Purge time (continued)Table 5-1:
Sensor model Purge rate, in ft
3
/hr (l/h) Time, in minutes
CMFS050 20 (566) 4 1/2
CMFS075 20 (566) 6
CMFS100 20 (566) 6
CMFS150 20 (566) 6
7. At the appropriate time, shut off the gas supply, then immediately seal the purge
outlet and inlet connections with the purge plugs.
Avoid pressurizing the sensor case. If pressure inside the case elevates above
atmospheric pressure during operation, the flowmeter density calibration will be
inaccurate.
8. Make sure that the purge fitting seals are tight so that air cannot be drawn by
suction into the sensor case.
Supplementary information
Installation Manual 31
To Next Page
Loading...
