Spectrex 20/20SI Triple IR (IR3) Flame Detector User Manual

Page 28

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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

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