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Ludlum Model
78
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Introduction |
● 4-12
ft Telescoping Stainless Steel Pole
● High-Activity Gamma Radiation Survey
● 0.1 mR/hr to 1000 R/hr
● Dual Analog/Digital Display
● Two Energy Compensated GM Detectors
The Ludlum Model 78 Stretch Scope telescoping gamma radiation survey meter keeps the user at a safe distance from high radiation areas, and reaches areas that are difficult to access with other probes. The wide 0.1 mR/hr to 1000 R/hr detection range is accomplished using dual energy-compensated GM detectors. The backlit digital LCD delivers precise 4-digit measurement values, which can be programmed to display units of R or Counts, and is accompanied by icons and messages for operational status of the instrument. Rate changes are conveniently viewed on the accompanying analog meter. The front-panel controls include separate switches for On/Off, Audio, mR/hr & R/hr range selection, Fast/Slow response, and LCD backlight.
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Specifications |
PART NUMBER: 48-2832
APPLICATION: high-activity gamma radiation survey with telescoping detector, 12 ft (3.6 m) fully extended
WORKING ENVIRONMENT: splashproof shields for outdoor use
RADIATION DETECTORS: 2 energy-compensated GM tubes
ENERGY RESPONSE: within 25% of true value from 60 keV-3 MeV
DISPLAY: 4-digit LCD display with 0.5 in. (1.3 cm) digits
DISPLAY RANGE: 000.0-999.9 with indicators of mR/hr and R/hr (Sv display also available)
BACKLIGHT/RESET: temporary action 2-position toggle switch to turn backlight on for preset time, or zero meter and display
METER DIAL: 0-1k 4-decade logarithmic
RANGE SELECTION: 2-position toggle switch to select between mR/hr and R/hr
LINEARITY: reading within 10% of true value
AUDIO: built-in click-per-event audio with ON/OFF switch
RESPONSE: dependent on number of counts present: typical times FAST 4-25 s, or SLOW 4-60 s, from 10% to 90% of final reading
POWER: 2 "D" cell batteries (housed in sealed handle)
BATTERY LIFE: typically 250 hours with alkaline batteries (low battery indicated on display)
METER: 2.5 in. (6.4 cm) arc, 1 mA analog type
CONSTRUCTION: aluminum housing with beige powder coat paint and polished stainless steel telescope assembly
TEMPERATURE RANGE: -4 to 122 °F (-20 to 50 °C)
SIZE: 7 x 4 x 45 in. retracted; 156 in. fully extended (18 x 10.1 x 114 cm retracted; 396.2 cm fully extended) (H x W x L, fully extended L)
WEIGHT: 6.4 lb (2.9 kg), including batteries
CE CERTIFIED: yes
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Options & Accessories |
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Case |
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Part Number 2310528 |
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Technical Information |
CE
Certificate |
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Ludlum Resources |