Primalert 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 9999). 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”)
Overrange 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). Primalert 35: 105-125 V/60 Hz/8 W
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); Primalert 35 3.5 (w) x 6 (h) x 1.5 in (t)
Weight 6.5 lb (2.3 kg); Primalert 35 2 lb (0.9 kg)

05-446 OPTIONAL REMOTE DISPLAY
Indicated Use Remote display for PRIMALERT Area Monitors Models
05-443 and 05-444
Status (green light) Indicates the instrument is functioning properly
High alarm (red LED) Indicates the radiation level exceeds the high alarm point. Detector fail (red LED) Indicates detector overload, no count from detector, or instrument failure.
Audio Unimorph type with ON/OFF switch (> 68 dB at 2 ft)
Power Requirements Provided by PRIMALERT (20 ft cable included)
Construction Aluminum housing with ivory polyurethane enamel paint
Temperature Range - 4º to 122ºF (- 20º to 50ºC). May be certified for operation from - 40º to 150ºF (- 40º to 65ºC)
Size 6 (w) x 2 (d) x 7 in (h) (15.2 x 5.1 x 17.8 cm)
Weight 1.5 lb (0.7 kg)

Primalert Area Monitors