Spectrex 20/20SI Triple IR (IR3) Flame Detector Bedienungsanleitung PDF herunterladen (Seite 25)

Spectrex Inc. - SharpEye

IR3 Flame Detector Manual – TM 20/20I, Rev. (6) August 2004

D. Automatic & Manual BIT (SW1-3 = ON)

Manual Bit

Functions as described in Para. 4.4.c. In the case of an unsuccessful BIT all

outputs will function as described in para. 4.4.c, but the BIT will be automatically

executed every 1-minute. This mode of operation will continue until two

consecutive successful BIT's that have been encountered. As a result, the

detector will resume its normal operation.

Automatic BIT

The detector automatically performs a BIT every 15 minutes.

A successful BIT sequence does not activate any indication:

•

The FAULT relay

is CLOSED (NORMAL).

• The POWER LED

is ON (NORMAL).

An unsuccessful BIT sequence activates the following:

• The FAULT relay

is opened.

•

4-20mA output

indicate FAULT (0mA).

•

The POWER LED (yellow)

blinks (4 Hz).

• BIT procedure

will be performed every 1 minute.

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Spectrex 20/20SI Triple IR (IR3) Flame Detector Bedienungsanleitung Seite 25