Owner's manual

Spectrex Inc. - SharpEye

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

4.3.1 Function switch (SW1):

The user can select the desired mode of operation by means of this switch

according to table 5:

Table 5: Function Switch SW1

SW. ON Position OFF Position

1 Alarm latching - enabled Alarm latching – disabled (default)

2 Accessory relay activated at warning

level

Accessory relay activated at

detection level (together with Alarm

relay) -

(default)

3 Automatic & manual BIT (default) Manual BIT only

4 Successful manual BIT activates the

Alarm relay and the 4-20mA output

turns to 15mA for approximately 3

seconds (default)

Successful manual BIT does not

activate the Alarm relay.

5 Successful manual BIT activates the

accessory relay and the 4-20mA

output turns to 10mA for

approximately 3 seconds (default)

Successful manual BIT does not

activate the Accessory relay.

6* Sensitivity range – see table 6 below

(default)

Sensitivity range - see table 6

7* Sensitivity range - see table 6 below Sensitivity range - see table 6

(default)

8 Accessory relay used as End Of

Line.

Accessory relay operates in

accordance with the settings of

SW1(default)

* See Table 6 for sensitivity range setting.

Table 6: Sensitivity range

Sensitivity Range SW1-7 SW1-6

1 (lowest) 16.5 ft (5m) OFF OFF

2 (highest) 50 ft (15m) OFF ON