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Ludlum Model 2401-EC

Pocket-Sized Radiation Survey Meter

Introduction

Ludlum Model 2401-EC Pocket-Sized Radiation Survey Meter ● Pocket-Sized Gamma Radiation Survey Meter

● 0 to 200 mR/hr (0 to 210 kcpm)

● Internal Energy Compensated GM Detector

● 3 Decade Analog Meter

● Simple to Use, Low Cost

The Ludlum Model 2401-EC is a pocket-sized radiation detection meter with an integrated energy compensated GM tube for measuring gamma radiation exposure. The meter measures 0-200 mR/hr exposure rate and also 0-210,000 cpm via separate scales. The metal case offers excellent protection against abuse. The overall size and integrated design facilitate ease of use.

Specifications

PART NUMBER: 48-2824

APPLICATION: gamma radiation survey

RADIATION DETECTOR: energy compensated GM tube
RANGE: 0–200 mR/hr; 0–210,000 cpm
SENSITIVITY: typically 1050 cpm/mR/hr (¹³⁷Cs gamma)
ENERGY RESPONSE: reading within 20% of true value
RESPONSE TIME: typically 11 seconds from 10% to 90% of final reading
METER FACE: 0–2 mR/hr; 0–2.1 kcpm, BAT OK
MULTIPLIERS: x1, x10, and x100
AUDIO: click-per-event, may be turned off by moving selector to QUIET position
POWER: 9 volt battery
BATTERY LIFE: typically 250 hours with alkaline battery at normal background levels
CONSTRUCTION: drawn and cast aluminum, with membrane panel
SIZE: 1.8 x 3.3 x 5.3 in. (4.6 x 8.4 x 13.5 cm) (H x W x L)
WEIGHT: 0.9 lb (0.4 kg), including battery
ALARM: no (see Model 2401-ECA for version with alarm)