Fluke Biomedical 10100AT - Manual (Page 12)

10100AT
Operators Manual
1-6
4. Number of minutes to auto power-down, from 1 to 255
5. Optional Power-On and Test screen messages
Display
The display is a two-line, 20-character alphanumeric PLED (polymer light emitting diode) display with an
approximate character height of 0.5 cm. The display shows all ion chamber/kV filter pack identification
information, numerical measurement results, and other information such as battery level and calibration
date.
Bias Voltage Supply
An electronic bias supply is fixed at a nominal 310 V. The bias voltage is removed from the triaxial input
connector at instrument turnoff. Internal low and high bias voltage test limits are set at 300 and 325 V
respectively.
Power
Continuous operational life of approximately thirty hours is provided by six “AA” alkaline batteries. Auto
power-down feature turns off unit after user-selected period (1-255 min) of unattended operation.
An AC adapter allows line current operation. When the AC adapter is in use, no current is drawn from the
batteries. When the AC adapter is in use, the auto power down feature is disabled, providing continuous
operation. The AC adapter is an unregulated 9v, 200 mA adapter with a center negative, 2 .1 mm plug.
Note: before auto turnoff, unit stores selections of ion chamber, units, and kVp filter pack in nonvolatile
memory. Eliminates manual reselection at next power-up. The default factory setting for the automatic
power-down feature is 15 minutes.
Control Buttons
Power On/Off: initiates power-up and -down sequences
Detector Select: selection of ion chambers, kV filter packs
Units Select: selects measurement units, frame rates
Reset/Measure: starts measurement, provides manual reset (auto reset function is also available in the
Model 35050AT Dosimeter)
Air Density: sets ambient temperature and pressure
Options: selects measurement options and displays diagnostic information such as supply level, ion
chamber leakage, bias voltage, and other diagnostic information
Up, Down: scrolls through list of screen selections, increments / decrements numeric entries. Holding
down the up or down key increases scroll speed.