MODEL 3 SURVEY METER

Detectors for Model 3
Survey Meter

JRT Calibration Services

©JRT Associates 2008

• 4 Ranges
• Analog Display
• Utilizes G-M, or Scintillation Detectors
• Typical Counting Range from 0 - 200 mR/hr, or 0 - 500,000 cpm
• Greater Than 2000 Hour Battery Life

Indicated Use General purpose survey
Compatible Probes 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% 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% to 90% 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