Calibrating an Instrument with Special Sensors • 62
18. Once you have changed the GAS 2 cylinder to the appropriate gas, press and
release the EDIT ENTER button on the SDM-E2. The calibration will continue.
19. Once the GAS 2 calibration gas has been applied for the appropriate amount
of time, the SDM-E2 will determine if the sixth channel passed the calibration.
20. The SDM-E2 will then purge the system with fresh air for the time defined by
the AIR TIME calibration parameter. The calibration results will be displayed
with a P (pass) or an F (fail) while a fresh air purge is performed.
21. Once the fresh air purge is finished, the CAL
LED will stop blinking and be
steadily green if the calibration passed or steadily red if the calibration failed.
CH4 29%LEL CF
OXY 18.0vol% CF
H2S 25.0ppm CP
CO 45ppm CP
CO2 3500ppm CF
NH3 3.0ppm C
CH4 29%LEL CF
OXY 18.0vol% CF
H2S 25.0ppm CP
CO 45ppm CP
CO2 3500ppm CF
NH3 3.0ppm CF
CH4 29%LEL CF
OXY 18.0vol% CF
H2S 25.0ppm CP
CO 45ppm CP
CO2 3500ppm CF
NH3 3.0ppm CF
