Connecting The Instrument As Stand-Alone; Connecting The 4-20Ma/Hart ® Interface; Connecting The Fieldbus Interface; Grounding - Dräger Polytron 8000 Series Technical Manual

5.2.5

Connecting the instrument as stand-alone

1. Pull off the 5-pin connector.
2. Connect the wires for power to the appropriate terminal, see wiring figures
3. Bridge pin 3 and 4 of the 5-pin connector.
4. Connect the relay wires, see The relay labels (NO, COM, NC) represent the
default state (normally energized) of all relays while the instrument is powered.
5. Close the instrument, see 5.2.9 Closing the instrument.
Connecting the relay connector
The wires for alarm devices have to be connected to the 9-pin relay connector. A
piece of wire insulation (heat shrink tube) and a rubber boot are included for extra
protection of relay wires.
1. Pull off the 9-pin connector.
2. Cut the heat shrink tube as needed and slide over the relay wires before
insertion into the 9-pin connector.
3. Position the heat shrink tube at the edge of wire insulation and use a heat gun to
shrink the tubing securely onto wire insulation.
4. Slide rubber boot over the wires.
5. Connect the wires for alarm 1 (pre alarm), alarm 2 (main alarm) and fault alarm
to the terminals, as indicated in the wiring table.
6. Plug connector back into socket and tighten screws.
7. Close the instrument, see 5.2.9 Closing the instrument.
5.2.6 Connecting the 4-20mA/HART
For connections to a control unit (PLC), refer to the documentation corresponding to
the control unit.
1. Pull off the 5-pin connector.
2. Connect the three wires for power and signal to the appropriate terminal as
indicated in the wiring table and figure.
3. Plug connector back into socket and tighten screws.
4. Close the instrument, see 5.2.9 Closing the instrument.
5.2.7

Connecting the fieldbus interface

1. Pull off the 2-pin and 4-pin connector.
2. Connect the two wires for power and the four wires for signal to the appropriate
terminals as indicated in the wiring table and figure.
3. Plug connector back into socket and tighten screws.
4. Close the instrument, see 5.2.9 Closing the instrument.
For further information regarding the fieldbus interface installation consult the
corresponding Technical Handbook.
5.2.8

Grounding

To ground fieldbus and modbus connections refer to the corresponding technical
manual.
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Technical Manual
Dräger Polytron
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interface
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8000 Series
Installation
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