Bacharach Microprocessor Module Replacement Kit Instruction Manual - page 7
Microprocessor Module Replacement for Single-Zone Leak Monitors
3015-5550 Rev 2
7
Setting
Value
Description
SQUELCH
Sets a value of between 0.0 and 99.9 ppm that prevents the display of
measurements below that value. Factory default is 0 ppm. For example, if
the squelch setting is set to 50 ppm, then the monitor will not display
measurements that are below that value. Use the keypad to enter the
desired value, and then press ENTER to save that value and return to the
previous screen.
ZONETMP
Used to enter the temperature of the area being monitored in °C, thus giving
a more accurate ppm reading. The factory default is 25°C. Use the keypad
to enter the desired temperature, and then press ENTER to save that value
and return to the previous screen.
CAL
Used to change the monitor’s calibration factor. This function is to be used
ONLY with instructions from a Bacharach Service Center.
P-CHK
This Pressure Check function displays the current manifold pressure and the
stored ambient pressure in psia, along with the difference between these
two pressures and the current fault code (if any).
e. After setting all of the parameters, press the CPU reset button on the bottom edge at the center of the main
circuit board. The monitor will restart to the desired values and enter the warm-up state.
Figure 8. Location of the CPU Reset Switch
f.
After warmup is complete, confirm that there are no faults indicated.
g. Close the front panel and reinstall the panel screws.
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