Application arrow Intrinsically Safe, Handheld Count Rate Radiation Measurements arrow General Purpose Ratemeter
General Purpose Ratemeter - Model 3-IS
CE Seal


Specifications

APPLICATION: alpha, beta, gamma, neutron surveying in potentially explosive environments
DETECTOR: supports select Ludlum radiation detectors (see list) that can be purchased separately
DETECTION RANGE: typically 0-200 mR/hr, or 0-500,000 cpm
LINEARITY: reading within 10% of true value with detector connected
HIGH VOLTAGE: adjustable from 400-1000 Vdc
THRESHOLD: fixed at 40 mV ±10 mV
METER DIAL: 0-2 mR/hr, or 0-500 kcpm, BAT TEST (See all available dials)
METER: 6.4 cm (2.5 in.) arc, 1 mA analog type
CONTROLS:
  1. Rotary Selector: switches between instrument off, battery check, ranges: x0.1, x1, x10, x100
  2. Response Switch: toggles between FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading
  3. Reset Pushbutton: to zero meter
  4. Audio Switch: for audio on/off, built-in unimorph speaker, greater than 60 dB at 0.6 meters (2 ft)
  5. Calibration Controls: accessible from front of instrument (protective cover provided)
CONSTRUCTION: cast and drawn aluminum with beige powder coat
CONNECTOR: series “C” with locking screws to prevent inadvertant disconnection during operation
TEMPERATURE RANGE: -20 to 50 °C (-4 to 122 °F)
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: 16.5 x 8.9 x 21.6 cm (6.5 x 3.5 x 8.5 in.) (H x W x L), including handle
WEIGHT: 1.6 kg (3.5 lb), including batteries
CERTIFICATIONS:
UL 913 Class I, II & III Division 1 Groups A, B, C, D
CSA 22.22 No. 157
UL 61010-1 CSA C22.2 No. 61010-1

 

General Purpose Ratemeter