Polimaster PM1621 - Page 9

9
20
Sound pressure level at the distance of
20 cm (for РМ1621М, РМ1621МА), no
less
85 dB (А).
21
Power supply
1.5 (+ 0.1; minus 0.4) V (one AA type
battery)
22
Period of continuous operation of the
dosimeter from one battery, using LCD
backlight not more than 20 s/day,
audible alarm – not more than 20 s/day
and at an average value of the
measured DER up to 0.3 Sv/h:
- at a temperature from 0 up to 60 C
12 months
- at a temperature minus 40 C, at least:
6 months
23
Protection degree of the dosimeter’s
case
IP67
24
The dosimeter is proof against the
action of:
- temperature of an ambient air from
minus 20 up to plus 60 C with indication
of measurement results on LCD;
- temperature of an ambient air from
minus 40 up to minus 20 C without
indication of measurement results on
LCD but with recording of measurement
results in a non-volatile memory;
- relative humidity of an ambient air up
to 98 % at 35 C;
- atmosphere pressure from 84 up to
106,7 kPa
25
The dosimeter is proof against:
- sinusoidal vibration in the frequency
range 5 - 35 Hz and bias amplitude for
frequencies lower than the transition
frequency 0.75 mm;
- shocks with acceleration 100 m/s
2
,
duration of shock pulse 2-50 ms, shock
rate is 60 - 180 shocks per minute
26
The dosimeter meets drop test against a
concrete surface from the height
0,7 m
27
The dosimeter is proof against the
action of static and variable magnetic
fields of strength
up to 400 А/m
28
The dosimeter is proof against the action of radio frequency electromagnetic fields up
to 30 V/m in the frequency range from 80 to 1000 MHz, from 800 to 960 MHz, from
1.4 to 2.5 HHz of strength (in electromagnetic emission envoronment of digital
radiophone)
- the dosimeter is proof against the action of electrostatic discharges, test level 3 (air
discharge, 8 kV, contact discharge 6 kV) , performance criterion В;
- dosimeter corresponds electromagnetic compatibility state standard of
manufacturing country (EN 55022:1998 (class B)) requirements by the level of emitted
radio noise
29
The dosimeter in a transport package is
proof against the action of:
- temperature from minus 50 up to plus
50 C;
- humidity up to 100 % at 40 C;
- shocks with acceleration 98 m/s
2
,
duration 16 ms;
- vibrations with frequency 5-35 Hz and
bias amplitude 0.75 mm