Rki-instruments SDM-E2 Manuel d'utilisateur télécharger pdf (Page 50)

45 • Bump Testing an Instrument with Special Sensors

• To perform a calibration, press and release the CAL S button.

13. The “Z” to the right of the gas reading indicates that air is being applied to the

instrument for a fresh air adjustment (zero). The SDM-E2 will apply fresh air to

the instrument for the time defined by the AIR TIME bump test parameter.

14. The SDM-E2 will perform a fresh air adjustment on the instrument.

• If the air adjustment is successful, the SDM-E2 will indicate that all

channels passed and continue as described in step 15 below.

• If one or more of the sensors fails the fresh air adjustment, the SDM-E2 will

abort the bump test and will not apply calibration gas. If this happens, the

BUMP T LED will flash red indicating a failure and the following screen will

appear indicating which channels passed and failed the fresh air

adjustment with a P (pass) or an F (fail) to the right of the “Z”. The “Z”

indicates it is a fresh air adjustment (zero) result. In the following example,

the H

S channel failed the zero adjustment.

In this case, continue to step 18.

CH4 0%LEL Z P

OXY 20.9vol% Z P

H2S 0.0ppm Z P

CO 0ppm Z P

CO2 0ppm Z P

NH3 0.0ppm Z P

CH4 0%LEL Z P

OXY 20.9vol% Z P

H2S 0.0ppm Z F

CO 0ppm Z P

CO2 0ppm Z P

NH3 0.0ppm Z P

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 88 89

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Rki-instruments SDM-E2 Manuel d'utilisateur Page 50