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Ludlum Medical Physics Model 25

Personal Radiation Monitor

Features

0 - 1000 R/hr Dose Rate Range
0 - 1999 R Accumulated Dose Range
Loud Alarms
Lightweight
Rugged
Easy to Use
6000 Hour Battery Life

Introduction

The Ludlum Model 25, Personal Radiation Monitor - Dosimeter/Ratemeter, is a small, lightweight and yet rugged (shock proof and water resistant), alarming dosimeter. The Model 25 continuously monitors and alerts medical or hazmat personnel to the presence of radiation while also keeping track of the accumulated dose. The dual audible and visual alarms are adjustable over the entire display range.

Dose rate: .01 mR/hr to 1999 R/hr
Dose: .01 mR to 1999 R

Calculated ‘stay-time’ to the programmed alarm is displayed by pressing the Mode key. The Model 25 is also available in an ‘Intrinsically Safe’ version for use in Hazmat or Surgical Applications, where explosive gasses may be an issue.

The Model 25 may also be used for monitoring the (real-time) daily accumulated dose of pregnant employees in Nuclear Medicine departments and Radiology/Fluoroscopic environments throughout the medical center.

A protective Rubber Case and Lanyard or Belt Clip are included.

Specifications

PART NUMBER: 48-3584

DISPLAY RANGE: .01 mR/hr to 1,000 R/hr
RADIATION DETECTOR: Internal energy-compensated GM
GAMMA SENSITIVITY: 18 cpm/mR/hr
ENERGY RANGE: 60 keV to 2 MeV
DISPLAY: 3½ digit backlit LCD display with a total range from .01 mR/hr (or mR) to 1999 R/hr (or R), also displays time remaining from 19:59 to 00:01 (in hh:mm format)
ALARMS: Radiation alarms adjustable over entire range

Dose rate alert
Dose rate (hi)
Accumulated dose alert
Accumulated dose (hi)
Time remaining to allowed dose (hi)
Time remaining to allowed dose (hi)
Detector failure
Low battery notice when only 8 hours remain

ALARM INDICATIONS: Distinct alerts and alarms for exposure and accumulated dose
AUDIO: Built in speaker (typically 95 dB at 1 foot )
LOSS OF COUNT: Detector failure results in a visual and audible warning
CALIBRATION: Requires no tools or software when exposed to a traceable radiation field
POWER: 2 each lithium coin cell batteries
BATTERY LIFE: Typically 6000 hours
CONSTRUCTION: Injection-molded plastic housing with sub-surface printed membrane front panel, completely gasketed for water resistance. Supplied with rubber boot with built-in belt feed-through
TEMPERATURE RANGE: -40°F to 150°F (-40°C to 65°C)
SIZE: 3.0”H x 2.125”W x 0.687”D (7.6 cm x 5.4 cm x 1.7 cm)
WEIGHT: 5.1 oz including batteries

Technical Information

Other Ludlum Medical Physics Products

Other Ludlum Medical Physics Products

Ludlum Medical Physics Information

For more information or to request a quotation, please contact us

by phone at: (865) 947-5123 or by email at: sales@deqtech.com.