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Introduction |
● High Sensitivity
Gamma MicroR Meter
● 0 to 1000 µR/hr Range
● 4 Decade Analog Meter
● External 6 x 1 in. Plastic Scintillation Detector
● Special Algorithms for Finding Loose Sources
● Dual Alarm Types
The Ludlum Model 193-6 is a highly sensitive gamma radiation uR meter with an extended reach capability. A very sensitive 6 in. diameter x 1 in. thick (15.2 x 2.5 cm) plastic scintillator detector is mounted at the end of a 4 ft (1.2 m) long pole to facilitate reaching elevated areas. Attached to the user-end of the pole is a four-decade analog ratemeter employing an aluminum cast instrument housing with a separate battery compartment and accompanying metal handle. The overall design delivers industrial robustness and quality that promote long lasting protection and instrument life. The ratemeter front panel controls include a rotary switch for selecting the four-decade range, instrument shut off and battery test, an audio on/off switch, a fast/slow response switch, and a push button for count reset. This instrument supports two types of alarms; a user adjustable fixed point alarm and a deviation alarm that activates at levels above a floating background. An alarm light is mounted to the front panel and is accompanied by an audio signal.
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Specifications |
PART NUMBER: 48-3063
APPLICATION: low level (microR) gamma radiation survey
RADIATION DETECTOR: 6 in. diameter x 1 in. thick (15.2 x
2.5 cm) EJ212 plastic scintillator
SENSITIVITY: typically 1500 cpm/µR/hr (137Cs
gamma)
ENERGY RESPONSE: energy dependent
METER FACE: 0-1 µR/hr, BAT TEST (others available)
LINEARITY: reading ±10% of true value
CONTROLS:
Rotary Selector: switches between
instrument off, battery check, ranges: x1, x10, x100, x1000
Response Switch: toggles between FAST (4 s) or SLOW (22 s) from 10%
to 90% of final reading
Reset Pushbutton: to zero meter, re-accumulate background data and recalculate the alarm point
Audio Switch: for audio on/off, built-in unimorph speaker, greater than 60 dB at 2 ft (0.6 m) Calibration Controls: accessible from front of instrument (protective cover provided)
ALARM: dual action alarm
Fixed: alarm point that can be set at any point from 10%
of full scale to full scale, and is indicated by a constant audible tone, and
the lamp turning on.
Deviation: a quick alarm that is based on background
radiation levels. When the instrument is turned on, it takes an 8 second
measurement of background radiation levels and determines a deviation alarm
setting. If the radiation level exceeds this setting, the alarm audio will beep
every 1/8 second, and the lamp will flash.
POWER:
two each “D” cell batteries (housed in externally accessible sealed
compartment)
BATTERY LIFE: typically greater than 600
hours with alkaline batteries (battery check on meter)
CONSTRUCTION: cast and
drawn aluminum with beige polyurethane enamel paint
OVERALL LENGTH: 51 in.
(1.3 m)
WEIGHT: 8.5 lb (3.9 kg), including batteries
CE CERTIFIED: yes
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Options & Accessories |
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Technical Information |
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Ludlum Resources |