Bruker CryoProbe System User Manual

Cool-down problems
CryoProbe Installation BRUKER 63 (93)
CryoProbe vacuum test
Enter the CryoTool Service mode and let the vacuum system run as if the system
were cooling-down or in cold operation, i.e. V10 and V11 open, Sw2 O
N, Sw3 ON
and ON SPEED. The Vacuum Plug must have been drawn out of the CryoProbe
with the help of the Vacuum Adapter. When the readings of Vac CRP and Vac CU
are stable, write down their values. Then, use the Vacuum Adapter to push the
Vacuum Plug into the CryoProbe. If Vac CRP drops sharply, there’s a leak in the
CryoProbe which must be repaired at the B
RUKER factory.
Section test
Enter the CryoTool Service mode and let the vacuum system run as if the system
were cooling-down or in cold operation, i.e. V10 and V11 open, Sw2 O
N, Sw3 ON
and ON SPEED. Use the Vacuum Adapter at the CryoProbe, V10, and V11 to iso-
late sections of the vacuum system one after another. Monitor the readings of Vac
CRP and Vac CU which are located at opposite ends of the vacuum system, i.e.
inside the CryoProbe and at the Coldhead, respectively.
He Compressor does not run 5.3.3
The He Compressor is started ca. 15 min after a cool-down was initiated. At the
same moment,
COOL DOWN will stop flashing and remains steady.
Table 5.1. Troubleshooting the He Compressor
Symptom Possible cause Elimination
M
AIN POWER and DRIVE
remain O
N when
switched but the He
Compressor does not
start after He flushing is
finished.
1. No mains power.
2. Abnormal room temperature.
3. Incorrect phasing of mains.
4. DC control circuit malfunction.
1. Check mains wiring, fuses, and
circuit breakers.
2. Maintain room temperature at 5° -
35°C.
3. Check phasing of input power.
4. Check DC 24 V circuit and fuses.
M
AIN POWER remains ON
but D
RIVE flips back to
O
FF.
1. Abnormal static He pressure. 1. Adjust He supply pressure.

Bruker CryoProbe System Specifications

General

Brand	Bruker
Model	CryoProbe System
Category	Laboratory Equipment
Language	English