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Model SR725 Series Wheelchair Scale System
Operating and Service Manual - S/N 4068+
Part No. MAN725_100928
Page 1 of 16
by S Instruments, Inc.
Wheelchair Scale System
Operating and Service
Manual
Serial Numbers: 4068+
,
SInstruments, Inc.
600 Young Street, Tonawanda, NY 14150
Tel: 716-693-5977
Fax: 716-693-5854 URL:
www.srscales.com
Copyright 2010 SInstruments, Inc.
email:
sri@srinstruments.com
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Summary of Contents for SR Instruments SR725
- Page 1 Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 1 of 16 by S Instruments, Inc. Wheelchair Scale System Operating and Service Manual Serial Numbers: 4068+ SInstruments, Inc. 600 Young Street, Tonawanda, NY 14150...
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Page 2: Table Of Contents
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 2 of 16 TABLE OF CONTENTS TABLE OF FIGURES ........................2 PACKING CHECKLIST SR725 .....................3 PACKING CHECKLIST SR725L ....................3 ASSEMBLY............................4 REPLACEMENT PARTS AND ACCESSORIES ................5 SYSTEM DESCRIPTION AND INTENDED USE ...............6... -
Page 3: Packing Checklist Sr725
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 3 of 16 PACKING CHECKLIST SR725 Wheelchair Scale System √ DESCRIPTION QUANTITY BASE ASSEMBLY: 32 in x 32 in (81 cm x 81 cm) -
Page 4: Assembly
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 4 of 16 ASSEMBLY STEP 1: Unpack the scale system and check parts against PART NAME the PACKING CHECKLIST. If there are any missing or... -
Page 5: Replacement Parts And Accessories
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 5 of 16 ASSEMBLY Cont’d Figure 3: Display Unit STEP 7: (Figure 3) Insert the mast pipe into the display post mount assembly. Tighten the 10-32 x 3/8”... -
Page 6: System Description And Intended Use
SYSTEM DESCRIPTION and INTENDED USE SYSTEM DESCRIPTION The SR725 Wheelchair Scale System employs the latest in microprocessor and load cell technology to provide accurate and repeatable weight data. Four (4) identically matched transducers are strategically placed to ensure an accurate representation of the patient’s weight. -
Page 7: Maintenance And Cleaning
Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 7 of 16 MAINTENANCE and CLEANING The Display Unit for the SR725 Wheelchair WARNING Scale System is made of a powder-coated aluminum. Exercise caution when cleaning DO NOT use pressurized water or steam. The... -
Page 8: Specifications
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 8 of 16 SPECIFICATIONS 1000 lb or 454 kg MAXIMUM WEIGHT CAPACITY SR725: 32 in x 32 in (81 cm x 81 cm) -
Page 9: Button Functions
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 9 of 16 BUTTON FUNCTIONS Press box under each icon to activate command Figure 7: Button Display ZERO The “ZERO” button is used to zero the system before placing a patient onto the scale system. -
Page 10: Battery Replacement
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 10 of 16 BASIC SYSTEM OPERATION cont’d STEP 1: Place the empty wheelchair (with any blankets or pillows that the patient may have with them) on the scale platform. -
Page 11: Theory Of Operation
Page 11 of 16 THEORY OF OPERATION SR Instruments patient weighing systems are digital scales. Strain-gauge force cells convert the force of an applied weight into an analog signal. This signal is amplified by an operational amplifier and converted to a digital signal by an analog to digital converter. The digital signal is transferred to a micro-controller where it is filtered, converted to appropriate units, and displayed on a liquid crystal display. -
Page 12: Calibration
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 12 of 16 CALIBRATION IMPORTANT CALIBRATION CHECK Qualified service personnel only should perform this procedure. Load cells have no user serviceable components and should not be tampered with for any reason. -
Page 13: Initialization
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 13 of 16 INITIALIZATION INITIALIZATION PROCEDURE To be used ONLY IF REPLACING IC5 or if DISPLAY READS DOUBLE Internal Initialization Buttons Figure 10: Location of Internal Initialization Button STEP 1: Remove both end-caps to access the PC Board. -
Page 14: Troubleshooting
Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 14 of 16 TROUBLESHOOTING SYMPTOM REASON/CORRECTIVE ACTION Press the “WEIGH” button or remove one battery. The characters only appear on half of the Wait five seconds, then re-install the battery, and try display. -
Page 15: Warranty
SR Instruments, Inc.’s part, and it neither assumes nor authorizes any other person to assume for SR Instruments, Inc. any other liabilities in connection with the sale of said articles. In no event shall SR Instruments, Inc. - Page 16 Model SR725 Series Wheelchair Scale System Operating and Service Manual - S/N 4068+ Part No. MAN725_100928 Page 16 of 16 By SInstruments, Inc. Precision & Technology in Perfect Balance ® SInstruments, Inc. 600 Young Street, Tonawanda, NY 14150 Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com...
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