Manual - SR Instruments, Inc.

Manual - SR Instruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

S

by

S Instruments, Inc.

Page 1 of 22

Wheelchair Scale

Operating and Service

Manual

Serial Numbers: 6000 +

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

TABLE OF CONTENTS

Page 2 of 22

TABLE OF FIGURES ......................................................................................................................2

PACKING CHECKLIST – MODEL SR725I ................................................................................3

PACKING CHECKLIST – MODEL SR725I-L ............................................................................4

ASSEMBLY.......................................................................................................................................5

REPLACEMENT PARTS AND ACCESSORIES ........................................................................7

SYSTEM DESCRIPTION AND INTENDED USE .......................................................................8

MAINTENANCE AND CLEANING ..............................................................................................8

STORAGE AND TRANSPORTATION ........................................................................................9

SPECIFICATIONS.........................................................................................................................10

BUTTON FUNCTIONS .................................................................................................................11

BASIC SYSTEM OPERATION ....................................................................................................12

BATTERY REPLACEMENT .......................................................................................................14

THEORY OF OPERATION .........................................................................................................15

CALIBRATION ..............................................................................................................................16

CONFIGURING SEND BUTTON ................................................................................................18

TROUBLESHOOTING .................................................................................................................19

WARRANTY...................................................................................................................................20

NOTES .............................................................................................................................................21

TABLE OF FIGURES

Figure 1: Scale System Diagram ..................................................................................................... 5

Figure 2: Parts Identification List .................................................................................................. 5

Figure 3: Display Unit ..................................................................................................................... 6

Figure 4: Printer Mounting Collar ................................................................................................. 7

Figure 5: Printer Mounting Bracket .............................................................................................. 7

Figure 6: Mast Locking Lever ........................................................................................................ 9

Figure 7: Button Display ............................................................................................................... 11

Figure 8: Battery Compartment Panel Screw ............................................................................. 14

Figure 9: Calibration Tolerance Table ........................................................................................ 16

Figure 10: Calibration Switch Diagram ...................................................................................... 16

Figure 11: Display Board Calibration Switch Location ............................................................. 17

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

PACKING CHECKLIST – Model SR725i

Wheelchair Scale System

DESCRIPTION

Page 3 of 22

QUANTITY

Box 1

1 ea SCALE ASSEMBLY; 32 in x 30 in (81 cm x 76 cm)

PACKAGE OF SIX (6) “D” CELL BATTERIES

CALIBRATION CERTIFICATE

WARRANTY CARD

MANUAL

Box 2 Optional Printer Kit

1 ea

1 ea

1 ea

1 ea

PRINTER

PRINTER BATTERY CHARGER

PRINTER CABLE

PRINTER MOUNTING COLLAR& HARDWARE

PRINTER MOUNTING BRACKET & HARDWARE

PRINTER PAPER

LOCTITE

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807 Page 4 of 22

PACKING CHECKLIST – Model SR725i-L

Wheelchair Scale System

DESCRIPTION

Box 1

SCALE ASSEMBLY; 36 in x 30 in (91 cm x 76 cm)

PACKAGE OF SIX (6) “D” CELL BATTERIES

QUANTITY

1 ea

1 ea

CALIBRATION CERTIFICATE 1 ea

WARRANTY CARD 1 ea

MANUAL

Box 2 Optional Printer Kit

1 ea

PRINTER 1 ea

PRINTER BATTERY CHARGER 1 ea

PRINTER CABLE 1 ea

PRINTER MOUNTING COLLAR& HARDWARE 1 ea

PRINTER MOUNTING BRACKET & HARDWARE 1 ea

PRINTER PAPER

LOCTITE

1 ea

1 ea

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

10

1

1

5

2

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807 Page 5 of 22

ASSEMBLY

STEP 1: Unpack the scale 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 (1) matches that on the Base Assembly (3).

Figure 1: Scale System Diagram

1

10

5

8

9

4

2

3

6

7

#

5

6

7

8

1

2

3

4

9

10

PART NAME

Display Unit

Mast

Base Assembly

Mast Locking Lever

Battery Compartment Cover

Ramp

Transport Wheels

Printer Mounting Collar

(optional)

Printer Cable (optional)

Printer (optional)

Figure 2: Parts Identification List

STEP 3: (Figure 1) Lay the Base Assembly (3) with the attached Mast (2) on the floor.

STEP 4: Loosen the Mast Locking Lever (4) to unlock the Mast. Pull the Mast up and away from the scale and swing it up until the Mast is perpendicular to the platform. Engage Lever to lock the

Mast in position.

NOTE: If an optional printer has been ordered, go to Page 6 “INSTALLING OPTIONAL

PRINTER” before proceeding.

