SPETCREX INC
SafEye
™
™
Series 200 IR Gas Detector - User’s and Maintenance Manual
Doc. No. TM792100, Rev. B, Oct..1997
- 38 -
4-20mA Output:
Terminals 11 and 12 are used for 4-20mA current output as specified in section 1.8.1
for the 4-20mA .
mA
11 (+)
12 (-)
Detector
Controller
4-20mA Channel
11 (+)
Figure 2-8. 4-20 mA Source Output
RS-485 Output:
Terminal 14 and 15 are used for the communication network (see Figure 2-9).
14
15
2
Detector terminals
RS485 Card
+
Card Return
Signal
Figure 2-9. PC Communication Loop
11(+)
13
14
