Spectrex 20/20SI Triple IR (IR3) Flame Detector User Manual
Page 28
Spectrex Inc. - SharpEye
TM
IR3 Flame Detector Manual – TM 20/20I, Rev. (6) August 2004
20
E. Electrical outputs
• Dry Contact Relays:
Table 11: Contact Ratings
Relay
Name
Type
Normal
position
Maximum Ratings
Alarm
SPDT N.O. N.C. 2A at 30VDC or 0.5A at 250 VAC
Accessory SPST N.O.
5A at 30VDC or 250 VAC
Fault
SPST N.C.
5A at 30VDC or 250 VAC
• 4-20mA Current Output:
Terminals 11 and 12:
FAULT
< 2mA
(Typical 0)
NORMAL
4 - 6mA
( 5)
WARNING
9 - 11mA
(10)
ALARM
14 –16mA
(15)
• Communication Network:
The detector is equipped with an RS-485 communication link that can
be used in installations with computerized controllers.
Figure 7: Flame Detector Assembly - Schematic Section