Features
The PRIMALERT Digital Area Monitors are designed for a wide range of radiation area monitoring applications. They are completely self-contained units with energy compensated GM detectors, AC powered with internal battery backup and have user settable low and high alarms. An optional remote alarm is available for added security.
Applications
The PRIMALERT Digital Area Monitors can be used wherever there is a need to detect and warn personnel of increasing radiation levels and to control the exposure of personnel to gamma radiation. The versatility of the PRIM ALERT allows it to be used from industrial applications to medical settings.
Features
- Key Features
- LED digital display
- Low and High alarm indicators
- Programmable alarm indicator
- Optional remote
- Detector Fail indicator
- Battery backup
- Data output/RS-232
- Two configurations available with internal energy compensated GM detectors:
- mR/hr to 1 R/hr (05-443)
- 1 mR/hr to 4 R/hr (05-444)
- Simple installation and setup
- Anti-jam circuitry prevents erroneous readings at tube saturation
- Calibration controls easily accessed through front panel
Specifications
Detector Indicated use
Radiation area monitoring
Internal GM detector range
Model 05-443 0.1 mR/hr to 1 R/hr
Model 05-444 1 mR/hr to 4 R/hr
Display
4 digit LED display with 0.8 in (2 cm) character height
Display range
000.0 to 9999
Display units
Can be made to display in μR/hr, mR/hr, R/h, μSv/h, mSv/h, Sv/h, cpm, cps and others
Linearity
Reading within ± 10% of true value with detector connected
Response
Typically 3 seconds from 10% to 90% of final reading
Status (green light)
Indicates the instrument is functioning properly
Low alarm
Indicated by a yellow light and slow beep (1 per sec) audible tone (can be set at any point from 0.0 to 999
High alarm
Indicated by a red light and fast beep (4 per sec) audible tone (can be set at any point from 0.0 to 9999)
Detector fail
Red light and audible tone; > 68 dB at 2 ft indicates detector overload, no count from detector, or instrument failure
Low battery (yellow)
Indicates < 2 hours of battery power remaining
Calibration controls
Accessible from front of instrument (protective cover provided)
High voltage
Adjustable from 200 to 2500 V
Threshold
Adjustable from 2 to 100 mV
Dead time
Adjustable to compensate for dead time of the detector and electronics (can be read on the display)
Overload
Senses detector saturation (indicated by display reading “-OL”)
Over range
Indicates the radiation field being measured has exceeded the counting range of the instrument (indicated by display reading “—-”)
Data output
9 pin connector providing 5 decade log output, RS-232 output, signal ground connection, FAIL and Alarm signals (current sink), and direct connection to battery and ground
Power requirements
95 to 135 VAC (178 to 240 VAC available), 50 to 60 Hz single phase (< 100 mA), 6 V sealed lead acid rechargeable battery (built-in)
Battery life
Typically 48 hours in non-alarm condition, 12 hours in alarm condition
Battery charger
Battery is continuously trickle charged when instrument is connected to line power and turned on
Construction
Aluminum housing with white polyurethane enamel paint
Temperature range
4º to 122ºF (- 20º to 50ºC). May be certified for operation from – 40º to 150ºF (- 40º to 65ºC)
Size
9.7 (w) x 2.5 (d) x 7.4 in (h) (24.6 x 6.4 x 18.7 cm)
Weight
6.5 lb (2.3 kg)
Product Number: 05-443 and 05-444
Options
05-443 PRIMALERT Digital Area Monitor with internal energy compensated 0.1 mR/hr to 1 R/hr GM detector
05-444 PRIMALERT Digital Area Monitor with internal energy compensated 1 mR/hr to 4 R/hr GM detector
05-446 Remote Display
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