Manual

Spectrex Inc. - SharpEye

Mini IR3 Flame Detector Manual – TM 787100, Rev. D April 2011

c. Function Setup

The user can select the desired mode of operation by means of host.

Table 11: Function Setup

Name Yes No

1 Alarm Latch Alarm latching enable Alarm latching disable

(default)

2 Automatic BIT Automatic & manual BIT

(default)

Manual BIT only

3 Alarm BIT Successful Manual BIT

activates the Alarm Relay for

approximately 3 seconds; the

4-20mA will provide 15mA for

3 sec

Successful manual BIT

does not activate the

Alarm Relay (default)

d. Addresses Setup

Refer to TM 784050 for instructions for defining the addresses of the

detectors. The detector provides up to 247 addresses (from 1 to 247) that

can be used with RS-485 communication link.

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 12: Default function set up

Detector default set up: 20/20MI-1 20/20MI-3

Sensitivity 20 5

Delay A A

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.