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

ASSEMBLY Cont’d

Page 6 of 22

11

Figure 3: Display Unit

STEP 5: Unscrew the Battery Cover Panel Screw (11) and remove the Battery Compartment

Cover (5) from the Display Unit (figure 3). Install the six (6) “D” cell batteries as indicated on the plastic battery cradle. Replace the cover.

STEP 6: Adjust leveling feet, located in each of the four corners of the underside of the Base

Assembly, to ensure that the scale will sit level on the floor. Note: Leveling feet must be in place to operate the scale properly.

INSTALLING OPTIONAL PRINTER

STEP 1: Loosen the Phillips Pan Head screw and the black rubber bumper on the back side of the display, until the display will lift off of the mast post.

STEP 2: Carefully loosen the display cable connector.

STEP 3: Slide the Printer Mounting Collar (9) over the Mast (2). Position the Printer Mounting

Collar approximately 2 inches from the top of the Mast. Tighten the two (2) set screws to secure the Printer Mounting Collar to the Mast. NOTE: The three (3) holes on the Printer Mounting

Collar should be towards the top of the Mast facing the same direction as the scale display readout

(Figure 4).

STEP 4: Apply a small amount of Loctite

to the two (2) small screws provided and attach the

Printer Mounting Bracket (12) to the Printer Mounting Collar (figure 5).

STEP 5: Attach the Printer to the Printer Mounting Bracket by inserting the tabs on the Printer

Mounting Bracket (12) into the slots on the back of the Printer and carefully snap in place.

STEP 6: After the Display Unit (1) is installed, plug the Printer Cable plug (9) into the Printer and into the connector on the bottom of the Display Unit; tighten Printer Cable screws.

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

Figure 4: Printer Mounting Collar

ASSEMBLY Cont’d

12

Figure 5: Printer Mounting Bracket

REPLACEMENT PARTS and ACCESSORIES

Part #

FRAP1300

FRAP1300BR-01

FRAP1300-D9

FRAP1300PCC

FRAP1300BP01

FRBC1300

FRTP130012C

MF8209

Description

Printer

Printer Mounting Bracket

Printer Cable

AAA Battery Pack

Rechargeable Battery Pack

Printer Battery Charger

Paper, thermal printer 58mm (10 Rolls)

Printer Mounting Collar

Page 7 of 22

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

SYSTEM DESCRIPTION and INTENDED USE

SYSTEM DESCRIPTION

Page 8 of 22

The SR725i / SR725i-L Wheelchair Scale 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 low power microprocessor circuitry allows the SR725i / SR725i-L to derive its power from six (6) common “D” cell batteries, which will provide up to 400 hours of weight readings before needing replacement. This eliminates the need for an external battery charger or the danger of an

AC power supply cord on a portable scale.

The patient’s weight is displayed on a 16-character dot matrix LCD. The weight data may be viewed in either pounds or kilograms with a displayed resolution of 0.1 for each.

INTENDED USE

The SR725i / SR725i-L Wheelchair Scale is specifically designed for use as a portable patient weighing system for ambulatory and non-ambulatory wheelchair bound patients. Maximum weight capacity must not exceed 1000 pounds or 454 kilograms gross weight.

WARNING

DO NOT EXCEED

MAXIMUM WEIGHT LIMIT OF

1000 LB / 454 KG

MAINTENANCE and CLEANING

The display case for the SR725i / SR725i-L Wheelchair

Scale is made of a powder-coated aluminum. Exercise

WARNING

caution when cleaning the display window as it is made of clear polyester and can be scratched by abrasive cleaners. Mild soap and water is recommended for general cleaning and disinfecting.

DO NOT use pressurized water or steam. The scale system contains microprocessor circuitry and strain gauge sensors that may be adversely affected by exposure to such an environment.

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

STORAGE and TRANSPORTATION

STORAGE

Page 9 of 22

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).

TRANSPORTATION

To transport the scale, unlock Mast Locking Lever (Figure 6). Fold Mast Pipe Assembly down into the scale platform assembly. Lock the Mast Locking Lever to secure the Mast Pipe Assembly in position. Hold the Mast Pipe Assembly close to platform assembly and roll the scale to the new location.

See ASSEMBLY for detailed instructions to re-assemble the scale system. When placing the scale system in the new location, care should be taken not to shock the unit. Lift the scale up and onto the Transport Wheels.

Figure 6: Mast Locking Lever

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

SPECIFICATIONS

MAXIMUM WEIGHT CAPACITY 1000 lb or 454 kg

PLATFORM SIZE

SR725i: 32 in x 30 in (81 cm x 76 cm)

SR725i-L: 36 in x 30 in (91 cm x 76 cm)

Page 10 of 22

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)

ENTER Stores displayed reading in memory

RECALLL 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.

