Ludlum Measurements 3014, Руководство пользователя

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18 CHAPTER 2. GETTING STARTED
2.6.2 Detector Over Max
If the detector exceeds the programmed maximum value for the given unit, the instrument
flashes the maximum value for the currently selected units and the MAX icon as a warn-
ing. Additionally, the ALARM icon is displayed at the top of the screen and an audio alarm
sounds. The user should be aware that the alarm, including the audio, can only be cleared
by removing the instrument from the radiation field.
Figure 2.7: Detector Over Max (Display Will Flash)
2.6.3 Detector Over Range
If the detector is exposed to high levels of radiation or has an internal malfunction that
causes it to count high or excessively, the unit flashes all 8’s for the currently selected units
as a warning. Additionally, the ALARM icon is displayed at the top of the screen, an audio
alarm sounds (which can be silenced by a long press of the ON/AUD button ), and the OVER-
RANGE icon is displayed. The user should ensure whether this condition is being caused by
a high radiation field, by a shorted cable, or by internal malfunction.
Figure 2.8: Detector Over Range (Display Will Flash)
2.6.4 Detector Overload
As another diagnostic test, the Model 3014 monitors the HV supply’s detector current. A
current overload threshold can be set via Setup Mode. (A setting of 0 disables this alarm.) In
general, this alarm setting can be used to detect when there is some detector failure, a cable
failure, or a possible high level of radiation. When this alarm is triggered, the LCD will display
the OVERLOAD and ALARM icons, three dashes will be displayed in place of the numerical
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