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Model 15 Survey Meter |
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PART NUMBER:48-1614 |
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beta-gamma survey DETECTORS: Controlled by selector switch NEUTRON: Model 42-9 BF³ proportional detector with 3"(7.6 cm) diameter cadmium lined moderator for fast neutrons (remove detector from moderator for thermal neutrons) ENERGY RESPONSE: Count response is not linear throughout energy spectrum (0.025 - 8 MeV) SENSITIVITY: Typically 60 cpm/mrem/hr (AmBe fast neutrons) GAMMA REJECTION: Less than 10 cpm through 10 R/hr ALPHA BETA-GAMMA: Model 44-7 thin end window G-M detector (others available) WINDOW: 1.7 plus or minus 0.3 mg/cm² mica WINDOW AREA: Active - 6.4 cm² Open - 5.2 cm² EFFICIENCY(2pi geometry): Typically 5% - 14C; 20% - 90Sr/90Y; 15% - 239Pu SENSITIVITY: Typically 2100 cpm/mR/hr (137Cs gamma) METER DIAL: 0 - 500 cpm, 0 - 2.5 kV, BAT TEST (others available) MULTIPLIERS: X1, X10, X100, X1000 LINEARITY: Reading within plus or minus 10% of true value AUDIO: Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet) CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided) RESPONSE: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading RESET: Push-button to zero meter POWER: 2 each "D" cell batteries (housed in sealed compartment that is externally accessible) BATTERY LIFE: Typically 600 hours with alkaline batteries (battery condition can be checked on meter) METER: 2.5"(6.4cm) arc, 1 mA analog type CONSTRUCTION: Cast and drawn aluminum with beige polyurethane enamel paint TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C) May be certified for operation from -40° F(-40° C) to 150° F(65° C) SIZE: 12.5"(31.8cm)H X 3.5"(8.9cm)W X 8.5"(21.6cm)L WEIGHT: 8 lbs(3.7 kg) including batteries |
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Common Meter Dial |
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