EXPOSURE AND EXPOSURE RATE ACCURACY

     Basic accuracy of Model 35050A is ±1% of reading
     ±2 range resolution steps over range of 18°C to 28°C and ±2% of reading ±2
     range resolution steps over the full operating temperature range of 0°C to 50°C.
     €3% NIST-traceable calibration provided with each system and includes
     effects of models 35050A, 96035B, and 96020C.

EXPOSURE TIME MEASUREMENT

     Exposure time accuracy is ±0.1% of reading ±0.2msec.
     Maximum exposure time is six seconds and measurement resolution is 0.2msec.

MEASUREMENTS MODES

kVp/Dose/Time

     Single shot, direct beam measurement of exposure, kVp, and time
     Autoranging across three decade ranges.
     Auto reset between exposures.
     Display update after each exposure.
     Simultaneous measurement of kVp and exposure rate.

Full Sensitivity Dose

     Autoranging across three decade ranges for sensitive direct beam measurements.
     Automatic drift and offset compensation, and automatic post-exposure display
     hold.

Full Sensitivity Rate

     Measurement range covers a span from low-level image intensifier measurements to
     unattenuated direct beams.
     Display updates once per second
     Automatic offset compensation and nonlinear filtering.
     Autoranging provides five decades of sensitivity ranges
     Display updates once per second.

POWER

     Life ~30 hours with six AA alkaline batteries.
     Automatic power-down after user-selected period of unattended operation (1 -
     255 minutes).
     User selections for ion chamber, units, kV filter pack, temperature, pressure, and
     frame/sec are stored in non- volatile memory before automatic turnoff; eliminates
     manual reselection at power-up.

BIAS VOLTAGE SUPPLY

     Electronic, fixed at 300V.
     Bias voltage is removed from triaxial input connector at instrument turnoff.

CUSTOMIZATION

     Allows user to modify contents of nonvolatile memory including ion chamber and
     kV filter pack conversion factors, temperature and pressure units, radiation units,
     and power down interval.
     A field customization software program is included for use with an IBM-PC or
     compatible.

DISPLAY

     Two-line, 20-character alphanumeric LCD, with 1cm character height.
     Indicates all ion chamber/kV filter pack identification information, numerical
     measurement results, battery level, calibration date, and other information.

WEIGHT

     14lbs/6.4kg.

CONNECTIONS

Model 35080A Interface

     Banana jack
     Input connector pair for kVp signal readout.

Computer Interface

     RS-232.
     Fixed 9,600 baud rate.
     Enables fully-programmable operation and waveform display from a PC with
     optional TRIAD QA for Windows Software.
     RJ-45 cable with adapter for standard PC connection.
     Powered only when connected to computer.

Ion Chamber Input

     Triax, BNC.
     Collector and guard positive-biased relative to ion chamber body and dosimeter
     chassis.

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