Spectrex 20/20R - Single IR Flame Detector User Manual

Page 27

Spectrex Inc. - SharpEye

Single IR Flame Detector Manual – TM 20/20R, Rev. A January2005

E. Electrical outputs

• Dry Contact Relays:

Table 10: 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