SR Instruments SR Scales SR 735i Service manual

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 1 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
S
by SInstruments, Inc.
Operating and Service
Manual
Wheelchair Scale
SR 735i

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 2 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
TABLE OF CONTENTS
TABLE OF FIGURES......................................................................................................................2
PACKING CHECKLIST.................................................................................................................3
ASSEMBLY.......................................................................................................................................4
REPLACEMENT PARTS AND ACCESSORIES ........................................................................5
SYSTEM DESCRIPTION AND INTENDED USE.......................................................................6
MICROBAN ANTIMICROBIAL PROTECTION.......................................................................6
STORAGE.........................................................................................................................................6
CLEANING AND DISINFECTING...............................................................................................7
SPECIFICATIONS...........................................................................................................................8
BUTTON FUNCTIONS...................................................................................................................9
BASIC SYSTEM OPERATION....................................................................................................11
BATTERY REPLACEMENT.......................................................................................................12
THEORY OF OPERATION .........................................................................................................13
CALIBRATION..............................................................................................................................14
CONFIGURING SEND BUTTON................................................................................................16
TROUBLESHOOTING.................................................................................................................17
WARRANTY...................................................................................................................................18
NOTES.............................................................................................................................................19
TABLE OF FIGURES
Figure 1: Attach Wall Mounting Plate........................................................................................4
Figure 2: Wall Mount Hole Locations ........................................................................................4
Figure 3: Install “D” Cell Batteries.............................................................................................4
Figure 4: Printer Mounting Bracket...........................................................................................5
Figure 5: Printer Display Connector...........................................................................................5
Figure 6: Button Display..............................................................................................................9
Figure 7: Battery Replacement..................................................................................................12
Figure 8: Calibration Tolerance Table.....................................................................................14
Figure 9: Calibration Switch Diagram .....................................................................................14

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 3 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
PACKING CHECKLIST
SR735iPlatform Scale

DESCRIPTION
QUANTITY
Box 1
WHEELCHAIR PLATFORM BASE
1 ea
DISPLAY UNIT
1 ea
PACKAGE OF SIX (6) “D” CELL BATTERIES
1 ea
CALIBRATION CERTIFICATE
1 ea
WARRANTY CARD
1 ea
MANUAL
1 ea

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 4 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
ASSEMBLY
STEP 1: Unpack the scale system and check parts against the PACKING CHECKLIST. If
there are any missing or damaged parts, please call the service hotline at 1-800-654-6360.
STEP 2: Verify that the serial number on the Display Unit matches that on the Wheelchair Scale
Assembly.
STEP 3: The SR735i Display may be wall mounted (Figure 1) using the Wall Mounting Plate.
Note: See Figure 2 for locating holes for wall mount application.
STEP 4: (Figure 3) Remove the battery compartment cover by unscrewing the battery cover
thumb screw and install the six (6) “D” cell batteries (Figure 3). Replace cover and tighten screw.
Figure 1: Attach Wall Mounting Plate
Figure 2: Wall Mount Hole Locations
Figure 3: Install “D” Cell Batteries
Continued next page

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 5 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
ASSEMBLY (Cont’d)
INSTALLING OPTIONAL PRINTER
STEP 1: Mount the optional printer within distance of the display to allow connection of the
printer cable. Use the three (3) holes in the Printer Mounting Bracket as a template to locate the
holes needed to mount the Printer Mounting Bracket (Figure 4). Use the wall mounting hardware
provided for installing the bracket.
STEP 2: Carefully attach the printer to the Printer Mounting Bracket. Connect the printer cable
from the printer to the connector on the bottom of the display (Figure 5). Tighten the two (2)
printer cable screws to secure the cable to the connector.
REPLACEMENT PARTS and ACCESSORIES
Figure 4: Printer Mounting Bracket
Figure 5: Printer Display Connector
Part #
Description
SR8327
Printer Kit (includes all printer accessories listed below)
FRAP1300
Printer
FRAP1300BR-01
Printer Mounting Bracket
FRAP1300-D9
Printer Cable
FRAP1300PCC
AAA Battery Holder
FRAP1300BP01
Rechargeable Battery Pack
FRBC1300
Printer Power Cable
FRTP130012C
Paper, thermal printer 58mm (10 rolls)

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 6 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
SYSTEM DESCRIPTION and INTENDED USE
SYSTEM DESCRIPTION
The SR735iWheelchair 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.
The SR735ilow power microprocessor circuitry is powered six (6) common “D” cell batteries,
which will provide up to 400 hours of weight readings before needing replacement.
The patient’s weight is displayed on a 16-character dot matrix LCD. The weight data may be
viewed either in pounds or kilograms with a displayed resolution of 0.1 for each.
INTENDED USE
The SR735iWheelchair Scale System is specifically designed for weighing both motorized-
wheelchair and caregiver-assisted wheelchair bound patients and is a preferred means of gathering
patient weight data of up to 1000 pounds or 454 kilograms.
MICROBAN ANTIMICROBIAL PROTECTION
Microban® antimicrobial technology has been added to help reduce the growth of bacteria as part
of a medical center's approach to creating a cleaner healthcare environment. For more information,
visit https://www.microban.com/sr-scales
STORAGE
STORAGE
If storing this equipment for periods longer than three (3) months, remove the batteries. To
maintain proper operation of this instrumentation, storage and transport conditions should not vary
outside the following conditions: Relative Humidity 0% to 85%, Ambient Temperature 14F to
122F(-10C to +50C).
WARNING
DO NOT EXCEED
MAXIMUM WEIGHT LIMIT OF
1000 LB / 454 KG
WARNING
SCALE SURFACE IS CURVED.
DO NOT LEAVE PATIENTS
UNATTENDED ON SCALE

