Model 2221 Scaler/Ratemeter SCA

Model 2221 Scaler/Ratemeter SCA

6 Decade LCD Scaler with backlight
Logarithmic and Linear Ratemeter with a Total Counting Range from 0 - 500,000 cpm
Headset Compatible
Audio Divide
Single Channel Analyzer

PART NUMBER:48-2065

INDICATED USE: Field analysis
COMPATIBLE DETECTORS: G-M, proportional, scintillation
CONNECTOR: Series "C" (others available)
AUDIO: Built in unimorph speaker with volume control (greater than 60 dB at 2 feet, full volume)
AUDIO DIVIDE: Thumb switch for 1, 10, or 100 events-per-click
AUDIO JACK: For optional headset
METER DIAL: 0 - 500 cpm; 50 - 500k cpm logarithmic scale (others available)
MULTIPLIERS: X1, X10, X100, X1k, and LOG for logarithmic scale
LINEARITY: Reading within plus or minus 10% of true value with detector connected
DIGITAL DISPLAY: 6 digit LCD display with 0.5" (1.3cm) digits
LCD BACKLIGHT: Activated by LAMP switch
DIGITAL RATEMETER: Provides a digital display of count rate when selector switch is in Dig. Rate position
SCALER: Used in conjunction with timer to allow for gross counting with range from 0 - 999999 counts when selector switch is in Scaler position (controlled by COUNT and HOLD buttons)
NOTE: Scaler and digital ratemeter are active when not selected, allowing for concurrent use
TIMER: Switch selectable divisions of 0.1, 0.5, 1, 2, 5, 10 minutes or CONT (continuous ) for manual timing
CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided)
HIGH VOLTAGE: Adjustable from 200 - 2400 volts (can be checked on display)
THRESHOLD: Adjustable from 100 - 1000 (can be checked on display)
WINDOW: Adjustable from 0 - 1000 above threshold setting (can be turned on or off)
GAIN: Adjustable from 1.5 - 100 mV at threshold setting of 100
OVERLOAD: Senses detector saturation. Indicated by "------" on LCD display and meter going to full scale (adjustable depending on detector selected)
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: 4 each "D" cell batteries (housed in sealed compartment that is externally accessible)
BATTERY LIFE: Typically 250 hours with alkaline batteries (battery condition can be checked on digital display)
METER: 2.5"(6.4cm) arc, 1 mA analog type
CONSTRUCTION: Milled 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: 9"(22.9cm)H X 4.3"(10.9cm)W X 10"(25cm)L including handle
WEIGHT: 5.5 lbs (2.5kg) including batteries

For Alpha Measurements	For Beta Measurements	For Gamma Measurements	For Alpha/beta/gamma Measurements
Model 43-1* Model 43-2* Model 43-5* Model 43-20 Model 43-44 Model 43-44-1 Model 43-65* Model 43-68 Model 43-90* Model 44-7 Model 44-9 Model 44-88 Model 44-89 Model 44-94	Model 43-20 Model 43-68 Model 44-1* Model 44-6 Model 44-7 Model 44-9 Model 44-21 Model 44-38 Model 44-88 Model 44-89 Model 44-92 Model 44-94 Model 44-98* Model 44-116*	Model 44-2 Model 44-3 Model 44-6 Model 44-7 Model 44-9 Model 44-10 Model 44-17 Model 44-20 Model 44-21 Model 44-38 Model 44-62 Model 133 Series	Model 44-7 Model 44-9 Model 44-88 Model 44-89 Model 44-94

Common Meter Dials

202-159
50-500 kcpm log; 0-500 cpm

Accessories	Replacement Parts
Check Source Source Holder Headset Standard Carrying Case Air and Water Tight Carrying Case	Cables Meter Bezel Meter Movement Handle Probe Clip

Manual Technical Info.

Common Meter Dials

202-159
50-500 kcpm log; 0-500 cpm