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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 effectively
compensated for. During the Verification operation, a new span factor is calcu-
lated for the Sensor, and this value is then applied for all subsequent readings.
Changing Gasses
Selecting a different gas requires time for the analyzer to purge the internal
volumes and stabilize flows. To prevent spurious alarms during the transition,
the analyzer will display New Gas on the display and automatically purge itself.
This period lasts forty minutes. The Data Valid contact is opened during this
period and flow alarms are suppressed. Note that this process can be termi-
nated by using the Abort function (Press the Zero Key, scroll down to the Abort
selection and press Enter). If Aborted, normal sampling will resume after the
completion of the current measurement cycle.
PN 583054901, Rev YA
AMETEK recommends performing a Verification cycle monthly. How-
ever, no Verification 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 Verification cycle.
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Overview
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