INFICON VGC403 Three-Channel Measurement and Control Unit - Manual (Page 11)

tinb07e1-e 2011-07 Vacuum Gauge Controller
11
NOTE:
In order to reduce the strain on the front panel it is
recommended to support the bottom of the unit.
3.2.3 Mounting the unit in a rack
The Vacuum Gauge Controller is designed for installation
into a rack chassis adapter according to DIN 41 494 (19",
3 HE). For this purpose, 4 collar screws and 4 plastic
sleeves are supplied with the unit.
Fig. 3-3 Mounting the unit in a rack
NOTE:
In order to reduce the strain on the front panel it is
recommended to equip the rack chassis adapter with
a guide rail.
NOTE:
For safe and easy installation of heavy rack chassis
adapters, it is recommended to equip the rack frame
with slide rails.
1 Fasten the rack chassis adapter in the rack
2 Insert the Vacuum Gauge Controller into the rack
chassis adapter
3 Fasten the Vacuum Gauge Controller with the sup-
plied collar screws and plastic sleeves to the rack
chassis adapter
3.3 Connecting
3.3.1 Back side of the device
Fig. 3-4,  11 shows the back side of the VGC403. The
connection for channel 3 (Pos. C) is not available in the
VGC402.
Fig. 3-4 Back side of the VGC403
A Sensor connection, channel 1
B Sensor connection, channel 2
C Sensor connection, channel 3
D CONTROL connection
E Switch for program transfer mode
F RS232C connection
G Mains connection / disconnecting device
H Mains switch
I
Ground screw
J RELAY connection
K Screw for internal protective conductor. Do not loosen this screw!
The configuration of the available connections is
described in the following sections.
WARNING
Lower protection class of the rack.
If the product is installed in a rack, it is likely
to lower the protection class of the rack (pro-
tection from foreign bodies and water) e.g.
according to the EN 60204-1 regulations for
switching cabinets.
Take appropriate measures to restore the re-
quired protection class of the rack.
WARNING
Screw for internal protective conductor.
The internal protective conductor is connect-
ed to the casing with a screw (Pos. K).
Do not turn or loosen this screw.
A
B
C
D
E F G H
I
J
K