Troubleshooting Guide - Sartorius U 4100 Instruction Manual

Troubleshooting Guide.

Problem ...
No segments appear in the weight
display (9)
Weight display shows "L" or
"CH 2"
Weight display shows "H"
The weight readout changes con-
stantly or the special message
"BUSY" does not go out in the
weight display
Weight shows "CE"
The code "CC" does not go out in
the display
The weight readout is obviously
wrong
Causes ...
- No voltage available
- The AC adapter has not been
plugged in
- The pan (1) is not in place
- Load exceeds capacity of the
balance
- Unstable ambient conditions
- Too much vibration or the bal-
ance is exposed to a draft
- Sample does not have a stable
weight
- The Cal key (6) was not pressed
when the display read zero
- The balance is loaded
- The balance is not ready to cali-
brate or is in the warmup phase
- The weighing system is affected
by drafts or vibration
- The balance has not been cali-
brated
- The balance has not been tared
before weighing
- The air bubble of the level indica-
tor is not within the circle
(not by U 4100,U 6100 and
U 6100 D)
Remedy
- Check current supply
- Plug in AC adapter
- Position the pan
- Unload the balance
- Set up balance in another area
- Access the menu to adjust the
proper code for the particular type
of weighing environment
- Press the tare control (8)
- Unload the balance
- After plugging the AC adapter
into a wall outlet, allow for at
least 30 minutes´ warmup
- Set the appropriate code by ac-
cessing the menu of the operat-
ing program
- Calibrate the balance
- Tare before weighing
- Level the balance
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