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.