Owner`s manual
8551-M912-O1 Rev D  PL400 Owner’s  1
INTRODUCTION 
Thank you for purchasing our DETECTO™ 
Model PL400 Patient Lift Scale Indicator. It 
has been manufactured with quality and 
reliability at our factory in Webb City, MO 
USA. This instrument has been tested before 
leaving our factory to insure accuracy and 
dependability for years to come. 
This manual is provided to guide you through 
installation, operation and maintenance of 
your indicator. Please read it thoroughly 
before attempting to install or operate your 
PL400 and keep it handy for future reference. 
FCC COMPLIANCE STATEMENT 
This equipment generates uses and can 
radiate radio frequency and if not installed and 
used in accordance with the instruction 
manual, may cause interference to radio 
communications. It has been tested and 
found to comply with the limits for a Class A 
computing device pursuant to Subpart J of 
Part 15 of FCC rules, which are designed to 
provide reasonable protection against such 
interference when operated in a commercial 
environment. Operation of this equipment in a 
residential area may cause interference in 
which case the user will be responsible to 
take whatever measures necessary to correct 
the interference. 
You may find the booklet "How to Identify and Resolve 
Radio TV Interference Problems" prepared by the 
Federal Communications Commission helpful. It is 
available from the U.S. Government Printing Office, 
Washington, D.C. 20402, stock No. 001-000-00315-4
. 
All rights reserved. Reproduction or use, without 
expressed written permission, of editorial or 
pictorial content, in any manner, is prohibited. No 
patent liability is assumed with respect to the use 
of the information contained herein.  While every 
precaution has been taken in the preparation of 
this manual, the Seller assumes no responsibility 
for errors or omissions. Neither is any liability 
assumed for damages resulting from use of the 
information contained herein. All instructions and 
diagrams have been checked for accuracy and 
ease of application; however, success and safety 
in working with tools depend to a great extent 
upon the individual accuracy, skill and caution. 
For this reason the Seller is not able to guarantee 
the result of any procedure contained herein. Nor 
can they assume responsibility for any damage to 
property or injury to persons occasioned from the 
procedures. Persons engaging the procedures do 
so entirely at their own risk. 
TABLE OF CONTENTS 
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1
European Declaration Of Conformity . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . 3
Battery Replacement . . . . . . . . . . . . . . . . . 3
Keypad Functions . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Lock Weight Feature . . . . . . . . . . . . . . . . . 4
Automatic Shut-Off Feature . . . . . . . . . . . . 5
Display Codes . . . . . . . . . . . . . . . . . . . . . . 5
Annunciators . . . . . . . . . . . . . . . . . . . . . . . 5
Setup and Calibration . . . . . . . . . . . . . . . . . 6
Part Identification . . . . . . . . . . . . . . . . . . . . 7
SPECIFICATIONS 
Capacity:  400 lbs (180 kg) 
Resolution:  0.2 lb (0.1kg) 
Display:  LCD digital display 
Power 
Requirements: 
9.0 V Battery (included) 
Temperature 
Range: 
50 to 104 F 
(+10 to +40 C) 
Overall 
Dimensions: 
4.13" W x 2.13" D x 5.0" D 
(10.5cm x 5.4cm x 12.7cm) 
Mounting Hole 
Spacing: 
4" (10.16cm) 
Center to Center 
Shipping Weight:  2 lbs (0.91kg) 
SERIAL NUMBER ___________________ 
DATE OF PURCHASE _______________ 
PURCHASED FROM ________________ 
__________________________________ 
__________________________________ 
__________________________________ 
RETAIN THIS INFORMATION FOR FUTURE USE 
PRECAUTIONS 
Before using this instrument, read this 
manual and pay special attention to all 
"NOTIFICATION" symbols: 
 IMPORTANT 