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

BUTTON FUNCTIONS

Page 11 of 22

Figure 7: Button Display

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

MENU

Press to recall the last stable weight. Display will scroll thru “WT”, “HT”, and “BMI” stored values in approximately two second intervals.

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”

Continued next page

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,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

BUTTON FUNCTIONS cont’d

ENTER

Page 12 of 22

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”.

UP

DOWN

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.

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.

BASIC SYSTEM OPERATION

SETTING SYSTEM ZERO

Make sure the scale is free and clear of any obstructions and press and hold the ZERO /

WEIGH button. The displayed message will indicate “HOLD TO ZERO” and count down to zero. Make sure that nothing is in contact with the scale while zeroing the system.

In a few seconds, the display will read “WT = 0.0 Lb” (or Kg). This action also resets previously stored weight, height, and BMI values to zero.

WEIGHING

Press the ZERO/WEIGH button. Position the patient on the scale. Lock the patient’s wheelchair brake to prevent movement. The weight stable indicator

” flashes on the display. When the weight is stable, the weight stable indicator remains solid. The display will indicate the patient’s weight in either pounds or kilograms; example: “WT = 123.5

Lb”. The stable weight is auto stored in memory.

NOTE: If patient will be using a cane for support on the scale, place the cane on the scale while zeroing the system. This will ensure that the patient’s NET weight will be displayed.

It is recommended that the system be zeroed prior to each new patient.

CAUTION

DO NOT LEAVE PATIENT UNATTENDED ON

THE SCALE PLATFORM

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,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

CALCULATING BMI

Press to calculate BMI.

Page 13 of 22

When the BMI button is pressed, the default starting value is set either to 65 in or to 165 cm; example: “HT = 65 in”. Use the UP or DOWN arrows to adjust the default height to the value of the patient’s height.

NOTE: To calculate the BMI, a patient’s stable weight needs be stored as indicated in

WEIGHING” above, if no stable weight has not been stored “NO WEIGHT DATA” will be displayed and the display will then go back to the weigh screen “WT = 0.0 Lb”.

Press ENTER to save height data and display BMI calculation. The BMI will be displayed; example: “BMI = 20.5”.

RECALLING LAST STABLE WEIGHT

Press to recall last stable weight.

The display will scroll thru “WT”, “HT”, and “BMI” stored values in approximately two second intervals; example: “RCL WT = 123.5 Lb”, “RCL HT = 65 in” and “RCL BMI

= 20.5”.

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

BATTERY REPLACEMENT

WARNING

DO NOT REMOVE BATTERIES WHILE

SCALE IS ON. ALLOW SCALE TO SHUT

DOWN NATURALLY THRU TIMING

OUT. THIS PREVENTS POSSIBLE

VOLTAGE DRAIN ON THE PRINTED

CIRCUIT BOARD COIN BATTERY.

STEP 1: The display will read “REPLACE BATTERY”.

Page 14 of 22

STEP 2: (Figure 8) Unscrew the panel screw on the Battery Compartment Cover (13) and remove the battery compartment cover.

STEP 3: Remove and replace ALL six (6) “D” cell batteries. Refer to diagram in the battery compartment for placement.

STEP 4: Press the “WEIGH” button to confirm display is working.

STEP 5: Secure the battery cover using the panel screw.

STEP 6: Zero the system.

13

Figure 8: Battery Compartment Panel Screw

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

THEORY OF OPERATION

Page 15 of 22

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 on-chip analog to digital converter. The digital signal is filtered, converted to appropriate units, and displayed on the liquid crystal display.

Strain-gauge force cells each contain four strain gauges mounted in a full Wheatstone-bridge configuration. These bridges convert the physical movement of the force cell, due to the applied mass on the system, into minute changes in electrical resistance. These changes in resistance produce a voltage difference across the Wheatstone-bridge, which is amplified by the operational amplifier. The amplifier is configured to current sum the output of each cell, with potentiometers serving to normalize the sensitivity (voltage out per unit of weight applied) of each bridge. The offset potentiometer produces a small current, which nulls the output of the amplifier for an unloaded system.

The output of the operational amplifier is digitized by the analog to digital converter. The sigmadelta converter sums a rapid sequence of 0's (0 volts) and 1's (reference voltage) to achieve balance with the input signal from the amplifier.

The micro-controller filters the digital output of the analog to digital converter, subtracts the value saved during the system zero operation and scales the filtered output, and then displays the result on the liquid crystal display. The micro-controller performs a moving-median filter of data for continuous weigh and, for AutoHold; the micro-controller performs checks for signal stability before locking in on the reading. If the data variance is greater than 0.1% in the AutoHold mode, the micro-controller will reset the filter and start a new filtering period.

The micro-controller can be placed in a calibration mode, where the system can be re-calibrated.

