? Means
the number of transactions accumulated), then a flashing
value. The flashing value is the total accumulated weight
stored in memory.
When the total accumulated weight is being displayed,
MR INDICATOR appears to indicator that the value being
displayed is the accumulated weight.
Indicator returns to normal display status after 3
seconds.
5.8.3 Memory Clear
All transactions stored in memory by pressing MR and
ZERO simultaneously.
CAUTION: All data stored will be erased when the
indicator is turned/powered off.

5.9 LO BATTERY
This indicator appears when input voltage is below the
lowest input limit.
5.9.1 In case a Rechargeable is Used
The indicator will be power off in about 5 to 10 minutes.
Recharge the battery now.
5.9.2 In case a Power Adaptor is Used
Check power supply to indicator immediately.
NOTE:
If LO BAT status is detected during power on, indicator
shows P-OFF and the indicator will be powered off
automatically.

6. TROUBLE SHOOTING
Syndrome Indicator cannot be turned on
Check: Is the indicator powered properly?
Action: Check power supply to indicator.
Syndrome Indicator turned off automatically
Check Is Auto Power Off Function employed?
Action Refer to 4.2.2 to disable Auto Power Off
Function.
Check Is the LO-BAT INDICATOR on?
Action Check power supply.
Syndrome Rated capacity cannot be reached
Check Is the TARE INDICATOR on?
Action: Turn the indicator off. Remove all loads
and turn on again.
Check Is there anything obstructing the scale?
Action Remove all obstacles.
Syndrome Blank display with only "kg" or "lb"
Check Is the load applied to scale excess the rated
capacity?
Action Remove all loads and try again.

Syndrome Indicator displays -----
Check Is the load cell signal cables connected
to the indicator properly?
Action Recheck signal cable connections.
Check Is load cell working properly?
Action Check load cell input/output.
Syndrome Weighing result is not accurate
Check Is the scale placed in a level condition?
Action Obtain a level condition.
Check Is the scale affected by airflow, vibration
or RFI?
Action: Place the scale away from all disturbances.
Check Is the indicator calibrated correctly?
Action Contact your dealer.

7. DAILY CARE AND MAINTENANCE
7.1 Clean the indicator with a soft and damp cloth.
If necessary, apply a mild detergent.
7.2 Do not use any harsh, abrasive material, acetone,
volatile solvent, thinner or alcohol for
cleaning.
7.3 Verify the accuracy of indicator periodically.
Re-calibrate the indicator if necessary.
NOTE: In some countries, calibration requires
authorized/qualified agent. Contact your
dealer for more information.
7.4 Store indicator scale in a dry and clean place.

APPENDIX: ERROR CODES
P_OFF
Low battery status is detected during power on. Indicator
will shut off after this message appeared.
Error
Error during calibration.
Case 1:
The 1st calibration weight entered is less than 1/3 of
rated capacity
Case 2:
The 2nd calibration weight entered is over the
rated capacity.
Case 3: The span value is not within the acceptable range.