HRD-II Mini Electronic Pocket Personal Dosimeter Monitor
 
1.1 Function
The dosimeter is used to monitor the personal dose equivalent (DE) and dose equivalent rate (DER) for X & γ rays radiation. It can give out acoustic and optical alarm signals when the dose of DE or DER scales out the alarm threshold. The product adopts low power consumption single-chip microcomputer, which realizes the functions of real time display of the measured value, acoustic and optical alarm signals of the super threshold, EEPROM data storage, alarm threshold setting, detector fault alarm and battery undervoltage detection.
 
1.2 Main Specifications
 

	Detector	silicon semiconductor detector
Measurem-ent range		Hp(10): 0.0mSv~10Sv H’p(10): 1mSv/h~500mSv/h
Alarm threshold		Hp(10): 1mSv~10Sv, can be set continuously H’p(10): 1mSv/h~500mSv/h, can be set continuously
alarm		Gives audile, visual and LCD indicating alarm for over-threshold, battery- lower , over time, detector failure and DE increment tips. Sound intensity > 80dB at 30cm.
LCD Display		Hp(10): 0.0mSv~9999mSv H’p(10): 0.05mSv/h~999.9mSv/h
energy Response		<±30%(50keV~1.5MeV)
Angle response		To Am-241(60keV),< ±50%(0°～75°) To Cs-137(662keV),< ±20%(0°～75°)
Response linearity		<±20% (1mSv/h~1Sv/h)
Relative to the inherent error		<±10% (1.2mSv/h,Cs-137)
Overload characteristics		>10Sv/h
Power source		Rechargeable lithium battery 3.6V. One full charge may work 200 hours.
Low battery indication		More than 8 hours can last when under-voltage alarm
Temperature effect		<±15%, ( -10℃~+40℃)
Humidity effect		<±10%, RH 40%~90% ,35℃
Weight		About 40g
Dimensions		52㎜×40㎜×14㎜
Data storage and reset		measured data can be stored when power off, the data can be reset when starting up.

 
Designation of the apparatus apartments:

① LCD:4-digit characters liquid crystal display

② LED:luminescence alarm light

③ Keyswitch of mode and operation (Mode)

④ Set key (Set)

⑤ Hole of buzzer

⑥ Probe location

 
Supplied Accessories
(1) manual & software CD 1
(2) warranty card copy 1
(3) certificate 1
(4) charger 1