详情
SE INTERNATIONAL MONITOR 4
Same Monitor 4. New ergonomic design. The M4 and M4EC are compact, general-purpose survey meters capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. A red count light flashes and a beep sounds with each event detected. The Monitor 4EC offers a more linear reading for gamma and x-rays (above 40 keV).
Description
The M4 and M4EC are compact, ergonomic, general purpose survey meters capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. A red count light flashes and a beep sounds with each event detected. The Monitor 4EC offers a more linear reading for gamma and x-rays (above 40 keV).
Specification
Detector Monitor 4: Halogen-quenched uncompensated GM tube with thin mica window 1.5-2.0 mg/cm2 thick. Monitor 4EC: Halogen-quenched GM tube, energy compensated sidewall 2mm tin filter. Thin mica window 1.5-2.0 mg/cm2 thick.
Energy Sensitivity 1000 CPM/mR/hr (Cs137). 4EC is the same as M4 except the energy response for gamma and x-rays through the detector sidewall is flat within +61% or -26% over the range of 40 keV to 100 keV, and within +35% or -17% over the range of 100 keV to 1.3 MeV.
Operating Range 0-.5, 0-5, 0-50 mR/hr 0-500, 0-5,000, 0-50,000 CPM or 0-5, 0-50, 0-500 µSv/hr (SI Scale Meter Option)
Accuracy Typically ±15% of reading (Cs137)
Display Analog Meter holds full scale in fields as high as 100X maximum reading. CPM & mR/hr scale. Optional SI Scale Meter Available
Audio Indicator Internally mounted beeper
Power Requirements 9-volt alkaline (included) Approx. 2,000 hrs at background
Temperature Range -20° to 55°C (-4° to 131°F).
Weight M4: 200 g (7.1 oz) M4EC: 224 g (7.9 oz)
Outputs Headphone 3.5mm jack to count to computer or datalogger.
Size 209 x 71 x 50 mm (8.2 x 2.8 x 1.9 in.)
Includes Carrying Case w/ Belt Clip
Options SI Meter Option, Observer Software, NIST Calibration
Limited Warranty 1 year limited warranty
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