158 • Using Maintenance Mode
Gas Tracer Operator’s Manual, CSA Version
Performing a Low Flow Setpoint Adjustment
If your instrument repeatedly goes into low flow alarm and you have tried all of
the recommendations in the Troubleshooting section, you may need to perform a
low flow setpoint adjustment.
1. Use the AIR
▲
or (SHIFT)
▼
buttons to display the FLOW ADJ menu item.
Press and release the POWER ENTER button. The pump will turn off and the
screen will display values that reflect the pump’s current draw.
2. Use the AIR
▲
or (SHIFT)
▼
buttons to get a reading of approximately 1500 on
the bottom value. When you have adjusted the value as close as you can, press
and release the POWER ENTER button.
3. The pump will turn on and two new values will be displayed. The top will be
a reference value and the bottom will reflect the pump’s current draw.
Connect a flow meter to the inlet of the instrument and adjust it to 0.5 SCFH ±
0.1 SCFH. This will be the low flow setpoint. You do not need to adjust
anything at the instrument. Once the desired low flow setpoint is set, press
and release the POWER ENTER button.
4. You will return to the FLOW ADJ menu item in Maintenance Mode.
Exiting Maintenance Mode
1. Use the AIR
▲
or (SHIFT)
▼
buttons to display the START menu item. Press
and release the POWER ENTER button.
2. The unit will exit Maintenance Mode and begin its start up sequence.
45
1496
%
MAINTENANCE
FLOW ADJ
1500
1760
MAINTENANCE
FLOW ADJ
