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Polimaster's PM1604A and PM1604B models are energy-compensated personal dosimeters of pocket size that measure personal dose equivalent Hp(10) and personal dose equivalent rate Hp(10) of both gamma and X-ray radiation.
Pocket dosimeters are recommended for use by professionals who work with or around the radioactive materials. The PM1604A and PM1604B perform the following functions:
- Monitoring and measurement of the ambient dose equivalent and ambient dose equivalent rate across wide energy range: from the natural background level up to 5-10 Sv/h (500-1000 R/h);
- Alerting the user through an audible alarm when the preset dose and/or dose rate thresholds are exceeded;
- Recording and storing data for up to 1000 events (500 DER + 500 DE) in their non-volatile memory;
- Transmitting all recorded data via an infrared channel to a PC for further processing and analysis.
To protect users from overexposure, the dosimeters have two alarm thresholds. If the preset dose and dose rate thresholds are exceeded, the dosimeter immediately alerts the user of the danger of irradiation through an audible alarm.
The instrument's hermetic and shockproof case and the fluorescent backlight on LCD screen allow for easy operation and precision even in the most harsh and unfavorable environments or weather conditions.
If the dosimeter is contaminated with radioactive dust, it can be easily cleaned with radiation decontamination solutions.
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PM1604A
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Detector
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GM tube
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Dose Rate display
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0.01 μSv/h - 6.50 Sv/h
(1 μR/h - 650 R/h), Hp(10)
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Dose Rate Accuracy
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± (15 + 0.02/H + 0.003H) %
where H – dose rate, mSv/h
(in range 1 μSv/h - 5.0 Sv/h)
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Dose measurement
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0.01 μSv - 9.99 Sv
(1 mR - 999 R)
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Dose Accuracy
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± 15% (in range 1 μSv - 9.99 Sv
(100 μR - 999 R))
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Energy range
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0.048 - 6 MeV
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Energy response relative to 0.662 MeV
(137Cs)
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± 30% (in range 0.048 MeV - 3 MeV);
± 50% (in range 3.0 MeV - 6 MeV)
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Survive after momentary influence of maximum
permissible gamma radiation within 5 min:
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50 Sv/h
(5000 R/h)
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Standards compliance
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meets most relevalnt parts of
ANSI N42.20 and IEC 61526 standards
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Alarm type:
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audio
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Physical Parameters
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Dimensions
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50 x 90 x 19 mm
(2'' x 3½'' x ¾'')
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Weight
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85 g (3 oz)
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Environmental Characteristics
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Temperature
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-20 up to +70 °C
(from -4 up to +158 °F)
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Humidity
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up to 98% at 35°C (95°F)
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Environmental protection
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Drop test
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1.5 m (4.9 ft)
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Water resistant
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1 m ( up to 3.3 ft)
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Power
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Batteries
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one CR 2032 lithium battery
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Battery lifetime (average DER not more than 0.3 µSv/h,
alarms activated for not more than 20 s/24 hours)
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9 months
*using LCD backlight not more than 5 s/day
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Battery discharge control
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Pictogram on LCD
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Additional
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Countdown timer
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yes
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Display of time to critical exposure
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Functions
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minutes, hours, day of the week,
date, month, year
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Calendar mode
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alarm clock, timer, stop watch
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PC Communication
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IRDA
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