Ludlum Measurements 3014, Руководство пользователя

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12 CHAPTER 1. INTRODUCTION
The display will be automatically back-lit if light levels are low or can be set to a user defined
light level. The display back-light can also be configured for “Continuous On” operation.
RATE, MAX, COUNT, and DOSE modes can be silent or utilize a “click” audio; the “click” au-
dio is always silent during COUNT mode by default. A "sigma" audio mode can be enabled
(disabling the "click" audio) in RATE and MAX modes when scintillator detectors are used,
and this mode makes it easy for the user to find small increases above the background radia-
tion level. In this mode, the instrument measures background for 8 seconds after power-up,
and then beeps whenever the rate increases by a small amount. Users are freed from watch-
ing the numeric value to "find" something. They can simply listen for multiple beeps.
Setup of the instrument is accomplished through the front-panel buttons, or through Lumic
2.0 software available from Ludlum Measurements.
Front-panel setup can be disabled via the internal switch on the Model 3014 in order to pro-
tect settings from inadvertent changes. When the settings are protected, the user can view
the settings or modify a limited number of settings as defined with the Lumic software. Us-
ing the Lumic software, the Model 3014 can be configured to allow changes to the alarms
and or count time even when in protect mode.
The unit is operated with four alkaline AA batteries for operation from -20 to 50 °C (-5 to 122
°F). Battery life is approximately 175 hours under normal usage. A low-battery indicator on
the LCD warns when less than 16 hours of battery life remain.
The Model 3014 may optionally be provided with a 1/8-inch stereo headphone jack that
would allow for headphone use for audio output. It is located to the left of the detector
connector.
If a headphone jack is not in use, the Model 3014 may optionally be provided with an RS-232
serial output for connection to PC or other electronic device.
For more advanced use: See Appendix A for information on our Auxiliary Communications
features, which allow the instrument to expand its capabilities with a variety of external de-
vices through a standard serial interface.
Ludlum Measurements, Inc.