Preparing The Electrical Installation; Connecting The Instrument As Stand-Alone; Electrical Connection Of Relay Option - Dräger Polytron 8000 Serie Instructions For Use

Pin Mark Function
2 PWR- V-
Relay connector
The relay labels (NO, COM, NC) represent the default state
(normally energized) of all relays while the instrument is
powered.
Pin Mark Relay
1 NO FLT Fault
2 COM Fault
3 NC Fault
4 NO A2 A2
5 COM A2
6 NC A2
7 NO A1 A1
8 COM A1
9 NC A1
4.2.2 Figures on the fold-out page
Fig- Connecting diagram for instruments
ure
G Without relay, enclosure grounding
H With relay, enclosure grounding
I1 4-20 mA / HART (Current source)
I2 4-20 mA / HART (Current sink)
I3 4-20 mA / HART (separate power supply)
H1 Stand-alone, relay only
J Foundation Fieldbus / PROFIBUS PA, enclosure
grounding
K Modbus RTU, enclosure grounding
J1 Foundation Fieldbus / PROFIBUS PA, field wiring
K1 Modbus RTU, field wiring
L Power supply digital interfaces

4.2.3 Preparing the electrical installation

1. Loosen set-screw (2) and unscrew lid from instrument,
see figure A on the fold-out page.
2. Pull-out the PCB unit.
3. Proceed with the figure corresponding to your Polytron
model and signal output, see fold-out page.

4.2.4 Connecting the instrument as stand-alone

1. Pull off the 5-pin connector.
2. Connect the wires for power to the appropriate terminal,
see figure H1 on the fold-out page.
3. Bridge pin 3 and 4 of the 5-pin connector.
4. Connect the relay wires, see 4.2.5 Electrical connection of
relay option
Dräger Polytron
Normally Open
Common
Normally Closed
Normally Open
Common
Normally Closed
Normally Open
Common
Normally Closed
®
®
8000 Series
Explosion proof (Ex d) installation - without Docking Station
5. Close the instrument, see 4.2.9 Closing the instrument.

4.2.5 Electrical connection of relay option

The following tables show the status of a connected alarm
indicator and whether it indicates faults such as power loss to
the transmitter.
The relay's behavior depends on the alarm configuration and
the relay contact to which the alarm indicator is connected.
Relay configuration: Normally energized
Contact Alarm indicator status and fault indica-
tion by the alarm indicator
Alarm trig-
gered
Normally ON
Closed
Normally OFF
Open
Relay configuration: Energized on alarm
Contact Alarm indicator status and fault indica-
tion by the alarm indicator
Alarm trig-
gered
Normally OFF
Closed
Normally ON
Open
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 4.2.9 Closing the instrument.
4.2.6 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.
Transmitter- Field wiring
specific fault
fault
indicated not indicated
indicated indicated
Transmitter- Field wiring
specific fault
fault
not indicated indicated
not indicated not indicated
®
interface
en