Multi-Zone Gas Monitors
P/N: 3015-5074 Rev 11 51
Figure 5-1. Sample DIGIPOT Readings
8. Scroll to “DE T DIGIPOT” option (see above) and press ENTER.
9. Use the UP and DOWN arrows to adjust the IR VOLT reading to 4.20 (or as close as possible).
When at the proper value, press ESC once.
IMPORTANT! If IR VOLT does not reach 4.200 ±0.100 volts when adjusting the
DIGIPOT, return to step 6 to lower the IR emitter setting. If the IR emitter setting is
450 ±20 mW, adjust the new IR emitter setting to 375 ±20 mW. Repeat step 8 with
the new IR emitter setting.
10. Press ESC to save.
11. Press ESC to get to the System Menu. Scroll to Service Mode and press ENTER twice to leave
Service Mode. Press ESC once and allow the instrument to complete a pressure check and
purge cycle (approximately 2 minutes).
If the faults cannot be cleared using the above procedure, call the factory for further assistance.
IR VOLT= 4.21
R= 49 MW= 450
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