Manual

Spectrex Inc. - SharpEye

UV/IR Flame Detector Manual –

TM20/20LB Rev E, August 2004

Optional Latching (default is non-latching):

The detector includes a latched alarm output capability, which operates

according to the DIP-switch SW1-1 position. Upon the detection of a fire, the

detection signal is latched until manually reset (disconnecting the power supply

or upon performing a manual BIT). Latching affects the Alarm Relay, 4-20mA

output, Alarm LED, (the ACCESSORY RELAY will latch only when SW1-4 at

OFF position).

Built-in Test Options (refer to 2.5):

Successful Manual BIT activates the following outputs according to SW1

switches:

SW1-6 ON: The Alarm relay will be activated for 3

seconds. The 4-20mA output will provide

20mA for 3 seconds.

SW1-7 ON & SW1-6 ON: The Accessory & Alarm relays will be activated

for 3 seconds. The 4-20mA output will provide

20mA for 3 seconds.

SW1-7 ON & SW1-6 OFF: The Alarm relay will be activated for 3

seconds. The 4-20mA output will provide

16mA for 3 seconds.

ACCESSORY RELAY AS EOL: If SW1-8 is ON then the Accessory Relay is

used as End of Line (EOL) relay. In this case

the accessory relay is always active as long as

the detector is powered.