GAMMA-AT輻射和自動氣象監測系統

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產品簡介

- 伽馬輻射智能探頭-在每一個獨立的測量通道里都有廣泛的劑量率測量范圍- 正常和緊急操作模式-超過極限值，可進行聽覺和視覺報警-通過電話線和無線電頻道，進行可靠的數據傳輸- 長久指示，每10分鐘更新-數字數據重傳- 外部顯示板-UPS（不間斷電源）- 診斷全處理設備的可操作性- 在每一個通道，有獨立自動測量信息數據庫-不拆卸智能探頭校準- 帶風向和速度，降水和溫度傳感器

詳細介紹

AUTOMATED RADIATION AND WEATHER MONITORING SYSTEM GAMMA-AT

Flexible and reliable multi-channel system for environmental and area radiation monitoring of large radiation-dangerous and radiation-sensitive targets

Features

- Gamma radiation smart probes
- Independent measurement in each channel withtin a wide dose rate measuring range
- Normal and emergency operation modes
- Specifying alarm threhsolds for each smart probe
- Audible and visual alarm at threshold exceeding
- reliable data transfer by telephone lines and radio channels
- Permanent indication updating every 10 min
- Digital data retransmission
- External indication board
- UPS (Uninterruptible Power Supply)
- Full addressing diagnostics of equipment operability
- Independent information databases at each automatic measuring posts
- Calibration without demounting smart probes
- Wind direction and speed, precipitation and temperature sensors

Application

Automatic measuring post (AMP)

Smart probe AT2343 provides absorbed gamma radaition dose rate measuring in the range from 25 nGy/h to 10 Gy/h. Two-chamber Geiger-Muller counters are used as detectors. Data from a smart probe is transmitted to a uniform terminal controller by RS485. Wind speed and direction sensor, precipitation sensor and temperature sensor, external indication board can be connected to the terminal controller. It is possible to provide the terminal controller with a radio unit, a radio station, a radio mast with TL antenna and (or) a telephone unit taking into account communication channels in use. Applied software of automatic measuring post provides digital data forwarding, so it is possible to extend automatic measuring post network to big distances. The system supplies from an uninterruptible power supply. There are two operation modes: an economical mode for operation under normal environment and the mode with frequent data transmission for operation under emergency radiation surrounding. It is possible to create independent databases and maintain data keeping for more that a year due to the nonvolatile memory.

Local response center (LRC)

PC is used as the central control unit, which is delivered together with the terminal controller. Applied software runs under Windows® and provides system configuration, data readout and its processing. There are a map of controlling area and dose rate value in control points on PC display. Dose rate values can be presented as a table or a graph with value averaging for any time period. The processing algorithm detects a sudden dose rate change and switches the emergency operation mode as a result. Alarm threshold exceeding in any smart probe or failure of any system unit are displayed on PC as color zones and accompanied by audible alarm. Acquired from smart probe dose rate results are kept in the datatbase.

Specification

Number of detectors in smart probe	6
Number of smart probes connected to AMP	from 1 to 32
Number of AMPs	from 1 to 128
Absorbed gamma radiation dose rate measuring range	25 nGy/h - 10 Gy/h
Smart probe sensitivity on ¹³⁷Cs	15000 cnt/µGy
Gamma radiation energy range	0.05-1.5 MeV
Intrinsic measurement error	± 15 %
Interface	RS 485
3-level audible and visual alarm
Operating temperature range
smart probes and open-air device	-35 - +50°С
inside units	+5 - +40°С
Maximum distance between a smart probe and terminal controller	1000 m
Radio channel communication range between automatic measuring posts at plain ground	up to 30 km
Protection class
smart probes	IP57
other units	IP54
Radio disturbance
CEI/IEC CISPR 22:1997
Electromagnetic compatibility
CEI/IEC 61000-4-2:1995
IEC 61000-4-3:1995
Power requirements
AC mains, 220 (+22; -33)V, 50±2 Hz
In case of emergency power interruption - accumulator battery 12.6 (+1.3; -1.6) V