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Handheld Survey Meters : Model 9 Ion Chamber

Model 9 Ion Chamber Ludlum Model 9 Ion Chamber

  • Ion Chamber
  • 4 Ranges
  • Retractable Beta Shield
  • Total Counting Range from 0 - 5000 mR/hr
  • Built-In Audio

  • INDICATED USE: General purpose survey
    CHAMBER CONSTRUCTION: Carbon coated acrylic
    CHAMBER VOLUME: 220 cm3
    WINDOW: 7 mg/cm2 aluminized mylar
    WINDOW AREA: Active - 40 cm2 Open - 30 cm2
    BETA SHIELD: Retractable 211 mg/cm2 phenolic slide
    ENERGY RESPONSE: Within plus or minus 20% of true value from 10 keV - 2 MeV
    BETA FACTOR: 3.7 with uranium slab
    AUDIO: Built in unimorph speaker with ON/OFF switch
    METER DIAL: 0 - 5 mR/hr, BAT TEST
    MULTIPLIERS: X1, X10, X100, X1000
    LINEARITY: Reading within plus or minus 10% of true value
    CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided)
    RESPONSE: Typically 3 seconds from 10% to 90% of final reading
    RESET: Push-button to discharge chamber and zero meter
    ZERO ADJUST: 3 turn potentiometer
    WARM UP TIME: Approximately 5 minutes
    POWER: 2 each "D" cell batteries (housed in sealed compartment that is accessible from front of instrument)
    BATTERY LIFE: Greater than 200 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: -4º F(-20º C) to 122º F(50º C) May be certified for operation from -40º F(-40º C) to 150º F(65º C)
    SIZE: 8"(20.3 cm)H X 3.5"(8.9 cm)W X 8.5"(21.6 cm)L
    WEIGHT: 4 lbs (1.8 kg) including batteries

    Click Here to Download a Printable Information Sheet. (.PDF format)