Ludlum Measurements 334A, Руководство по эксплуатации

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Model 334A Operations Manual
Ludlum Measurements, Inc 34 January 2021
To select between Acute and Chronic readings and the flow channel, press the Channel button
to cycle through the various readings. Acute readings are denoted by the suffix /A , and chronic
readings by the suffix /C . For example, the Pu-239 Acute reading is labeled Pu239/A, and the
Pu-239 Chronic reading labeled Pu239/C. Press the Units button to cycle through DAC-h,
DAC, NetCPS, pCi/l, and other units.
The spectrum may be displayed from the menu by tapping View—Spectrum . In this view, the 256-
channel spectrum is displayed instead of the log entries. Return to the log entry view by tapping
View—Log .
In the event that a dose or concentration reading exceeds alarm limits, the Model 334A will alarm
visually and audibly, automatically display the channel of the chronic or acute reading that caused
the alarm, and the status will be changed to High Alarm .
Operational Duration
For lengthy or continuous air monitoring, it is recommended that the unit be run using the
AC adapter.
When operating off the battery, the Model 334A will run, under normal conditions, for
approximately eight hours before the battery level forces a shutdown. The age of the
battery, as well as the use of wireless reporting capability, will affect the run time.
Note: In order to preserve program and log data, the Model 334A will automatically
shut down when the battery life reaches 15%.