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 7 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
CLEANING and DISINFECTING
CLEANING
To clean the display / user interface and other scale contact areas:
Use a soft cloth dampened with water and mild detergent to clean scale surfaces.
Wipe surface with clean soft cloth dampened with water and then dry with clean soft cloth.
Do not use abrasive materials to clean scale surface to prevent damage to the surface
finish.
Do not spray liquid directly onto scale surfaces. Use only a damp cloth.
DISINFECTION
To disinfect the display / user interface and other scale contact areas:
Use a soft cloth dampened with disinfectant or a damp disposable disinfectant cloth. Cloth
cannot be dripping wet. Follow manufacturer’s instruction on the proper use of
commercially available disinfectants.
Disinfectant solutions with 1% sodium hypochlorite or 70% isopropyl alcohol are suitable
for display / user interface and other scale contact surfaces.
After disinfecting, use a soft cloth dampened with clean water and dry with a soft clean
cloth to prevent buildup of material on scale finish.
Do not use abrasive material to disinfect / clean scale surfaces to prevent damage to the
surface finish.
Do not spray liquid directly onto scale surfaces. Use only a damp cloth.
WARNING: DO NOT SPRAY CLEANING SOLUTION OR LIQUIDS DIRECTLY
ON SURFACES TO BE CLEANED.
WARNING: EXPOSURE TO EXCESSIVE LIQUID WILL DAMAGE USER
INTERFACE KEYPAD.
WARNING: DO NOT USE PRESSURIZED WATER OR STEAM. THE SCALE
SYSTEM CONTAINS ELECTRONIC COMPONENTS THAT MAY BE
ADVERSELY AFFECTED BY EXPOSURE TO SUCH AN
ENVIRONMENT.

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 8 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
SPECIFICATIONS
MAXIMUM WEIGHT CAPACITY
1000 lb or 454 kg
PLATFORM SIZE
32 in x 40 in (81 cm x 102 cm)
DISPLAY TYPE
16-character Dot Matrix LCD
DISPLAY RESOLUTION
0.1 lb / 0.1 kg
ACCURACY
0.1% +/- 1 digit of displayed resolution for calibrated
range
AUTO ZERO
One button operation
AUTO POWER DOWN
Approximately 30 seconds (adjustable to 300 seconds)
RECALL
Recalls last stored stable weight, height and BMI
AVERAGING
Automatic digital filter
POWER SUPPLY
Six (6) “D” cell batteries
CALIBRATION
Calibration is traceable to NIST standards
OPERATING CONDITIONS
Normal operating conditions for this product:
Ambient Temperature Range: 68F to 85F (20C to
30C) Relative Humidity Range: 0% to 85%
Avoid exposure to high-pressure water or steam.
TRANSPORT and STORAGE
Storage and transport conditions should not vary outside
the following conditions: Relative Humidity 0% to 85%,
Ambient Temperature 14F to 122F (-10C to +50C).
Remove batteries if storing longer than three (3) months.

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 9 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
BUTTON FUNCTIONS
ZERO / WEIGH
Press and hold to zero. The display will read “WT = 0.0 Lb”. This is used to zero the
system before placing the patient on the scale system. This action also resets previously
stored weight, height and BMI values to zero. Ensure that nothing is in contact with the
weighing surface during this procedure.
Press to weigh. Weight stable indicator “” flashes then remains solid when stable. Auto
stores stable weight in memory.
SEND (PRINTER / EHR)
Press to send stored values to EHR or to printer. Output values include time, date, weight,
height, and BMI. Also, indicated on display when paper is out, “PAPER OUT” and when
door is open, “PAPER DOOR OPEN”.
RECALL
Press to recall the last stable weight. Display will scroll thru “WT”, “HT”, and “BMI”
stored values in approximately two second intervals.
ENTER
Press to save height data and display BMI calculation. Stable weight, height and BMI
values are stored in memory until next stable weight is stored or until system is zeroed.
BMI
Press to calculate the BMI. When the “BMI” is pressed, the default starting value “HT =
65 in” or “HT = 165 cm” is displayed. If there is no stored stable weight, the display will
indicate “NO WEIGHT DATA” and then go back to the weigh screen “WT = 0.0 Lb”.
Figure 6: Button Display
Continued next page

Model SR735iWheelchair Scale
Operating and Service Manual
Part No. MAN735i_MICROBAN_200603 Page 10 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2020 SInstruments, Inc.
BUTTON FUNCTIONS (Cont’d)
MENU Press Menu to edit setup.
Setting the UNITS: Use UP or DOWN arrow buttons to select “Lb” or “Kg”. Press
ENTER to save changes.
Setting ON TIME: Use UP or DOWN arrow buttons to adjust the “ON TIME”. The
“ON TIME” may be set from 30 to 300 seconds in 30 second increments. Press
ENTER to save changes.
Setting TIME and DATE: Use the UP arrow button to select digit. To change digit use
the DOWN arrow button. Press ENTER to save changes.
NOTE: When selected, the year position defaults to “00”
UP Press UP to adjust height up from the default, to increase the scale’s “on time”, or to
select a digit when setting time and date.
DOWN Press DOWN to adjust the height down from the default, to decrease the scale’s “on
time”, or to change the value of a selected digit when setting time and date.