LUDLUM 271-2 User manual

LUDLUM MODEL 271-2
REMOTE
August 2006
Serial Number PR244365 and Succeeding
Serial Numbers
LUDLUMMEASUREMENTS,INC.
501 OAK STREET, P.O.BOX810
SWEETWATER, TEXAS 79556
325-235-5494,FAX:[phone]

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]

Model 3 Survey Meter
Ludlum Measurements, Inc. January 2006

Ludlum Measurements, Inc. August 2006
Table of Contents
Introduction 1
Drawings and Diagrams 1

Model 271-2 Remote
Ludlum Measurements, Inc. Page 1 August 2006
Introduction
he Model 271-2 Remote is a remote status instrument
for use with Ludlum Model 375P Radiation Detection
Systems. The Model 271-2 displays the status of the
Model 375P connected to it. Indicators include STATUS OK,
ALARM-CHANNEL 1, ALARM-CHANNEL 2 and DETECTOR FAIL.
An AUDIO ENABLE ON/OFF switch is provided for control of
the remote audio output. A RESET pushbutton is provided in
order to reset the latched alarm. Power is provided by the
Model 375P.
Drawings and Diagrams
MAIN BOARD AND CHASSIS, Drawing 238 × 112 (Rev.1.0)
MAIN BOARD COMPONENT LAYOUT,
Drawing 238 × 113 (Rev.1.0)
M 271-2 HARNESS, Drawing 238 × 118
M 271-2 WIRE-UP, Drawing 238 × 115A
T

Model 271-2 Remote
Ludlum Measurements, Inc. Page 2 August 2006
MAIN BOARD AND CHASSIS, Drawing 238 × 112 (Rev.1.0)

Model 271-2 Remote
Ludlum Measurements, Inc. Page 3 August 2006
MAIN BOARD COMPONENT LAYOUT,
Drawing 238 × 113 (Rev.1.0)

Model 271-2 Remote
Ludlum Measurements, Inc. Page 4 August 2006
M 271-2 HARNESS, Drawing 238 × 118

Model 271-2 Remote
Ludlum Measurements, Inc. Page 5 August 2006
M 271-2 WIRE-UP, Drawing 238 × 115A