PN 305892901, Rev S
Verifying the Analyzer
The verify process is used to correct for aging characteristics of the Sensor
assembly and potential fouling of the sensor by components of the sample
stream. By measuring the response of the sensor to an internally generated
“moisture standard,” any variations in sensor performance can be eectively
compensated for. During the verication operation, a new span factor is calcu-
lated for the sensor, and this value is then applied for all subsequent readings.
AMETEK recommends performing a verication cycle monthly. How-
ever, no verication cycle should be performed during the startup of
the analyzer. It is recommended to allow the analyzer and internal
Moisture Generator to stabilize for a period of 24 hours after applying
power, before running a verication cycle.
Changing Gases
If you are selecting a dierent gas, the analyzer will need time to purge the
internal volumes and to stabilize ow. To prevent false alarms from occurring
during this time, the display on the analyzer will read New Gas and the ana-
lyzer will automatically purge itself. This purge period lasts for forty minutes.
During this period, the Data Valid contact is opened and the ow alarms are
suppressed.
You can abort this purge process by pressing the Verify key, scrolling
to Abort and then pressing Enter. If the process is aborted, normal
sampling will resume after the completion of the current measure-
ment cycle.
1-8 | 3050-RM Moisture Analyzer
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