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Survey Ratemeter Model 3 with a uSV/h Scale

Survey Ratemeter Model 3 with a uSV/h Scale
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Survey Ratemeter Model 3 with a uSV/h Scale.


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Survey Ratemeter Model 3 with a uSV/h Scale.


• Rugged 4 Decade Analog Ratemeter

• Sensitive 1" x 1" (2.54 x 2.54 cm) NaI (Tl) Detector

• Easy to Use

• Easy Reach to Difficult Places

• Greater than 2000 Hour Battery Life


Linearity:  Reading within 10% of true value with detector connected
High Voltage:  Adjustable from 400-1500 Vdc
Threshold:  Fixed at 40 mV to 10mV
Meter Dial:  0 - 0.5 µSv/h; BAT TEST
Meter:  2.5" (6.4 cm) arc, 1 mA analog type

Rotary Selector:  Switches between instrument off, battery check,
Ranges:  x0.1, x1, x10, x100
Response Switch:  Toggles between FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading
Reset Pushbutton:  To zero meters
Audio Switch:  For audio on/off, built-in unimorph speaker, greater than 60 dB at 2' (0.6 m)
Calibration Controls:  Accessible from front of instrument (protective cover provided)

Construction:  Cast and drawn aluminum with beige powder coat
Connector:  Series “C”
Temperature Range:  -4 to 122°F (-20 to 50°C), may be certified for operation from -40 to 150°F (-40 to 65°C)
Power:  Two each “D” cell batteries (housed in externally accessible sealed compartment)
Battery Life:  Typically greater than 2000 hours with alkaline batteries (battery condition can be checked on meter)
Size:  6.5" H x 3.5" W x 8.5" L (16.5 x 8.9 x 21.6 cm), including handle
Weight:  3.5 lb (1.6 kg), including batteries

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