NDT

ROFFEY PERSONAL RADIATION MONITOR

ROFFEY PERSONAL RADIATION MONITOR

The series III provides an automatic audible and visual warning of the presence of ionizing radiation.

Product Description

The series III provides an automatic audible and visual warning of the presence of ionizing radiation. The audible alarm is a high-pitched bleep with a repetition rate approximately proportional to the intensity of radiation. The visual alarm is a bright flashing light that is clearly visible to the wearer and other people working in the same area – this is particularly useful in areas of high background noise and for personnel with hearing difficulties. When not exposed to radiation the unit effectively self-checks and briefly emits an audible and visual warning a few times per hour to confirm its state of readiness. The pocket-sized instrument is operated by a single dry cell battery.

  • Audible and visual alarms for improved safety. 
  • Pocket size, high performance, consistent reliability.
  • Detects x-rays, gamma-rays and hard beta-rays.

Specifications: 

  • Radiation Detected: X-ray, gamma-ray and hard beta-ray ionizing radiation.
  • Alarm Signal: High-pitched audible warning pulses with a repetition rate proportional to the dose rate; plus a bright visual indication.
  • Self-Check:  Background pulses at approximately 30 minute intervals.
  • Normal Sensitivity:  CS137 10µSv/h produces pulses at 25 second intervals. CS137 125µSv/h produces pulses at 10 second intervals.
  • Maximum Response Time:  Equal to time between pulses at the applied radiation level. Approx 10 seconds at 225Sv/h.
  • Current Drain:  30pA between warning pulses, 6 mA during warning pulses.
  • Battery:  Single Alkaline-Manganese type battery (e.g. MN1604).
  • Battery Life:  On background typically in excess of 4 months.
  • Controls:  None.
  • Detector:  Geiger-Muller Tube.
  • Overall Size:  60 x 25 x 95 mm.
  • Weight:  120 grams including battery,
  • Operating Temperature Range:  -10 to 65°C.

For Further information please email:  ndt@ndt.com.au            

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