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Radiation Detectors, Monitors & Alarms

Area Zone Monitors

NZM: Microprocessor based Digital Wall Mount Area Monitor

The all new NZM, is a microprocessor based Digital Wall-Mount Area Monitor, designed for clear visibility and ease of use. Featuring a wall-mount chassis, the Model NZM has a four digit LED display, which is readable from up to 30 feet away. The backlit indicators along with audible alarms warn of low radiation, high radiation, instrument failure, detector failure and low battery.

NZM comes with battery backup which provides long hours of additional use after the primary power is removed. NZM comes with an option of an external detector in lieu of an internal detector.

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Technical Details
Detector
Application Areas Continuous radiation level monitoring in
  • Medical radiation therapy units
  • Industrial radiological installations
  • Radiation source rooms
  • Other radio-isotope laboratories
Radiation Detected Gamma, X-Ray
Detector Internally / Externally mounted halogen quenched GM detector
Display Four Digit LED Display, with separate LEDs for visual alarm indications
Audio Settable low and high alarms, Detector failure alarm
Measuring Range (Select One) Available Units:
mR/h, µR/h, R/h, µSv/h, mSv/h, CPS, CPM, kCPM
0.1 - 999.9
0.1 – 9999
1 – 99.99
10 – 999.9
Other Outputs(Optional)
  • RS-232 for PC connectivity
  • Relay output for
  • Analog output: 5 decade logarithmic voltage output
Energy Response 100 KeV to 2 MeV
Accuracy ±15% when calibrated with Cs 137
Operating Temp 0°C to 50°C
EHT 500V (nominal) Regulated
Power 230 Volts (± 10%), with built-in battery backup
Dimensions (in mm) 240 x 190 x 60 + External Probe
Weight (with battery) 2350 grams + External probe
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ZM: Digital Gamma Area Zone Monitor

Digital Gamma Area Zone Monitor (ZM) is an instrument designed to measure and monitor gamma radiation exposure rates in the working areas of industrial radiological installation, radiation source rooms and other radio-isotope laboratories. Audio/Visual alarm is provided to alert the radiation worker when radiation level exceeds the normal or other limits which can be pre-set. ZM incorporates a GM counter and works from mains with a battery back-up in case of mains failure. The self-diagnostic circuitry of the ZM gives a non-resettable alarm if there is a circuit/GM Tube failure.

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Technical Details
Detector
Continuous radiation level monitoring in Radiation contamination detection:
  • Medical radiation therapy units
  • Industrial radiological installations
  • Radiation source rooms
  • Other radio-isotope laboratories
Radiation Detected Gamma, X-Ray
Detector Internally / Externally mounted halogen quenched GM detector
Display Four Digit LED Display, with separate flashing LED for visual alarm
Audio Settable piezo buzzer alarm,
Detector failure alarm
Measuring Range 0 – 100 mR/h
Other Outputs (Optional)
  • Relay output for -------
  • ----------
Energy Response 100 KeV to 2 MeV
Accuracy ±15% when calibrated with Cs 137
Operating Temp 0°C to 50°C
EHT 500V (nominal) Regulated
Power 230 Volts (± 10%), with built-in battery backup
Dimensions (in mm) 260 x 150 x 100 + External Probe
Weight (with battery) 2500 grams + External probe
Download Brochure