Microprocessor Module Replacement Kit for H25-IR Infrared Gas Leak Detectors
6
3015-5575 Rev 0
4. Grasp the left and right edges of the microprocessor module and gently pull straight out while rocking left to right,
until it comes free of the socket.
5. Dispose of the removed microprocessor module in accordance with local regulations for electronic equipment.
Figure 5. Microprocessor Module Removed from H25-IR Main Board
6. Installing the New Microprocessor Module
Install the new microprocessor module by following the steps below.
1. Remove the new microprocessor module from its packaging, being careful to handle the board by the edges only.
2. Orient the new microprocessor so the gold tab and hole are at the bottom left corner (refer to Figure 4).
3. Align the two rows of pins on the back of the microprocessor board with the mating sockets on the main circuit
board in the H25-IR.
NOTE
: As a guide, align the larger hole on the microprocessor module with the identically-sized hole
on the H25-IR main board. If aligned properly, you can see the bare metal of the chassis through the
holes when viewed head-on.
WARNING
: Be sure not to skip or offset the pins to the socket.
4. Ensuring that the pins are properly aligned, press the microprocessor module firmly into the socket.
5. R
eplace the rear panel and associated connectors by reversing the steps done earlier
.
6. Apply power to the H25-IR and verify that it performs its initialization procedure.