Dräger Polytron 8200, Инструкция по эксплуатации

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Installation
Dräger Polytron 8200/8310 9
3.5 Electrical installation without e-Box
Connection diagram for operation as a current source
Connection diagram for operation as a current sink
3.5.1 Power and signal cables
1. Release the set screw (1)
and unscrew the housing
cover from the device.
2. Lift the handle and remove
the enclosure with the main
electronics.
3. Connect the device
electrically to the protective
ground.
4. Rotate the main electronics
and disconnect the 5-way
plug.
5. Connect the three cables for the power supply and the
signal to the corresponding terminals (see following table
of connections for the 5-way plug).
Connections for 5-way plug (power supply and signal):
6. For operation without a central controller: connect Terminal 3
to Terminal 4.
7. Fit the plug back in the socket and tighten the screws.
8. The screen of the cable must only be connected to the
control unit.
9. Insert the main electronics back in the housing.
10. Screw the cover on again and tighten the set screw.
3.5.2 Version with relays
When the relay module is fitted, the wires for the alarm device
are connected to the 9-way plug.
1. Disconnect the 9-way plug on the rear of the main
electronics.
2. Connect the wires for Alarm Relay 1, Alarm Relay 2 and the
Fault relay to the corresponding terminals, (see following
table of connections for the 9-way plug).
3. The relays are energized when the default settings are used
and in the measurement mode. This insures "fail-safe"
operation. The terminal assignments in the connection table
below apply when the default settings are used and when in
measuring mode (see chapter 4.6 on page 13).
4. Fit the plug back in the socket and tighten the screws.
5. Fit the enclosed protective cover over the plug and secure
it with cable ties if necessary.
CAUTION
First connect the cables for the relays and make
the connections to the sensor before connecting the
device to the power supply.
!
01133300.eps
VDC
+
-
mA
01033300.eps
VDC
+
-
mA
00933300.eps
1
5-way plug (power supply and signal)
Terminal 1
2 3 4 5
Ident. PWR+ PWR- PWR- 4 to 20 mA signal PE
Function V+ V- V- 4 to 20 mA signal
(Operation as
source or sink)
PE
WARNING
At voltages >30 V AC or >42.4 V DC, the relay cables
must be enclosed in protective tubing, or double-
insulated cables must be used.
NOTICE
For clear and far-ranging detection of a device fault,
an alarm device should be switched by the fault relay.
!
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