Model 53 Portal Monitor


INDICATED USE: Beta/Gamma personnel monitoring
DETECTORS: 6ea. 630 in³ shielded plastic scintillation detectors for a total of 3780 in³ (2 on each side, one overhead, one under feet)
SENSITIVITY: Will detect 100 nCi - Cs-137 in dynamic (walk through) mode, and 50 nCi - Cs-137 in a 2 second count (static mode)
AUDIO: Two external speakers on each side: A soft speaker (greater than 75 dB at 1 foot) for portal entry and incomplete count indication, and a loud speaker (greater than 90 db at 1 foot) for alarm or instrument failure indication.
DISPLAYS: 2 overhead displays with the following indicators (1 on each side of lintel):
Green LED - Enter/Checking
Orange LED - Incomplete/Updating
Red LED - Radiation Alarm
Red LED - Instrument Failure
Alarm display with LED alarm indicators for each detector and a summing alarm indicator
ALARM: Indicated by red LED's and audible signal
COUNT TIME: Adjustable from 1 second to 10 seconds (used in static mode only)
BACKGROUND UPDATE INTERVAL: Adjustable from 18 seconds to 144 seconds
POWER: 95 - 135 VAC (178 - 240 VAC available), 50 - 60 Hz single phase (less than 100 mA)
CONSTRUCTION: Aluminum construction with ivory polyurethane enamel paint
TEMPERATURE RANGE: 32° F( 0° C) to 122° F(50° C)
PORTAL SIZE: 28"(61cm)W X 77"(195.6cm)H X 21"(53.3cm)D
INSTRUMENT SIZE: 37"(94cm)W X 81"(205.7cm)H X 21"(53.3cm)D
750 lbs (341kg)

SHIPPING SIZE: 42"(107cm)H X 96"(244cm)W X 30"(76.2cm)D
SHIPPING WEIGHT: 850 lbs (386kg)


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