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CDX 2000B Electrometer

cdx2000b_750x500
  Low Noise, Repeatable Measurements The CDX 2000B is a stable, lightweight electrometer for use in external beam dosimetry measurements and precise HDR brachytherapy calibrations.   Easy to use with convenient features Control operations with a fast, push button interface. With user activated ...Read more



  • Description
  • Specifications

 

Low Noise, Repeatable Measurements

The CDX 2000B is a stable, lightweight electrometer for use in external beam dosimetry measurements and precise HDR brachytherapy calibrations.

 

Easy to use with convenient features

Control operations with a fast, push button interface. With user activated zeroing, just press a button and it is ready to measure. The CDX 2000B operates off a rechargeable battery for up to 8 hours of continuous use.

 

Enhanced bias selection

The CDX 2000B allows a wide assortment of bias settings for performing both TG-51 and now TRS-398 measurements with support for 1/3 bias ratio settings. Apply (+/-) 450, 300, or 150 VDC to your chamber of choice with no external bias supply required.

 

Unique timing capabilities

The CDX 2000B can capture charge for a selected amount of time during an exposure, thereby eliminating end effects or other variable portions of an exposure. This timed collection application is useful during the measurement of high dose rate brachytherapy sources, allowing the measurement of charge only during the time the source is in place and the rate is constant.

 

 

Dimensions

  • Height 7 cm
  • Width 22.2 cm
  • Length 23 cm
  • Weight 1.4 kg

 

Three Modes

  • Rate 0.001 nA – 500.00 nA, 1 pA resolution
  • Charge 0.01 nC – 999,999 nC, 10 pC resolution
  • Combined Accumulated charge and the current readings are displayed simultaneously

 

Charge Collections

  • Timed: User set duration (Range: 0 – 600 sec; Increment: 15 sec; Resolution: 1 sec)
  • Continuous: Unlimited duration with manual stop

 

Bias Voltage

  • Nominal ± 450 volt bias
  • 5 User Bias Setting: -450, - 300, - 150, 0; 150, 300, 450 (VDC)
  • Accuracy ± 0.3 volt

 

Specifications

  • Repeatability ± 0.1%
  • Long-Term Stability 0.5% (over one year)
  • Stabilization Time ± 0.1%
  • Response Time 3s
  • Non-Linearity ± 0.25%
  • Conformity CE 93/42/EEC
  • Zero Drift ± 0.25%
  • Zero Shift ± 0.25%
  • Display: Backlit LCD, 2 x 20 with 5/16" characters
  • Input: BNC two lug, triaxial connector
  • Zeroing: Automatic zero function, user activated
  • Output: Isolated RS-232; unidirectional 19,200 baud rate; 8 data bits; no parity; 1 stop bit
  • Power: 100-240 VAC, 0.5 A max, 50/60 Hz input to external power supply, 9 VDC, 1.7 A power supply output to electrometer input, UL/TUL listed power supply; internal battery: 8 hrs per charge
  • Product Standards: CE 93/42/EEC