Operator's Manual

1918
Primary Air
Primary air temperature is measured during startup and is used for
the COMBUSTION test. This is the temperature of the air going into the
combustion equipment. It’s sometimes useful to set it after startup if
the ambient temperature changes. You can enter it manually or use the
probe’s temperature sensor.
Read “Safety Information” section.
1. Ensure startup is complete. See “Powering On” section.
2. Select PRIMARY AIR from the JOB MENU.
3. Move the probe to the entry point of air into the combustion
equipment.
4. View live measurement or use the keyboard onscreen to
manually enter a value.
5. SAVE the temperature.
“DELETE” temporarily deletes a single value so you can retest.
“DELETE TEST” deletes the test.
Smoke
The smoke test is used to document the soot levels within the ue.
This is good practice when “dirty” combustion is expected in order to
extend the life of CAT85 and equipment. A third party smoke tester is
needed.
Read “Safety Information” section.
1. Ensure startup is complete. See “Powering On” section.
2. Select SMOKE from the JOB MENU.
3. Use your smoke tester to nd the smoke level.
4. Select the corresponding level on screen.
5. SAVE the smoke level.
“DELETE” deletes the entry.
Fuel Pressures
CAT85 has P1 and P2 pressure ports for connecting hoses (not
included) to gaseous fuel sources/regulators. Do not test liquid fuels.
This is very similar to the Manometer test, but uses fuel-centric labels
that aid in reporting.
Read “Safety Information” section.
1. Ensure startup is complete. See “Powering On” section.
2. Shut o main gas supply power to equipment.
3. Mount the CAT85 onto a secure, cool, magnetic surface near the
test point(s).
4. Connect a static pressure hose to P1 to measure INLET pressure.
Connect astatic pressure hose to P2 to measure OUTLET pressure.
An additional OUTLET pressure is available for two stage systems.
5. Select FUEL PRESSURES from the JOB MENU.
6. ZERO each pressure port sensor, P1 and P2 before connecting to
fuel source. Ensure there are no kinks in the hose.
7. Connect hose(s) to INLET and/or OUTLET.
8. View live measurements.
9. SAVE any measurement displayed.
“DELETE” temporarily deletes a single value so you can retest.
“DELETE TEST” deletes the test.
10. Follow manufacturer’s specication for target inlet and outlet
fuel pressures before operating equipment.