Ludlum Measurements 3000 User manual

LUDLUM MODEL 3000 SURVEY METER
USER’S MANUAL
April 2021
Serial Number: 25009185 and Succeeding
Firmware: n34 only

LUDLUM MODEL 3000 SURVEY METER
USER’S MANUAL
April 2021
Serial Number: 25009185 and Succeeding
Firmware: n34 only

Model3000Surveymeter User’s Manual

Model3000Surveymeter User’s Manual
STATEMENT OF WARRANTY
Ludlum Measurements, Inc. warrants the products covered in this manual to be free of
defects due to workmanship, material, and design for a period of twelve months from
the date of delivery. The calibration of a product is warranted to be within its
specified accuracy limits at the time of shipment. In the event of instrument failure,
notify Ludlum Measurements to determine if repair, recalibration, or replacement is
required.
This warranty excludes the replacement of photomultiplier tubes, G-M and
proportional tubes, and scintillation crystals which are broken due to excessive
physical abuse or used for purposes other than intended.
There are no warranties, express or implied, including without limitation any implied
warranty of merchantability or fitness, which extend beyond the description of the
face there of. If the product does not perform as warranted herein, purchaser’s sole
remedy shall be repair or replacement, at the option of Ludlum Measurements. In no
event will Ludlum Measurements be liable for damages, lost revenue, lost wages, or
any other incidental or consequential damages, arising from the purchase, use, or
inability to use product.
RETURN OF GOODS TO MANUFACTURER
If equipment needs to be returned to Ludlum Measurements, Inc. for repair or calibration, please
send to the address below. All shipments should include documentation containing return shipping
address, customer name, telephone number, description of service requested, and all other necessary
information. Your cooperation will expedite the return of your equipment.
LUDLUM MEASUREMENTS, INC.
ATTN: REPAIR DEPARTMENT
501 OAK STREET
SWEETWATER, TX 79556
800-622-0828 325-235-5494
FAX [phone]

Model3000Surveymeter User’s Manual
Table of Contents
Introduction 1
Getting Started 2
Unpacking and Repacking 2-1
Battery Installation 2-1
Instrument Operational Test 2-2
Sigma Audio 2-4
Detector Failure Diagnostic 2-5
Detector Over Range 2-5
Detector Overload 2-6
Instrument Use and Controls 2-6
RATE Mode Operation 2-8
MAX Mode Operation 2-9
COUNT Mode Operation 2-10
Specifications 3
Setup Mode 4
Setup Overview 4-1
Setup Parameters 4-2
Entering Setup Mode 4-4
Setup Mode Operation 4-5
Datalogging 5
Datalogging Operation –Mode 1 5-2
Datalogging Operation –Mode 2 5-3
Datalogging Operation –Mode 3 5-4
Specifications 5-4

Model3000Surveymeter User’s Manual
Software 6
Connecting to Software 6-1
Advanced Features 7
Dead Time Correction 7-1
Units 7-2
Software Calibration Tools 7-3
Other Device Data 7-3
Real-time Streaming 7-3
Safety Considerations 8
Environmental Conditions for Normal Use 8-1
Warning Markings and Symbols 8-1
Cleaning and Maintenance Precautions 8-2
Revision History 9
Recycling 10
Options 11
Standard Parts List 12
Auxiliary Communications A
AuxComm Overview A-1
Requirements A-1
Usage A-2
Settings A-5

Model3000Surveymeter User’s Manual Section1
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.
Section
1

Model3000Surveymeter User’s Manual Section1
Ludlum Measurements, Inc. Page 1-2 April 2021
Setup of the instrument is accomplished through the front-panel
buttons, or through software available from Ludlum Measurements.
The advanced user or administrator can set:
Calibration Constant
Dead Time Correction
Dead Time Correction 2
Efficiency
High Voltage
Pulse Threshold
Detector Current Overload Threshold
Loss of Count Alarm Time
Primary and Secondary Units
Primary and Secondary Minimum and Maximum Displays
Primary and Secondary Unit Alarm Levels
Primary and Secondary Count Units
Primary and Secondary Count Units Minimum Displays
Primary and Secondary Count Alarm Levels
Response Time
Auto-Response Rate (Fast or Slow)
Available Operational Modes
Count Time
Auto Shutdown Time
Backlight Threshold
Sigma or Click Audio Mode
Dead time correction coefficients can be configured either through the
device setup menu or through a wizard included in the calibration
software. Dead time correction employs first and second order
corrections for extended performance.
The front-panel setup feature can be disabled via the internal switch on
the Model 3000 in order to protect settings from inadvertent changes.
The unit is operated with four alkaline AA batteries for operation from
-20 to 50 °C (-5 to 122 °F). Battery life is approximately 750 hours
under normal usage. A low-battery indicator on the LCD warns when
less than 16 hours of battery life remain.
The Model 3000 may optionally be provided with a 1/8-inch stereo
headphone jack that would allow for headphone use for audio output. It
is located to the left of the detector connector.

Model3000Surveymeter User’s Manual Section1
Ludlum Measurements, Inc. Page 1-3 April 2021
For more advanced use: See Appendix A for information on our
Auxiliary Communications features, which allow the instrument to expand
its capabilities with a variety of external devices through a standard serial
interface.