Ludlum Model 2221 Monthly Rental

$234.00
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$234 monthly/$78 weekly

Non-routine instrument setup and/or calibration requests will incur a one-time setup/calibration charge in addition to rental rate noted above.  When this applies, you’ll be informed of the amount of the additional charge at time of order or, if requested, prior to placement of order.

  • 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

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