Polimaster PM1703MO-1 User Manual

The LCD screen may display any of the following information:
- gamma Dose Equivalent Rate (DER) in µR/h;
- Dose Equivalent (DЕ) in µR;
- n coefficient: number of mean square deviations for the gamma threshold (also
called “alarm multiplier”);
- Messages "tSt", "CAL", "OL", "oFF", "bAt", "ot", etc.;
- “
” audio alarm sign (if audio alarm is enabled);
- “
” vibration alarm sign (if vibration alarm is enabled);
- Blinking “h” (history) symbol
(in the Search and DER measurement modes) -
indicates that there has been an alarm activation and information about it hasn’t been
uploaded to a computer;
- Blinking “S” (search) symbol – indicates that the Search mode is currently on;
- Critical battery discharge: displayed when the battery voltage drops below
1.15 V.
An analogue bar in the lower area of the LCD display indicates the time left until
self-tests or background calibration are completed.
In the Search mode, DER measurement mode and DE indication mode the
analogue scale segments represent the dynamics of radiation environment change. The
bar represents a relative excess of the measured value over the set alarm threshold.
4.2 Specifications
Detectors
CsI (Tl) scintillator
Geiger-Muller tube
Sensitivity (for
137
Cs) 1 cps/(µR/h) (100 cps/(µSv/h))
Sensitivity (for
241
Am) 0.7 cps/(µR/h) (70 cps/(µSv/h))
Energy Range (measurement mode)
Energy Range (search mode)
60 keV – 1.33 MeV
Meets the ANSI N42.33 -2005 (6.3.1)
requirements
60 keV – 3.0 MeV
DER measurement Range
DER indication Range
10 µR/h – 999 R/h
1 µR/h – 999 R/h
Maximum permissible intrinsic relative error of
DER measurement in measurement range
±(20+ К/Н) %,
where Н - DER value, mR/h;
К – coefficient 0.5 mR/h
DE measurement range
DE indication range
10 µR – 999 R
0 µR – 999 R
Maximum permissible intrinsic relative error of DE
measurement in measurement range
± 20 %
Response time (time to alarm) at dose rate increase
by 50 µR/h for 0.5 s produced by
137
Cs,
241
Am,
60
Co
at the radiation background 20 µR/h, not more
2 s
Meets the ANSI N42.32 -2006 (6.3.1)
requirements
5

Polimaster PM1703MO-1 Specifications

General

Brand	Polimaster
Model	PM1703MO-1
Category	Measuring Instruments
Language	English