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Model 2241-3RK Response Kit |
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| DETECTORS: Model 44-9 Pancake G-M,
Model 44-2 Gamma Scintillator, Model 133-7 High Range Energy Compensated
G-M CONTROL SWITCH: A 5 position rotating switch to allow for quick change between four detector setups CONNECTOR: Series "C" (others available on request) AUDIO: Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet) ALERT/ALARM: Indicated by enunciator on display and audible tone DISPLAY: 4 digit LCD display with 0.5"(1.3cm) high digits, separate enunciators for display units, alert, alarm, low battery, detector overload, counting overflow, and scaler counting BACKLIGHT: Push-button to activate RATEMETER: Can display in R/hr, Sv/hr, cpm, or cps when control switch is in RATEMETER position DISPLAY RANGE: Auto ranging from 0.0 microR/hr - 9999 R/hr; 0.000 microSv/hr - 9999 Sv/hr; 0 cpm - 999k cpm; or 0 cps - 100k cps LINEARITY: Reading within plus or minus 10% of true value with detector connected SCALER: Activated by push-button in handle (count time adjustable from 1 - 9999 seconds in 1 second intervals) CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided) HIGH VOLTAGE: Four independent controls; each adjustable from 200 - 2500 volts DISCRIMINATOR: Adjustable from 2 - 100 mV OVERLOAD: Indicated by OVERLOAD on display (adjustable depending on detector selected) RESET: Push-button to zero display, acknowledge and/or reset alarm POWER: 2 each "D" cell batteries (housed in sealed compartment that is externally accessible) BATTERY LIFE: Typically 200 hours with alkaline batteries (low battery indicated on display) 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: 6.5"(16.5cm)H X 3.5"(8.9cm)W X 8.5"(21.6cm)L WEIGHT: 3.5 lbs (1.6kg) including batteries If special calibration requirements are not initially specified, calibration will be made based on the default settings shown below:
The following parameters are adjusted by removable switchboard. Once
initial setup and calibration have been completed the switchboard can be
removed without affecting normal operation of the instrument (Model
2241-2 may be ordered without switchboard) |
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Model 44-9 Detector |
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| INDICATED USE: Alpha beta gamma
survey; Frisking DETECTOR: Pancake type halogen quenched G-M WINDOW: 1.7 plus or minus 0.3 mg/cm² mica WINDOW AREA: Active - 15 cm² Open - 12 cm² EFFICIENCY(4pi geometry): Typically 5%-C-14; 22%-Sr-90/Y-90; 19%-Tc-99; 32%-P-32; 15%-Pu-239 SENSITIVITY: Typically 3300 cpm/mR/hr (Cs-137 gamma ) ENERGY RESPONSE: Energy dependent DEAD TIME: Typically 80 microseconds COMPATIBLE INSTRUMENTS: General purpose survey meters, ratemeters, and scalers OPERATING VOLTAGE: 900 volts CONNECTOR: Series "C" (others available ) CONSTRUCTION: Aluminum housing 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: 1.8" (4.6 cm)H X 2.7" (6.9 cm)W X 10.7" (27.2 cm)L WEIGHT: 1 lb (0.5kg) |
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Model 44-2 Detector |
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| INDICATED USE: High energy gamma
detection SCINTILLATOR: 1" (2.5 cm) diameter X 1" (2.5 cm) thick sodium iodide (NaI)Tl scintillator SENSITIVITY: Typically 175 cpm/microR/hr (Cs-137) COMPATIBLE INSTRUMENTS: General purpose survey meters, ratemeters, and scalers TUBE: 1.5:(3.8cm) diameter magnetically shielded photomultiplier OPERATING VOLTAGE: Typically 500 - 1200 volts DYNODE STRING RESISTANCE: 100 megohm CONNECTOR: Series "C" (others available ) CONSTRUCTION: Aluminum housing 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: 2" (5.1 cm) diameter X 7.3" (18.5 cm)L WEIGHT: 1 lb (0.5kg) |
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Model 133-7 Detector |
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| INDICATED USE: High range gamma
measurements DETECTOR: Halogen quenched G-M LINEAR RANGE: 25 mR/hr - 100 R/hr SENSITIVITY: 4.2 cpm/mR/hr (Co-60 gamma) ENERGY RESPONSE: Within ±15% of true value CONSTRUCTION: Anodized aluminum housing TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C) May be certified to operate from -40° F(-40° C) to 150° F(65° C) SIZE: 1" (2.5 cm) diameter X 4" (10.2 cm)L WEIGHT: 0.2 lb (0.07kg) |
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Model 2241-3 Display |
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