Model 3000 Survey meter User’s Manual Section 1
Ludlum Measurements, Inc. Page 1-1 April 2021
Introduction
The Model 3000 is an ergonomic, lightweight instrument, which can be
used for radiation survey purposes. It features the ability to measure
radiation in count rate, exposure rate/dose, activity rate, integrated
exposure/dose, time-averaged rates, and scaler counts. The Model 3000
utilizes an external radiation detector to detect alpha, beta, or gamma
radiation.
Three modes of operation are available for the Model 3000 – RATE,
MAX, and COUNT. RATE mode operation will display the current
count, exposure, or activity rate. MAX mode is used to capture the
highest count, activity, or exposure rate detected – useful for finding a
peak rate, or frisking when the display is not visible. Two sets of units
(primary and secondary) for RATE and MAX modes can be chosen
from among cps, cpm, Bq, dpm, R/h, or Sv/h. The user can switch
between these two units by simply tapping the Units button.
COUNT mode allows the user to perform a count for a predetermined
time. Depending on the count units chosen, the result can be a scaler
count (in counts or disintegrations), a time-averaged rate (cpm, dpm,
Bq, or cps), a time-averaged exposure or dose (R/h or Sv/h), or an
integrated exposure or dose (R or Sv).
The instrument features a large backlit LCD (liquid crystal display), an
audio warning tone, and easy, intuitive use. The unit body is made of
lightweight but durable plastic. It is intended for outdoor use and can
resist splashing water. The foam grip provides a comfortable ergonomic
grip, but may be removed for ease of decontamination.
The standard handle includes the LOG pushbutton that allows the
instrument to log up to 1000 data points when activated with the
optional Lumic Datalogging Kit.
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