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
