Ludlum Model 3 Survey Meter With 44-9 Probe Geiger Counter Gm Detector

US $399.00

  • Weirsdale, Florida, United States
  • Jun 9th
Ludlum Model 3 Survey Meter with 44-9 Probe Geiger Counter GM Detector  This sale is for a Ludlum Model 3 Survey Meter with 44-9 Probe Geiger Counter GM Detector Condition:  We just received this from lab surplus.  Used -- unit will power up. Warranty:  30 Day Warranty.   We pledge to offer the best service and warranty to all of our customers! We are extending a 30 Day warranty on this item. This is our way of saying thank you for allowing us to serve you. Certification: This is an genuine product from this manufacturer. The Model 3 is a portable radiation survey instrument with four linear ranges used with exposure rate or cpm (counts per minute) meter dials, or a combination of both exposure rate and count rate (referred to as “combo”) meter face dials. The instrument features a regulated high-voltage power supply, unimorph speaker with audio ON-OFF capability, fast-slow meter response, meter reset button, and a six-position switch for selecting battery check or scale multiples of x0.1, x1, x10 and x100. Each range multiplier has its own calibration potentiometer. The unit body and meter housing are made of cast aluminum and the can is 0.23 cm (0.090 in.) thick aluminum. The audio provides a brief “click” for every radiation event detected. It also provides a steady tone to warn the user of a low battery condition. This low battery warning overrides the position of the AUD ON-OFF switch. Any Geiger-Mueller (GM) detector offered by Ludlum Measurements will operate with this unit as well as any scintillation type detector. The instrument is typically set at 900 volts for GM tube operation. For special requirements of GM or scintillation detectors, the instrument high voltage may be adjusted from 200 to 1500 volts. The unit is operated with two ?D? cell batteries for operation from -20 to 50 °C (-4 to 122°F). For instrument operation below 0 °C (32 °F), either very fresh alkaline or rechargeable NiCd batteries should be used. low radiation fields.   Specifications: INDICATED USE: General purpose survey COMPATIBLE DETECTORS: G-M, scintillation METER DIAL: 0 - 2 mR/hr, or 0 - 5k cpm, BAT TEST (others available) MULTIPLIERS: X0.1, X1, X10,X100 LINEARITY: Reading within ±10%25 of true value with detector connected CONNECTOR: Series "C" (others available) AUDIO: Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet) CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided) HIGH VOLTAGE: Adjustable from 200 - 1500 volts THRESHOLD: 30 mV ± 10 mV RESPONSE: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) from 10%25 to 90%25 of final reading RESET: Push-button to zero meter POWER: 2 each "D" cell batteries (housed in sealed compartment that is externally accessible) BATTERY LIFE: Typically greater than 2000 hours with alkaline batteries (battery condition can be checked on meter) METER: 2.5" (6.4 cm) arc, 1 mA analog type CONSTRUCTION: Cast and drawn aluminum with beige polyurethane enamel paint TEMPERATURE RANGE: -4°F(-20°C) to 122°F(50°C) May be certified for operation from -40°F(-40°C) to 150°F(65°C) SIZE: 6.5" (16.5 cm)H X 3.5" (8.9 cm)W X 8.5" (21.6 cm)L WEIGHT: 3.5 lbs. (1.6 kg) including batteries Ludlum Model 44-9 Pancake G-M Detector INDICATED USE: Alpha beta gamma survey; Frisking DETECTOR: Pancake type halogen quenched G-M WINDOW: 1.7 plus or minus 0.3 mg/cmA? mica WINDOW AREA: Active - 15 cmA? Open - 12 cmA? EFFICIENCY(4pi geometry): Typically 5%25-C-14; 22%25-Sr-90/Y-90; 19%25-Tc-99; 32%25-P-32; 15%25-Pu-239 SENSITIVITY: Typically 3300 cpm/mR/hr (Cs-137 gamma ) ENERGY RESPONSE: Energy dependent DEAD TIME: Typically 80 microseconds COMPATIBLE INSTRUMENTS: General purpose survey meters, ratemeters, and scalers OPERATING VOLTAGE: 900 volts CONNECTOR: Series "C" (others available ) CONSTRUCTION: Aluminum housing with beige polyurethane enamel paint TEMPERATURE RANGE: -4A° F(-20A° C) to 122A° F(50A° C) May be certified for operation from -40A° F(-40A° C) to 150A° F(65A° C) SIZE: 1.8" (4.6 cm)H X 2.7" (6.9 cm)W X 10.7" (27.2 cm)L WEIGHT: 1 lb (0.5kg)
Condition:
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. ...
Brand Ludlum
MPN Model 3 survey meter 44-9
Model Model 3 survey meter 44-9

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