RKI Instruments M2A - Manual (Page 30)

25 M2A Transmitter Operator’s Manual
2. Press and release the UP/YES button to continue. The display will indicate the target gas and
CAL Mode for a few seconds before showing FreshAir Adjust?.
3. Press and release the UP/YES button. ENTER will alternate with FreshAir on the top display
line and the current gas reading will be on the bottom display line.
4. Press and release the ENTER button. The M2A will perform a zero operation and the display
will indicate SPAN w/Cal Gas?.
5. Press and release the DOWN/NO button. The display will indicate Leaving CAL Mode and
the M2A will return to normal operation.
Oxygen Version, Adjusting the Fresh Air Reading
1. While in normal operation, press and hold the UP/YES button for 5 seconds to enter
Calibration Mode. Release the button when the following screen appears.
2. Press and release the UP/YES button to continue. The display will indicate OXYGEN CAL
Mode for a few seconds before showing FreshAir Adjust?.
3. Press and release the UP/YES button. ENTER will alternate with FreshAir on the top display
line and the current oxygen reading will be on the bottom display line.
4. Press and release the ENTER button. The M2A will perform a span operation and then the
display will indicate ZERO w/Cal Gas?.
5. Press and release the DOWN/NO button. The display will indicate Leaving CAL Mode and
the M2A will return to normal operation.
Calib?
YES/NO