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The Ludlum Model 19 is a highly sensitive gamma radiation MicroR survey meter employing an internally housed, 1.0 in. diameter by 1.0 in. thick (2.5 x 2.5 cm) NaI detector.
Add a Counts.Pro for to digitize and record your Model 19 surveys and turn your meter into a digital scaler/ratemeter/cloud connected GPS datalogger! Counts.Pro gives you count data for each reading thereby allowing you to accurately measure slight variations in radiation background using timed counts and recording the data. The GPS Ability allows you to create survey maps of count rate overlaid to arial surveys. Take your meter to the next level with Counts.Pro
The measuring range is 0-5000 µR/hr (0-50 µSv/h). The cast aluminum instrument housing with its separate battery compartment and accompanying metal handle offer an industrial robustness and quality that promote long lasting protection and instrument life. The front-panel controls include a rotary switch for selecting the five-decade range and instrument shut-off, an audio on/off switch, a fast/slow response switch, and pushbuttons for activating the meter lamp, high-voltage display, battery test, and count reset. The Model 19 is a complete turn-key system and includes two “D” cell batteries.
● High Sensitivity Gamma Radiation MicroR Meter
● 0 to 5000 µR/hr Range
● 5 Selectable Ranges
● Internal 1 x 1 in. NaI(Tl) Scintillation Detector
● Analog Meter with Backlight
● Splash-proof Protection for Outdoor Use
● 2000 Hour Battery Life
● Rugged
PART NUMBER: 48-1615
APPLICATION: low-level (μR) gamma radiation survey
MEASUREMENT RANGE: 0-5000 μR/hr (0-50 μSv/h)
RADIATION DETECTOR: 1 x 1 in. (2.5 x 2.5 cm) (Dia x L) NaI(Tl) scintillator
SENSITIVITY: ≈ 175 cpm/μR/hr (17,500 cpm/μSv/h) (137Cs gamma)
ENERGY RESPONSE: energy dependent
LINEARITY: reading ±10% of true value
METER: 2.5 in. (6.4 cm) arc, 1 mA analog type
METER FACE: 0-25 µR/hr, 0-50 µR/hr, BAT TEST, High Voltage Test
CONTROLS:
Rotary Knob Selector: 0-25, 0-50, 0-250, 0-500, 0-5000 μR/hr, Instrument Off
Response: toggle switch for FAST (4 s) or SLOW (22 s) from 10% to 90% of final reading
Audio: built-in unimorph speaker with ON/OFF switch, greater than 60 dB at 2 ft (0.6 m)
High Voltage: pushbutton to display HV setting on meter
Battery: pushbutton checks battery voltage
Reset: pushbutton to zero meter
Lamp: pushbutton to activate meter light
Calibration Controls: accessible from front of instrument (protective cover provided)
WORKING ENVIRONMENT: splash-proof shields for outdoor use
TEMPERATURE RANGE: -4 to 122 °F (-20 to 50 °C), may be certified from -40 to 150 °F (-40 to 65 °C)
POWER: 2 each “D” cell batteries (housed in externally accessible sealed compartment)
BATTERY LIFE: typically 2000 hours with alkaline batteries (battery check on meter)
CONSTRUCTION: cast and drawn aluminum with beige polyurethane enamel paint
SIZE: 6.0 x 3.5 x 8.5 in. (15.2 x 8.9 x 21.6 cm) (H x W x L), without handle
WEIGHT: 4.5 lb (2.04 kg), including batteries
CE CERTIFIED: yes
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