Instruction Manual

3.6.2 Programming Magnet Operating Instructions

Operator interface to MicroSafe™ gas detection products is via magnetic switches located behind the transmitter

face plate. DO NOT remove the glass lens cover to calibrate or change programming parameters. Two switches

labeled “PGM 1” and “PGM 2” allow for complete calibration and alarm level programming without removing the

enclosure cover, thereby eliminating the need for area de-classification or the use of hot permits.

A magnetic programming tool (see figure 6) is used to operate the switches. Switch action is defined as momentary

contact, 3 second hold, and 30 second hold. In momentary contact use, the programming magnet is waved over a

switch location. In 3 second hold, the programming magnet is held in place over a switch location for 3 or more

seconds. In 30 second hold, the programming magnet is held in place over a switch location for 30 or more sec-

onds. Three and thirty second hold is used to enter or exit calibration and program menus while momentary con-

tact is used to make adjustments. The location of “PGM 1” and “PGM 2” are shown in figure 7.

NOTE: If, after entering the calibration or program menus, there is no interaction with the menu items for more

than 30 seconds, the sensor will return to its normal operating condition.

3.6.3 Initial Operational Tests

After a warm up period has been allowed for, the sensor should be checked to verify sensitivity to combustible

hydrocarbon gas.

Detcon Model IR-622 Combustible Hydrocarbon Sensor PG.13

Magnetic Programming Tool

Figure #6

1234

RED

BRN

WHT

BLK

Remote Transmitter

IR-622-RT

Remote Sensor

IR-622-RS

WHT

BLK

YEL

BLU

RED

BRN

YEL

BLU

Figure #5A