Ludlum Model 375Dual

   Digital Area Radiation Monitor

Features

• Affordable Digital Controller

• Dual LED Digital Display

• Adapts to a Wide Variety of Radiation Detectors

• Programmable Alarms and Units of Measure

• Networkable

• Battery Backup

• Optional Remote

• Detector Fail Indicators

• Data Output/RS-232

Introduction

Dual-channel digital area radiation monitor controller based on the Ludlum Model 375.  See Model 375 for additional detail.

Specifications

PART NUMBER: 48-2369

INDICATED USE: Area radiation monitoring

COMPATIBLE RADIATION DETECTORS: G-M, proportional, scintillation, and neutron
DISPLAY: 4 digit LED display with 0.8" (2 cm) digits
DISPLAY RANGE: 000.0 - 9999
DISPLAY UNITS: Can be made to display in μR/hr, mR/hr, R/hr, μSv/hr, mSv/hr, Sv/hr, μrem/hr, mrem/hr, rem/hr, cpm, cps, and others
LINEARITY: Reading within 10% of true value
RESPONSE: Typically 3 seconds from 10% - 90% of final reading
STATUS: Green light, instrument functioning properly
ALARMS:

A. Low Alarm: Yellow light, 1 beep/second audible, selectable range: 0-9999
B. High Alarm: Red light, 4 beeps/second audible, selectable range: 0-9999
C. Detector Fail: Red light, constant audible tome > 68 dB at 2 feet
D. Low Bat: Yellow light, indicates less than 2 hours of battery life remaining
HIGH VOLTAGE: Adjustable from 200 - 2500 volts
THRESHOLD: Adjustable from 2 - 100 mV
DEAD TIME: Adjustable to compensate for dead time of detector and electronics (can be read on display)
OVERLOAD: Senses detector saturation (indicated by display reading “-OL-”)
OVERRANGE: Indicates radiation field being measured has exceeded counting range of instrument (indicated by display reading “– – – –”)
DATA OUTPUT: 9 pin connector providing 5 decade logarithmic output, RS-232 output, signal ground connection, FAIL and ALARM signals (current sink), and direct connection to battery and ground
CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided)
POWER: 95 - 135 Vac (178 - 240 Vac available), 50-60 Hz single phase. 6 volt sealed lead-acid rechargeable battery (built in)
BATTERY LIFE: Typically 48 hours in non-alarm condition; 12 hours in alarm condition
BATTERY CHARGER: Battery is continuously trickle charged when instrument is connected to line power and turned on

REMOTE (optional): Model 271, Model 272, Model 272D
CONSTRUCTION: Wall mount aluminum housing with ivory powder coat paint
SIZE: 7.4” H x 9.7” W x 2.5” D (18.7 x 24.6 x 6.4 cm)
WEIGHT: 6.5 lbs. (2.3 kg)

This Product is CE Certified

Compatible Radiation Detectors

Compatible radiation detectors are listed below and are not included with the survey meter price. An additional charge will be added for each detector ordered. 

Options

Technical Information

• Model 375Dual Manual

• Model 375 CE Certificate

• Model 375 Network Setting Request Form

Other Ludlum Products

• Other Ludlum Products

Ludlum Information

• Ludlum Introduction

• Ludlum Resources

• Ludlum Warranty

• Ludlum Repair and Calibration

• Ludlum Training