Polimaster PM1401MA User Manual

7
1.3 Display and control buttons
The instrument contains the following control and display components:
1. MODE button is used for turning the instrument ON; switching between
operation modes; background update (calibration); changing parameters in Setup
Menu.
2. LIGHT button is used for switching on the backlight, enabling IR-
communication with PC, changing parameters in Setup mode, turning the
instrument OFF.
3. IR port, is used for the advanced instrument setup and data download.
4. Alarm LED.
5. Battery compartment cover.
6. External vibrator socket.
7. Audible alarm buzzer.
8. LCD.
The LCD of the instrument may display any of the following information:
• gamma Dose Equivalent Rate in µSv/h or µR/h;
• gamma countrate in counts per second (s
-1
);
• average statistical error of the measured value in %;
• n coefficients: number of mean square deviations for the gamma threshold;
• Messages: "tESt", "CAL", “bAtt” , "OL", "oFF", "bt", etc.;
• Critical battery discharge : displayed when the battery voltage drops below
1.1 V.
The analog bar in the middle of the LCD display indicates the time left until self-tests
or the background calibration are completed. In the Search Mode, the bar represents a
relative value of a gamma count rate excess over the calculated alarm threshold (the point at
which the alarm is expected to be set off).
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Polimaster PM1401MA Specifications

General

Detectors Gamma	CsI(Tl) scintillator
Sensitivity, gamma radiation Cs-137 Am-241	100 s-1/(µSv/h) / (1 s-1/(µR/h)) 100 s-1/(µSv/h) / (1 s-1/(µR/h))
Energy range Gamma	0.06 – 3.0 MeV
Indication range Gamma	0.01 µSv/h – 99.99 µSv/h / (1 µR/h – 9999 µR/h)
Response time	0.25 s
Measurement range Gamma (± 30 % at 137Cs)	0.1 µSv/h – 70 µSv/h / (10 µR/h – 7000 µR/h)
Alarm types	visual, audible and external vibrator
Drop test	1, 5 m (5 ft.) onto concrete surface
Power requirements	one AA size battery
Battery lifetime	Up to 1000 hours
Communication	IR interface
Memory	990 data points
Environmental Temperature range LCD indication Humidity	-30 to +50 °C (-22 to +122 °F ) -15 to +50 °C (+5 to +122, 5 °F ) up to 95 % at +35 °C (+95 °F )
Ingress Protection Rating	IP65

Weight and Dimensions

Dimensions	110х57х32 mm (41/3 х 21/4 х 11/4 in)
Weight, including battery	320 g. (11.29 oz)