RKI Instruments GasWatch 2 Manual - Manual (Page 15)

GasWatch 2 Operator’s Manual Start Up • 10
3. When the fresh air readings have been set, the LCD displays “Adj” for 2
seconds which prompts you to release the AIR button. The unit will set
the reading to 0 ppm for the GW-2C and GW-2H and to 20.9% oxygen
for the GW-2X.
4. The unit then returns to normal operation and the display indicates the
current gas concentration.
Turning Off the GasWatch 2
1. Press and hold the POWER/MODE button for about five seconds to
turn off the unit. The buzzer will pulse while the POWER/MODE button
is being pressed before the unit turns off.
2. Release the button when the LCD is blank. The unit is off.