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Radiation Detection

Area Monitors Portable -       AMP 200

PDF file   AMP - 50      AMP - 100

The AMP-200, or Area Monitor Probe, is a GM tube-based rate meter.  It has been designed specifically to be used in  high dose rate fields. The AMP-200’s detector features linear response from 1 R/h to 15,000 R/h  ( 10 mSv/h  to 150 Sv/h ). 
More importantly, since the probe’s sensitive electronics are located far from the high field (25 to 350 feet away), they are not subject to destructive gamma exposure.  Thus, the probe head may be located near a filter cube, rad waste stream, resin tank, or even inside the fuel pool (to take advantage of waterproof characteristics).  The AMP-200 may be used one of 2  ways: by locally reading the smoothed digital display via the hand-held meter, or by connecting the meter to a  Remote Monitoring  System (e.g. wired DDC 16 or wireless WRMPlus) and TeleMap.

Features

Wide range response from 1 R/h to 15,000 R/h ( 10 mSv/h to 150 Sv/h) 
Ruggedized construction, waterproof detector housing and cable
Quick-disconnect connectors allow customization of cable length and facilitate easy de-contamination
Built-in communication connection for use with Area Monitor or WRM transmitter
 “Smoothed” digital display offers accurate, stable readings
User-selectable internal alarm threshold

Applications

Real-time monitor applications. For example, the probe head may be placed directly into a filter cube or  against a resin tank for the purpose of providing survey results
Replacement of traditionally “difficult to calibrate” underwater instruments
Provides real-time, remote monitoring in geometries developed for extendible  “pole” rate meters (TelePole, Teletector,etc.)
Local readout of hand-held meter allows for use as a portable survey instrument

Technical Description 

The Area Monitor Probe (AMP-200) is a high-range GM tube-based detector designed to be continuously used in areas where high exposure levels  exists. 

The instrument consists of three parts: the Meter box (which includes the display unit, operating pushbuttons and detector’s electronics); The probe head, which contains the GM tube; and the connecting cable,  which is fitted with quick-connect-type connectors at each end.  The AMP-200’s connections and probe head feature watertight sealing to allow for use in underwater applications.

 

Specifications

Detector: GM-tube (4G60M)
Energy Range: 60 KeV  to 2 MeV.
Measuring Range: 1 R/h to 15,000 R/h (10 mSv/h to 150 Sv/h)
 Sensitivity (137Cs): 60 cps per R/hr
 Accuracy: ±10% of reading within measuring range
Units: mR/h and mR or m Sv/h and m Sv
Controls: Four key keypad with positive feedback. Key combinations for programming operating parameters.
Power Source: One 9-volt cell battery or external 9V power supply, 50 hours minimum continuous operation, using an alkaline battery (speaker off)
Automatic battery check under full load (without backlighting)
Display : LCD Display showing: Detector failure, Low battery, Overflow, Threshold
Temperature Range:  Operation: -10° C to +50° C (15° F to 122° F)
Storage: -20° C to +60° C (-5° F to 140° F)
Humidity Range  40% to 95% RH (non condensing)
Casing Material: Meter: Aluminum
Detector: Aluminum, waterproof
Dimensions: Meter: 2.7” wide, 4.7” high, 1.25” deep
Detector: L
ength: 4.25”, diameter: 0.8”
Weight:  Meter: 340 g (0.76 lbs) including battery
Detector: 131 g (0.29 lbs) without cable
Std. Cable Length: 25 ft.
Max. Cable Length: 350 ft.
Expected detector lifetime: 
250 h  at  1000 R/h

Accuracy, range and sensitivity details are related to 137Cs

Ordering Number:_ #4-0026

 

Send mail to dleas@arrowtechinc.com    with questions or comments about this site.
Last modified:  03/10/08