Dräger Polytron 7000

21
Electrical connections
Transmitter without relay or pump module (2-wire):
Transmitter with relay module (3-wire):
Minimum
supply voltage
Number of trans-
mitters
Maximum cable length with a load resistance of 250 Ω
0.5 mm
2
265 pF/m
0.75 mm
2
320 pF/m
1.5 mm
2
375 pF/m
2.5 mm
2
400 pF/m
20 V
1 1042 m 921 m 828 m 792 m
2 1007 m 890 m 801 m 766 m
3 972 m 860 m 774 m 740 m
4 585 m 829 m 747 m 714 m
24 V
4 936 m 829 m 747 m 714 m
5 901 m 799 m 720 m 689 m
6 865 m 768 m 693 m 663 m
7 830 m 737 m 666 m 637 m
8 794 m 707 m 639 m 611 m
9 390 m 585 m 612 m 586 m
28 V
9 758 m 676 m 612 m 586 m
10 722 m 645 m 584 m 560 m
11 687 m 614 m 557 m 534 m
12 651 m 584 m 530 m 508 m
13 616 m 553 m 503 m 482 m
14 334 m 502 m 476 m 456 m
15 78 m 117 m 234 m 390 m
Minimum
supply voltage
Number of trans-
mitters
Maximum cable length with a load resistance of not more than 500 Ω
0.5 mm
2
265 pF/m
0.75 mm
2
320 pF/m
1.5 mm
2
375 pF/m
2.5 mm
2
400 pF/m
20 V
1 287 m 431 m 828 m 792 m
2 144 m 216 m 431 m 718 m
3 96 m 144 m 287 m 479 m
4 72 m 108 m 216 m 359 m
24 V
1 386 m 579 m 828 m 792 m
2 193 m 289 m 579 m 766 m
3 129 m 193 m 386 m 643 m
4 96 m 145 m 289 m 482 m
28 V
1 429 m 644 m 828 m 792 m
2 215 m 322 m 644 m 766 m
3 143 m 215 m 429 m 715 m
4 107 m 161 m 322 m 537 m