Sartorius U 4100 - Troubleshooting Guide

13
Troubleshooting Guide.
Problem ... Causes ... Remedy
No segments appear in the weight
display (9)
- No voltage available
- The AC adapter has not been
plugged in
- Check current supply
- Plug in AC adapter
Weight display shows
“L”
or
“CH 2”
- The pan (1) is not in place - Position the pan
Weight display shows
“H”
- Load exceeds capacity of the
balance
- Unload the balance
The weight readout changes con-
stantly or the special message
“BUSY”
does not go out in the
weight display
- Unstable ambient conditions
- Too much vibration or the bal-
ance is exposed to a draft
- Sample does not have a stable
weight
- Set up balance in another area
- Access the menu to adjust the
proper code for the particular type
of weighing environment
Weight shows
“CE”
- The Cal key (6) was not pressed
when the display read zero
- The balance is loaded
- Press the tare control (8)
- Unload the balance
The code
“CC”
does not go out in
the display
- The balance is not ready to cali-
brate or is in the warmup phase
- The weighing system is affected
by drafts or vibration
- 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
The weight readout is obviously
wrong
- 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)
- Calibrate the balance
- Tare before weighing
- Level the balance