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
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