Model S4000CH
59
Status Indicators:
Three-digit digital display with gas concentration, Warn and Alarm
LED’s, calibration prompts, fault codes, and setup options.
RS-485 Output
(Optional):
Dual Redundant Modbus RTU, suitable for linking up to 128 units
or up to 247 units with repeaters.
HART
(Optional):
Fully HART Compliant. User selectable between HART and
Modbus. HART current source Rx = 100K
Ω
Cx = 2nF.
Baud Rate:
2400, 4800, 9600, or 19200 BPS
Faults Monitored:
Calibration error, sensor error, low DC supply, EEPROM,
EPROM, setup error, gas check time exceeded, switch error,
ARGC, and internal problem.
EMC Protection:
Complies with EN 50270, EN 61000-6-4
7.3.4 Cable
Requirements
Cable Requirements: (w/out ARGC & with relays)
3-wire shielded cable. Max. Distance between S4000CH and power source @ 24 VDC
nominal.
AWG
Ohms/1K
FEET
METERS
12*
1.588
4143
1263
14
2.525
2606
794
16
4.016
1638
499
18
6.385
1030
314
20
10.15
648
198
Table 16: 24 VDC Cable Lengths with Relays
* Screw terminals only
Cable Requirements (w/out ARGC & w/out Relays)
3-wire shielded cable. Max. Distance between S4000CH and power source @ 24 VDC
nominal.
AWG
Ohms/1K
FEET
METERS
12*
1.588
4541
1384
14
2.525
2856
871
16
4.016
1796
547
18
6.385
1129
344
20
10.15
710
217
Table 17: 24 VDC Cable Lengths w/o Relays
* Screw terminals only
Cable Requirements: (with ARGC & with Relays)
3-wire shielded cable. Max. Distance between S4000CH and power source @ 24 VDC
nominal.
AWG
Ohms/1K
FEET
METERS
12*
1.588
3661
1116
14 2.525
2303
702
16
4.016
1448
441
18 6.385
911
278
20
10.15
573
175
Содержание S4000CH
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Страница 10: ...Model S4000CH 2 Figure 3 Sensor Remote Installation in inches Figure 4 ARGC Remote Installation ...
Страница 22: ...Model S4000CH 14 Figure 12 S4000CH Terminal Block Locations Figure 13 Remote Junction Box Terminal Block ...