Exiting Gas Select Mode (Start Measure) - RKI Instruments GX-3R Pro Operator's Manual

Tetrahydrofuran (THK)
* Values are actually IEC because no ISO definition exists for these gases.
1 . While in Gas Select Mode, use AIR to place the cursor next to CHANGE LEL.
2 . Press and release POWER MODE. The current setting flashes.
3 . Use AIR to display the desired setting.
4 . Press and release POWER MODE to save the setting and return to Gas Select Mode.
5 . See "Exiting Gas Select Mode (START MEASURE)" on page 162 to return to
Measuring Mode.

Exiting Gas Select Mode (START MEASURE)

1 . From the main menu, place the cursor in front of START MEASURE at the bottom of
the menu.
2 . Press and release POWER MODE.
3 . The unit begins its start-up sequence.
162 • Appendix C: Gas Select Mode
Table 19: Lower Explosive Limit ppm Levels
Gas Standard (ppm)
STEALTH
CHANGE LEL
START MEASURE
GAS SELECT MODE
STEALTH
CHANGE LEL
START MEASURE
GAS SELECT MODE
IEC (ppm)
20,000 15,000
MAINTE 7:49
MAINTE 7:49
ISO (ppm)
15,000*
GX-3R Pro Operator's Manual