CDX 2000B Electrometer
Wide Range for Many Applications
Wide amp and coulomb range is excellent for absolute dosimetry measurements with farmer type and parallel plate ion chambers.
Low Noise, Repeatable Measurements
0.1% repeatability and exceptionally low leakage of less than 1 fA.
Digital filter eliminates nearly all the effects of noise, resulting in stable, exact measurements.
Specifications
| REF Number | 90001 |
|---|---|
| Height | 7 cm (2.75 in) |
| Width | 22.2 cm (8.24 in) |
| Length | 23 cm (9 in) |
| Weight | 1.4 kg (3.00 lbs) |
| 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 |
| Repeatability | ± 0.1% |
| Long-Term Stability | 0.5% (over one year) |
| Stabilization Time | ± 0.1% |
| Response Time | < 3 s |
| 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 |
| Bias Voltage | Nominal ± 450 volt bias 5 USER BIAS SETTINGS: -450, - 300, - 150, 0; 150, 300, 450 (VDC) ACCURACY: ± 0.3 volt |
| 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 |
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Support
Product Resources
Publications
View publications related to this product from experts in the fields of medical physics and oncology.
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Tech Notes
Find detailed instructions on how to setup and execute common processes from our experienced technicians.
Go to Tech Notes »Frequently Asked Questions
- How often should I send my electrometer in for calibration?
The IEC (International Electrotechnical Commission) recommends electrometer calibration every two years to assure optimal performance.
- IEC 60731 – Medical electrical equipment – Dosimeters with ion chambers such as used in radiotherapy.
- IEC 61674 – Medical electrical equipment – Dosimeters with ion chambers and/or semi-conductor detectors as used in X-ray diagnostic imaging.
Standard Imaging can coordinate your calibration at an accredited ADCL, but also provides free inspection and testing services, as well as expedited repair service, if necessary. Our goal is a two-week turnaround upon receipt of equipment, although actual time may vary depending on the ADCL. Request Service »