RKI Instruments GasWatch 2 Manual - Manual (Page 17)

GasWatch 2 Operator’s Manual Operation • 12
1. Make sure the GasWatch 2 is in Measuring Mode. The current gas
concentration should be displayed on the LCD.
2. Press and release the POWER/MODE button to enter Peak Display
Mode. This will activate the LCD backlight and display the Peak
reading. A small Peak symbol is displayed in the upper left corner of the
LCD.
3. Press and release the POWER/MODE button again to enter STEL
Display Mode. This will display the STEL reading. The word “STEL” is
displayed in the middle of the LCD above the reading.
4. Press and release the POWER/MODE button again to enter TWA
Display Mode. This will display the TWA reading. The word “TWA” is
displayed in the middle of the LCD above the reading.
5. Press and release the POWER/MODE button once again to return to
Measuring Mode.
NOTE: If you do not press a button for 20 seconds while displaying the
Peak, STEL, or TWA readings, the unit will return to Measuring
Mode automatically and the backlight will turn off.
Displaying the Min and Max (GW-2X)
You can display the minimum (Min) and maximum (Max) readings on the
GW-2X when the GasWatch 2 is in Measuring Mode using the POWER/
MODE button. The Min and Max readings are cleared when the unit is
turned off.
1. Make sure the GasWatch 2 is in Measuring Mode. The oxygen
concentration should be displayed on the LCD.
2. Press and release the POWER/MODE button to enter Min Display
Mode. This will activate the LCD backlight and display the Min reading.
A small Min symbol is displayed in the upper left corner of the LCD.
3. Press and release the POWER/MODE button again to enter Max
Display Mode. This will display the Max reading. A small Max symbol is
displayed in the upper left corner of the LCD.
4. Press and release the POWER/MODE button once again to return to
Measuring Mode.
NOTE: If you do not press a button for 20 seconds while displaying the
Min or Max readings, the unit will return to Measuring Mode
automatically and the backlight will turn off.