RKI Instruments GX-2012 Manual - Manual (Page 150)

142 • Using Maintenance Mode GX-2012 Operator’s Manual
password is saved and you return to the main menu.
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 AIRS or (SHIFT)T 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 AIRS or (SHIFT)T 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 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 AIRS or (SHIFT)T 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