Alarm code 50 – JULABO Magnum 91 Temperature System User Manual
Page 60
Troubleshooting guide / Error messages
60
ALARM
CODE 50
The pressure sensor of stage 2 (high pressure side) is bypassed or has a line
interruption.
Have the repair done by a specialist.
60
30
15
45
4 s
After eliminating the malfunction, turn the mains power switch off and on again
to cancel the alarm state.
If the unit cannot be returned to operation, contact an authorized JULABO
service station.
Disturbances that are not indicated.
Pump motor overload protection
The pump motor is protected against overloading. After a short cooling interval, the
motor will automatically start running.
F1 F2 F3 F4 F5 F6
Mains fuses:
Mains power connection 400 V / 3 Phases / 50 Hz
The mains fuses on the rear of the housing are safety cutouts.
F1 and F4
Safety cutouts: 10 A
Pump motor
F2 and F5 Safety cutouts: 16 A
Heater 1
F3 and F6
Safety cutouts: 16 A
Heater 2, Electronics
F1 F2 F3 F4 F5 F6
Mains fuses:
Mains power connection 230 V / 3 Phases / 60 Hz
The mains fuses on the rear of the housing are safety cutouts.
F1 and F2
Safety cutouts: 16 A
Heater 2, Electronics
F3 and F4 Safety cutouts: 16 A
Heater 1
F5 and F6
Safety cutouts: 10 A
Pump motor
0
1
0
1
2 Motor protection circuit breakers for compressor motors