Baker Hughes Panametrics oxy.IQ, Руководство пользователя

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Appendix A. Outline and Installation Drawings
28 oxy.IQ User’s Manual
Figure 14: Wiring options (ref. dwgs. 702-285 and 702-286)
Maximum load of analog input device is
dependent on power supply voltage
and cable resistance.
Maximum load of analog input device is
dependent on power supply voltage
and cable resistance.
1. For class 1 div 2 installation, the oxy.IQ shall be installed in
an appropriately rated final enclosure accepting a division 2
wiring method per NEC/CEC.
704-1317-xx
(black jacket)
Class 1 div 2 enclosure
Hazardous location Non-hazardous location
blue
brown brown
+24V
24V return
Power supply
4-20MA analog
input device
704-1317-xx
(black jacket)
blue
brown brown
4-20MA analog
input device
+24V
24V return
Power supply
Non-hazardous location
Hazardous location Non-hazardous location
IS cable
704-1318-xx
(blue jacket)
+24V
24V return
Power supply
4-20MA analog
input device
R1
R2
ZBB bus bar
MTL7706
BLACK
black green
blue
brown
IS ground
Non-IS cable
red
green
1
3
2 4
1. Equipment connected to barrier
inputs must not use or generate
more than 250V.
2. Total load of R1 + R2 must equal
250 ohms ±5%.
oxy.IQ transmitter
oxy.IQ Transmitter
oxy.IQ transmitter