Ludlum Model 375-600

   Digital Area Radiation Monitor

Features

• Integrated Measurement System

• 630 in³ Plastic Scintillator Radiation Detector

• 1/8" Lead Shielding on 5 Sides

• Model 375 Controller

• Alarm Strobe

• Environmental Enclosure

• Programmable Alarms

• Networkable

• Battery Backup

Introduction

The Ludlum Model 375-600 is a highly integrated, high sensitivity gamma radiation measurement system. Unlike other systems where the detectors are separated from the controller and alarm indicators, this one combines all components into one convenient package thus making installation a lot simpler and less costly. The detector employed is a 630 in3 plastic radiation scintillator which is shielded in all directions except beneath with 1/4" lead. The controller is Ludlum's popular Model 375 digital controller which is located at one end of the cabinet. A red strobe is mounted on the top along with a large, industrial strength alarm acknowledgement pushbutton. The detector is accessible from a removable panel and the entire system sits on a plate which can be bolted to the floor. See Model 375 for additional detail.

Specifications

PART NUMBER: 48-3458

INDICATED USE: Area radiation monitoring
RADIATION DETECTOR: 630 in³ shielded plastic scintillation
     DIMENSIONS: 15" (38cm) X 28"(71cm) X 1.5" (3.8cm)
     SHIELDING: 0.125" lead on five sides
SENSITIVITY:30 kcpm/µR/hr (¹³⁷Cs)
DISPLAY: 4 digits LED display with 0.8" (2cm) digits
DISPLAY UNITS: kcpm
LINEARITY: Reading within ± 10% of true value with detector connected
RESPONSE: Typically 3 seconds from 10% - 90% of final reading
STATUS: (Green Light) instrument functioning properly
HIGH ALARM: Indicated by red 5 inch diameter xenon strobe, red HIGH ALARM light, and fast beep (4 per second) audible tone (can be set at any point from 0.0 - 9999)
LOW ALARM: Indicated by yellow LOW ALARM light and slow beep (1 per second) audible tone (can be set at any point from 0.0 - 9999)
NOTE: Audible alert and alarm indicators can be configured as a single beep if desired
DETECTOR FAIL: (red light and audible tone; greater than 68 dB at 2 feet) indicates detector overload, no count from detector, or instrument failure
LOW BAT: (yellow) indicates less than 2 hours of battery power remaining
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, relay outputs available
CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided)
POWER: 95 - 135 VAC (178 - 240 VAC available), 50-60 Hz single phase (less than 100 mA), 6 volt sealed lead-acid rechargeable battery (built in)
BATTERY LIFE: Typically 8 hours in non-alarm condition
BATTERY CHARGER: Battery is continuously trickle-charged when instrument is connected to line power and turned on
CONSTRUCTION: Steel housing with ivory powder coat paint
TEMPERATURE RANGE: 5° F(-15° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
SIZE: 2’(61cm)H X 3’(91.5cm)W X 1’(30.5cm)D chassis size
WEIGHT: 125 lbs (57 kg)

This Product is CE Certified

Technical Information

• Model 375-600 Data Sheet

• Model 375-600 Manual

Other Ludlum Products

• Other Ludlum Products

Ludlum Information

• Ludlum Introduction

• Ludlum Resources

• Ludlum Warranty

• Ludlum Repair and Calibration

• Ludlum Training