RKI Instruments Gas Tracer - Manual (Page 181)

Gas Tracer Operator’s Manual Using Maintenance Mode • 173
6. Repeat steps 4 and 5 to select the remaining characters. When you
press and release the POWER ENTER button to enter the last
number, the 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 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.
45
1496
%
MAINTENANCE
FLOW ADJ
1500
1760
MAINTENANCE
FLOW ADJ