User guide

Spectrex Inc. - SharpEye

ML & MU Flame Detector Manual – TM 767100, Rev. A, April 2005

4.3.3 Detector Default Set Up

The detector has five (5) functions that can be programmed according to customer

requirement at factory or at customer facility using software Host. The standard set

up (default) that the detector is programmed to if there are no specific

requirements are as follows:

Table 7: Default function set up

Detector default set up: 20/20ML 20/20MU

Delay A 3

Alarm Latch NO NO

Automatic BIT YES YES

Alarm BIT NO NO

4.4 Built In Test

4.4.1 General

The detectors’ Built In Test (BIT) checks the following:

•

Electronics circuitry

• Sensors

• Window cleanliness

The detector can be set to perform the BIT automatically and manually or

manually only.

4.4.2 Principles

If the result of a BIT is the same as the current status of the detector (NORMAL or

BIT FAULT), the detector's status is unchanged. If the result of a BIT differs from

the current status of the detector, the detectors’ status is changed (from NORMAL

to BIT FAULT or from BIT FAULT to NORMAL).

Note: In BIT FAULT status, the detector can continue to detect a fire.