OHAUS FC5706 - 3.6 Error Codes and Causes

CHAPTER 3 MAINTENANCE PROCEDURES
FC5706 Centrifuge Service Manual 3-12 Ohaus Corporation www.ohaus.com
3.6 Error Codes
Error No.
Description
Cause
1
Imbalance arose
Excessive acceleration at
the sensor
2
Imbalance sensor is defective
Rotary encoder circuit board
is defective, cable break,
plug is loose (between
control unit to frequency
converter), control unit is
defective
4
Imbalance switch has been
activated for longer than 5
seconds
Imbalance switch incorrectly
adjusted, imbalance switch
is defective, cable break,
plug is loose (between
control unit to frequency
converter), control unit is
defective
11
Temperature sensor is defective
Temperature sensor is
defective, cable break, plug
is loose (between control
units to frequency
converter), control unit is
defective.
12
Chamber over temperature
Relay on the controller is
defective, cooling is
defective, heating is
defective, ventilation is
defective.
14
Problem with the speed sensor.
Lid is closed for a certain time.
The blocking time is shown in the
display and replaced with
"CLOSE Lid".
Rotary encoder circuit board
is defective, cable break,
plug is loosening (between
control units to frequency
converter), motor is
blocked, control unit is
defective, frequency
converter is defective.
33
Open lid while the motor is
running
Control switch of the lid lock
is defective
3-18