Survey Meter with Pancake GM Probe
Satisfies NRC requirements for nuclear medicine departments
  • 100% digital microprocessor controlled with analog display
  • Monitors alpha, beta and gamma
  • External pancake GM probe (39" cable included)
  • Internal energy compensated GM detector
  • Fully auto-ranging up to 2R
  • Select CPM or dose monitoring with front panel switch
  • Automatic diagnostics for low battery, probe overload and HV out of range
This microprocessor-controlled meter features cutting-edge technology to ensure both ease of use and accurate, reliable readings. Designed specifically for nuclear medicine, it detects radiation using 100% digital technology, yet displays results on an easy-to-read analog scale. Fully auto-ranging, the meter features an internal energy compensated detector and an external pancake probe with four internal and four external ranges. Individual calibration controls for each range and each probe, cpm and gamma dose (mR/hr). Select either counts per minute (CPM) or dose mode using a simple switch, conveniently located on the front panel. Identifying the scale in use is visually apparent with two color scales (internal and external detector). Automatic diagnostics for low battery, probe overload and HV out of range help assure top performance.

Specifications

Survey Meter:
  • Compatible Detector: GM
  • Meter Face: 0-2 mR/hr, 0 - 0.2 mR/hr and 0-500 cpm
  • Meter Face Dimensions: 3.62" l x 1.62" w (9.2 x 4.1 cm)
  • Threshold: 50 mV ± 5 mV
  • Multiplier Ranges: Four linear ranges x1; x10; x100 and x1000 for external and internal detector
  • Fully auto-ranging:
    - Internal: 0-2, 0-20, 0-200 & 0-2,000 mR/hr
    - External: 0 - 0.2, 0 – 2, 0 – 20 and 0 – 200 mR/hr; 0 –500, 0 – 5,000, 0 –50,000 and 0 – 500,000 cpm
  • Internal Detector: Energy-compensated GM, 50 keV – 1.5 MeV ± 15%, for high range gamma detection only; 2000 mR/hr
  • Dual High Voltage Supplies: Internal detector 535 VDC, external detector 900 VDC
  • Response: Optimized for each range from 4 seconds to 20 seconds full scale
  • Reset: Momentary toggle switch to zero meter
  • Audio: Built-in piezo speaker with ON/OFF switch
  • Sensitivity:
    - Internal detector: 450 c/mR/hr for Cs-137
    - External detector: 2500 c/mR/hr for Cs-137
  • Batteries: Six each, size “AA”, typical life 600 hours
  • Construction: White catalyzed polyurethane coated aluminum housing
  • Dimensions: 7.5" l x 4.875" w x 6.75" h (19 x 12.4 x 17.14 cm)
  • Weight: 2.5 lb (1.2 kg) including batteries
Pancake Gm Probe:
  • Indicated use: Alpha, beta and gamma, surveying, gamma dose or cpm; sample counting
  • Detector: Pancake type halogen quenched GM
  • Window: 1.6 ±0.3 mg/cm2 mica
  • Window Diameter: 1.75" (4 cm)
  • Window Area: 15.5 cm2 active, 12 cm2 open
  • Efficiency (4pi): 10.6% for C-14, 27% for Sr-90 / Y-90, 20% for Tc-99, 22% for P-32, 16% for Pu-239, 6% for P-33
  • Gamma Sensitivity: 2500 c/mR/hr for Cs-137
  • Energy Response: Energy dependent
  • Operating Voltage: 900 volts
  • Protective Screen: 72% open, phosphorus bronze
  • Housing: Catalyzed polyurethane coated aluminum
  • Cable: 39" l (99 cm), type “BNC” connectors
  • Dimensions: 10.7" l x 2.7" w x 2" h (27.2 x 6.9 x 5.1 cm)
  • Weight: 0.8 lb (0.4 kg)

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