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Off-white Model 14C Survey Meter with End-Window GM Probe

Model 14C Survey Meter with End-Window GM Probe

A standard survey instrument for nuclear medicine departments

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A standard survey instrument for nuclear medicine departments, the portable Model 14C Survey Meter with End-window Probe meets the essential surveying needs of most nuclear medicine facilities. The end-window probe is used to check hands, clothing, packages, and other surfaces for contamination, and for background readings. For high-range gamma detection, the built-in energy-compensated GM detector with the x1000 multiplier range handles counts up to 2R/hr. The meter features a built-in speaker with ON/OFF switch, front-access calibration controls, push-button reset to zero the meter, and a toggle switch to select FAST (4 sec.) or SLOW (22 sec.) response.

Features

Satisfies NRC requirements for nuclear medicine depts

  • Monitors alpha, beta, and gamma

  • 0-2 R/hr range

  • External pancake GM probe (39” cable included)

  • Internal energy compensated GM detector

  • Five counting scales (x0.1, x1, x10, x100, x1000)

Specifications

Survey Meter:

  • Compatible Detectors: GM

  • Meter Face: 0-2 mR/hr, 0-2 mR/hr, 0-6.6k cpm

  • Meter Face Dimensions: 2.43” l x 1.43” w (6.1 x 3.6 cm)

  • Threshold: 30 mV ± 10 mV

  • Multiplier Ranges: x0.1; x1; x10; x100 for external detector; x1000 for internal detector

  • Internal Detector: Energy-compensated GM, for high range gamma detection only; 2000 mR/hr

  • High Voltage: 900V

  • Response: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) for 90% of final reading

  • Reset: Push button to zero meter after over-range exposure

  • Audio: Built-in unimorph speaker with ON/OFF switch

  • Sensitivity: 2100 cpm/mR/hr for Cs-137

  • Batteries: Two each, size “D”, typical life 600 hours

  • Construction: Painted aluminum housing

  • Dimensions: 8.5” l x 3.5” w x 6.5” h (22 x 9 x 16.5 cm)

  • Weight: 3.5 lb (1.6 kg) including batteries

Pancake GM Probe:

  • Indicated use: Alpha, beta, and gamma surveying; sample counting

  • Detector: Pancake type halogen quenched GMWindow: 1.7 ±0.3 mg/cm2 mica

  • Window Diameter: 1.75” (4 cm)

  • Window Area: 15.5 cm2 active, 12 cm2 open

  • Efficiency (4pi): 5% for C-14, 22% for Sr-90/Y-90, 19% for Tc-99, 32% for P-32, 15% for Pu-239

  • Gamma Sensitivity: 3300 cpm/mR/hr for Cs-137

  • Energy Response: Energy dependent

  • Operating Voltage: 900 volts

  • Protective Screen: 79% open, stainless steel

  • Housing: Painted aluminumCable: 39” l (99 cm), type “C” connectors

  • Dimensions: 1.8” h x 2.7” w x 10.7” l (4.6 x 6.9 x 27.2 cm

  • Weight: 1 lb (0.5 kg)

Item Number

051-014 Survey Meter model 14C with end window GM probe

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