Ludlum Model 52-5-1

  Portable Radiation Portal Monitor

Features

• Portable

• 32" Wide Opening to Accommodate Hospital Gurneys, Wheel Chairs, etc.

• Plastic Scintillator Side and Foot Radiation Detectors

• Sets Up In Minutes

• Easy to Operate

• Meets FEMA-REP-21

• Battery or AC Power

• Carrying Case Included

Introduction

The Ludlum Model 52-5-1 Radiation Portal Monitor is used for Beta/Gamma personnel radiation contamination monitoring and meets the FEMA standard for Emergency Response Portal Monitoring (FEMA-REP-21). It is designed to be disassembled for ease of transportation and storage, and can be set up in under 5 minutes or less without any tools. The non-volatile parameters are preset at the factory to detect a 1.0 uCi Cs-137 source in a 10 uR/hr background field. The electronics are microprocessor-based for ease of setup and reliability. Status LEDs indicate count cycle status. Audible signals accompany the LEDs for additional indication. Detector counts, background, and all parameters may be viewed on the Liquid Crystal Display (LCD). All setup is accomplished by way of pushbuttons located below the LCD. These portal monitors can be operated in a walk-through basis with a quick scan occurring while a person is positioned within the portal.

Specifications

PART NUMBER: 48-3571

INDICATED USE: Portable personnel radiation monitoring
RADIATION DETECTORS: 4 ea. 168 cubic inches, plastic scintillators plus 1 ea. 108 cubic inches, plastic scintillator for feet
THRESHOLD: 5 ± 1 mV
DISPLAY: 2 line X 20 character LCD shows background rates from all detectors, and sigma values above background. To extend battery life, the LCD backlight on the display has been configured to go OFF when the instrument is on battery power.
ALARM: Indicated by red LED, and audible signal (greater than 60 dB at 2 feet)
COUNT TIME: Adjustable from 0 - 20 seconds (0 second setting is for walk through mode)
ENTER/CHECKING: (green LED) Indicates system is ready for use. Flashing LED indicates a count is in progress.

INCOMPLETE/UPDATING: (amber LED) Indicates the user has stepped out of the portal before counting was completed, or that an update is in progress.
FAILURE: (red LED) Indicates a high or low background
INFRARED SENSOR: A retro-reflective sensor senses portal occupancy
PARAMETERS: All parameters are stored in non-volatile memory
OUTPUT: RS-232 output for printer and relay output connectors located on the bottom of the electronics chassis 

POWER: 85 - 250 VAC, 50 - 60 Hz single phase (less than 100 mA); or 3 ea. "D" cell batteries.
BATTERY LIFE: Typically 24 hours in a non-alarm condition
CONSTRUCTION: Weather-tight housing
TEMPERATURE RANGE: +5° F(-15°C) to 122° F(50° C)
SIZE: 84"(213cm)H X 32"(81cm)W X 36"(91cm)D
PORTAL DIMENSIONS: 81"(206cm)H x 32"(81cm)W*
WEIGHT: 80 lbs (36kg) with bag
SHIPPING WEIGHT: 110 lbs (50kg)

This Product is CE Certified

Replacement Parts

• Photomultiplier Tube

Technical Information

• Model 52-5-1 Data Sheet

• Models 52-5-1 Manual

Other Ludlum Products

• Other Ludlum Products

Ludlum Information

• Ludlum Introduction

• Ludlum Resources

• Ludlum Warranty

• Ludlum Repair and Calibration

• Ludlum Training