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Ludlum Model 2000

Radiation Scaler

Introduction

Ludlum Model 2000 Radiation Scaler

● General Purpose Radiation Scaler

● Gross Counting

● Supports GM, Proportional and Scintillation Detectors
● Portable Battery Operation
● RS-232 Interface, Optional Printer

The Ludlum Model 2000 is a general purpose radiation scaler typically used for counting samples. Rugged design and construction accommodates both benchtop and portable applications. The wide-ranging AC power supply and internal batteries capable of powering the instrument upwards of 120 hours. The Model 2000 supports GM, proportional and scintillator-type radiation detectors and provides fine adjustment controls for setting the high voltage and threshold settings. The scaler reading is presented on a digital, six-digit readout LED that can be set to count from 0.1 to 999 minutes via a front panel dip switch. An internal switch facilitates counting in seconds rather than minutes if desired. Other front panel controls include a start count button, a HV/Bat switch for displaying the current value on the accompanying analog meter and a three way switch for selecting Power Off, Battery or Line Power. An RS-232 port on the rear panel allows connection to a PC or printer as set by a rear mounted switch. When connected to a PC, the counting may be controlled and results recorded via application software.

Specifications

PART NUMBER: 48-1648

APPLICATION: gross radiation counting
COMPATIBLE RADIATION DETECTORS: GM, proportional, scintillation
CONNECTOR: series "C" (others available)
SCALER: six-digit LED display providing a range of 0-999999 counts
SCALER LINEARITY: reading within 2% of true value
TIMER: push-wheel adjustment from 0-999 minutes with selectable x0.1 and x1 multipliers
METER DIAL: 0-2.5 kV

METER: 2.5 in. (6.4 cm) arc, 1 mA analog type
HIGH VOLTAGE: adjustable from 200-2500 volts (will support 60 megohm scintillation loads)
THRESHOLD: adjustable from 1.0-10.0

DISCRIMINATOR: adjustable from 2-100 mV
RS-232: 9-pin connector allowing for printer or computer interface
POWER: 95-250 Vac 50-60 Hz or 4 each "D" cell batteries (housed in externally accessible compartment)
BATTERY LIFE: typically 120 hours with alkaline batteries (battery condition can be checked on meter)
CONSTRUCTION: aluminum housing with beige powder coat paint
TEMPERATURE RANGE: -4 to 122°F (-20° to 50°C)
SIZE: 8.5 x 5 x 9.3 in. (21.6 x 12.7 x 23.5 cm) (H x W x L)
WEIGHT: 6.9 lb (3.1 kg), without batteries