Ludlum 14C with Energy Compensated Probe
Features a 5-range analog ratemeter and operates two detectors
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The Model 14C General Purpose Survey Meter features a 5-range analog ratemeter and operates two detectors; a built-in internal GM Detecter (0-2000 mR/hr) and an external GM or Scintillation Detector. The cast aluminum housing, with its separate battery compartment and accompanying metal handle, offer an industrial robustness and quality that promotes long-lasting protection and instrument life. The front panel controls include a rotary switch for selecting the five-decade range and instrument shut-off, an audio on/off switch, a fast/slow response switch, a high-voltage display button and a battery test button. A 39" straight type detector cable with "C" style connector is included.
Specifications
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Application: Alpha, Beta and Gamma surveying; Energy compensated GM (used with x 1000 scale only)
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Internal Detector: Range 0-20 mSv/hr (0-2000 mR/hr); Sensitivity 200 cpm per mR/hr; Compatible
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External Detectors: Any GM or Scintillation operating on 900 VDC
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Detector Channels:
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External: x0.1 through x100 range settings
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Internal GM: x1000 setting
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Energy Response: within 15% of true value between 60 keV-3 MeV (internal detector only)
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Linearity: reading within 10% of true value with detector connected
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Meter Dial: 0-2 mR/hr, 0-5 kcpm, BAT TEST (others available)
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Meter: 6.4 cm (2.5 in) arc, 1 mA analog type
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Rotary Selector Switch: Switches between Off,
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Ranges: x0.1, x1, x10, x100, x1000
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Response Switch: Toggles between FAST (4 sec) or SLOW (22 sec) from 10% to 90% of final reading
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Controls:
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Reset Push Button: Zeroes meter
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Battery Push Button: Checks battery status
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Audio Switch: Audio on/off, built-in unimorph speaker, greater than 60 dB at 0.6 meters (2 ft)
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High Voltage: 900 Vdc
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Threshold: -40 mV to 10 mV
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Temperature Range: -20 to 50o C (-4 to 122o F)
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Relative Humidity: < 95%
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Power: 2 each “D” cell batteries
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Battery Life: Typically greater than 2000 hours
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Construction: Cast and drawn aluminum with beige powder coat
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Connector: Series “C” (others available)
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Size: 6.5″ H x 3.5″ W x 8.5″ L
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Weight: 3.5 lb (including batteries)
