GA 12.137/2.02 - 05/2002
Installation
11
Item in
Description
Fig 6
Description
Remark
in Section
1
High-pressure helium connection
marked with red dot
2.6
2
Low-pressure helium connection
marked with green dot
2.6
3
Helium refilling connection
used for releasing and topping up helium
4.1
4
Sub-D connector, 9 pole
3.5
RS 232/485 interface
5
Sub-D connector, 25 pole
See Fig. 12
2.5
for remote control
6
Display
16 characters
1.1, 3, 5
7
OFF button
Red; used to stop operation of the compressor unit
3
8
ON button
White or black; used to start operation
of the compressor unit
3
9
SELECT button
Gray; used to display the hours meter or
failure messages
3
10
Cover plate
Terminals for setting the compressor unit to the
2.5
line voltage and for setting the cold head motor type
are located behind the cover plate; see Fig. 11.
11
Crane eyelets
Detachable
2.2
12
Fuses
Safeguard the input current (primary circuit) of the
1.3
transformer for the cold head motor and the
control voltage
13
Electrical connection for cold head
bended
2.5
14
Main switch
Connects the power module to the mains supply
or disconnects it from the mains supply;
2.5, 3
simultaneously acts as motor protection switch
15
Socket
for mains power cord, type HAN3HvE
2.5
16
Pressure gauge
Displays the pressure on the high-pressure
1.1, 3
helium side of the compressor unit
17
Coolant inlet
Do not throttle throughput in the inlet line.
2.4
18
Coolant outlet
To set the flowrate use a throttle here
2.4
19
Handle
Do not use for crane
2.2
Connections and controls
