RKI Instruments SDM-2009 - Manual (Page 36)

32 • Calibrating a GX-2009
13. The SDM-2009 will apply calibration gas to the instrument for the time defined
by the GAS calibration parameter.
14. The SDM-2009 will then purge the system with fresh air for the time defined by
the Air calibration parameter.
15. After the fresh air purge is complete, the screen will alternate between the gas
readings and the calibration results. If the calibration passed, the auto
calibration values will be displayed. If the calibration failed, the gas readings at
the end of the gas application will be displayed. The calibration results are
indicated with a P (pass) or an F (fail) below the channel units. The CAL
S
LED will stop blinking and be steadily green if all channels passed the
calibration or steadily red if any channel failed the calibration. In the examples
below, the CO sensor failed calibration.
Figure 17: Calibration Results
16. After a successful or failed calibration,
• To perform any other operations:
To perform a bump test, press and hold the BUMP
T
button until the pump
starts. To perform another calibration, press and hold the CAL
S
button
until the pump starts. To return to the home screen, press and hold the
EDIT ENTER button until the home screen appears.
• To turn the GX-2009 off:
If the calibration was successful, the instrument will shut off after 15
seconds. If the calibration failed, the instrument will shut off after 10
minutes. If buttons are pressed before the SDM-2009 turns off the
instrument, it will automatically turn it off 10 minutes after the last button
push.
To turn off the instrument before it is automatically turned off, press and
47 11.0
CAL G 1
CO ppm H2S ppm
CH4 %LEL OXY vol%
49 23.0
CAL AIR
P P
CAL
CO ppm H2S ppm
CH4 %LEL OXY vol%
F P
50 12.0
CAL
CO ppm H2S ppm
CH4 %LEL OXY vol%
12 25.0