Technical Manual | Dräger Polytron
®
8000 Series 23
Installation
5.2.1.3 Cable lengths for 4 to 20 mA signal connection of Polytron
®
8200 CAT LC
Tinned copper wire, class 5/6 according to IEC 60228 / VDE 0295
Values include a safety margin of 10%.
Operating voltage: 24 V
Bare copper wire, class 2 according to IEC 60228 / VDE 0295
Values include a safety margin of 10%.
Operating voltage: 24 V
5.2.2 Terminal connections 4-20mA / HART
®
interface and relay
4-20mA / HART® interface
AWG 21 20 18 16 13
mm
2
0.5 0.75 1 1.5 2.5
122°F
50°C
feet 906 1361 1814 2651 4423
m 276 415 553 808 1348
68°F
20°C
feet 1014 1519 2031 2963 4944
m 309 463 619 903 1507
AWG 21 20 18 16 13
mm
2
0.5 0.75 1 1.5 2.5
122°F
50°C
feet 4902 3002 2008 1483 1007
m 1494 915 612 452 307
68°F
20°C
feet 1129 1657 2244 3356 5479
m 344 505 684 1023 1670
Pin Mark Function
1PWR+V+
2PWR-V-
3PWR-V-
To be used when the instrument is not powered by the control
unit (separate power supply), see wiring figures.
4 4-20mA 4 to 20 mA signal (Operation as source or sink)
5 PE Protective earth
Optional PE for relay connection. Connecting PE together
with the 4-20mA analog output may cause ground loops.
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