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Model TBM-3S and TBM-3SR PANCAKE GM SURVEY METER |
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Radiation detection/civil defense, for emergency response
personnel, in the event of a nuclear crisis. |
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| TBM-3SR with beta slide window |
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The total weight of this superb alpha-beta-gamma survey meter with its
internal standard pancake GM detector and 200 hour plus 9 volt battery
is only 22 ounces. The three LINEAR ranges are: 0-500, 5000, and 50,000
cpm and 0-0.15, 1.5 and 15 mR/hr. The anti saturation circuit has been
designed and tested to 100 R/hr. Thousands are in use around the
world. Cited by the National Institute of Standards
and Technology, SP 981, for Fire Department use and emergency response
personnel.
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DS-TBM3S Survey Meter |
$525.00 |
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DS-TBM3SR Survey Meter with beta slide window |
$555.00 |
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SPECIFICATIONS:
- Meter:
TBM-3: 2-1/2'' Rectangular.
TBM-3S & TBM-3SR: 2-1/2'' Ruggedized.
- Ranges: 3 ranges, linear: 0-500; 0-5,000; 0-50,000 cpm
(0-;15; 1.5; 15 mR/h).*
- Switch Positions: Off, Battery Test, X100, X10, X1.
- Audio:
TBM-3: internally mounted speaker.
TBM-3S & TBM-3SR: sonalert with volume control.
- Detector: T-1190 ``pancake GM tube''
- Diameter: 2''; 5cm
- Window Diameter: 1-3/4''; 4.5 cm
- Window Thickness: 1.5 mg/cm2.
- Quench Gas: Halogen for long life.
- Background: Typical 50 cpm. Thin Profile of tube (13mm) gives
low background.
- Efficiency: 100% for all Betas and Alphas that
have the energy to penetrate the thin window. Gamma sensitivity
nominal is 3,500 cpm/mR/hr (based on Cs 137).
- Physical dimensions:
3'' Wide x 5-1/4'' Long x 2-1/4'' High. Excluding meter and handle.
(7.6 cm x 13.3 cm x 6 cm)
- Beta Shield: Methacrylate 0.125'', 3.1 mm.
- Calibration: Single master calibration pot as well as
individual cal pots for each range.
- Power: 9 volt ``transistor'' battery; Eveready 1222, or
equivalent.
- Battery Life: 100 hours in normal operation.
- Handle: Swivel type, polished anodized aluminum.
(Optional Detachable Handle TBM-3SR(DL) Upon Request)
- Weight: 22 oz; 625 grams.
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