In the calibration mode, the system slope is calculated from two points (zero and full scale) in the

2-point calibration mode or the slope and change in slope is calculated from three points (zero, half, and full scale) in the 3-point calibration mode.

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600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807 Page 16 of 22

CALIBRATION

NOTE: Ensure that nothing is in contact with the scale system during this procedure. Remove hands from the system when noting the displayed calibration results.

CHECKING CALIBRATION

STEP 1: Select two (2) known calibrated weights, traceable to

NIST.

CALIBRATION

TOLERANCE TABLE

NOTE: The first weight should be at least 500 pounds (half of the maximum scale capacity). The second weight should be less than half of the first weight. DO NOT USE barbells or uncalibrated weights.

LOW APPLIED HIGH

LIMIT LOAD LIMIT

99.9

100.0

100.1

199.8

200.0

200.2

STEP 2: Zero the scale by pressing and holding ZERO /

WEIGH button.

299.7

300.0

300.3

399.6

400.0

400.4

STEP 3: Place the first calibrated weight on the scale. Wait for scale to stabilize; note scale reading. Remove weight.

499.5

500.0

500.5

599.4

600.0

600.6

STEP 4: Place second calibrated weight on scale. Wait for scale to stabilize; note scale reading. Remove weight.

699.3

700.0

700.7

799.2

800.0

800.8

STEP 5: The scale readings for both weights should be within the

Calibration Tolerance (Figure 9).

899.1

900.0

900.9

999.0

1000.0

1001.0

Figure 9: Calibration Tolerance Table

IMPORTANT

CALIBRATION Qualified service personnel only should perform this procedure. The

SR725i / SR725i-L load cells have no user serviceable components and should not be tampered with for any reason. Re-calibration is generally not required, but should be verified periodically to ensure accuracy. The recommendation for calibration check is at least once every 12 months, or as individual maintenance policy requires.

CALIBRATION SWITCH

Figure 10: Calibration Switch Diagram

Continued next page

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,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

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Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

CALIBRATION con’t.

Page 17 of 22

CAUTION

The integrated circuits and semiconductors on the printed circuit boards may be damaged by electrostatic discharge (ESD). Be sure to use proper handling precautions at all times.

SETTING CALIBRATION

NOTE: Ensure that nothing is in contact with the scale system during this procedure. Remove hands from the system when noting the displayed calibration results.

STEP 1: Remove the three (3) screws on the left side cover of the display housing. Put the scale system into the Calibration Mode by switching the calibration switch (14) on the display board

(Figure 11). “CALIBRATION” will flash on the display.

14

Figure 11: Display Board Calibration Switch Location

STEP 2: Select two (2) known calibrated weights, traceable to NIST.

NOTE: The first weight should be at least 500 pounds (half of the maximum scale capacity). The second weight should be less than half of the first weight. DO NOT USE barbells or uncalibrated weights.

STEP 3: Press the MENU button until “FULL = 1000.00 Lb” is displayed. Set the FULL value of the first selected calibrated weight. Use the UP arrow button to select the digit and the DOWN arrow button to change digit. Press ENTER to save changes.

STEP 4: Press the MENU button until “HALF = 500.00 Lb” is displayed. Set the HALF value of the second selected calibrated weight. Use the UP arrow button to select the digit and the

DOWN arrow button to change the digit. Press ENTER to save changes.

STEP 5: Press MENU button until “3 Pt Calibration” is displayed. Press the UP arrow button.

STEP 6: Zero the scale by removing all weight from the platform. Press the UP arrow button.

STEP 7: Place the HALF weight from Step 4 on platform. Allow weight to stabilize. Press UP arrow to save change. Remove weight.

Continued next page

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,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

CALIBRATION con’t.

Page 18 of 22

STEP 8: Place the FULL weight from Step 3 on platform. Allow weight to stabilize. Press UP arrow to save change. Remove weight.

STEP 9: Press ENTER to save the calibration, or WEIGH to exit without saving.

STEP 10: Switch the scale system out of the Calibration Mode on the display board (Figure 13).

STEP 11: Reinstall the side cover onto the display housing and secure in place with three (3) mounting screws.

CONFIGURING SEND BUTTON

STEP 1: Press the “MENU” key until “DATA OUT = PRINT” is displayed

STEP 2: Press “UP” or “DOWN” key to select between “EHR” and “PRINT

STEP 3: Press the “ENTER” key to save

EHR OUTPUT

Electronic Medical Records (EMR) / Electronic Health Records (EHR) technology is supported by the i-series scales from SR Instruments. The EMR/ EHR software is not included with scale.

There are many different EMR/ EHR software available and the connectivity of the scale to the software requires the services of a professional.

A null modem cable is required to communicate with the scale.

Scale output when send button is configured to Electronic Health Records is as follows:

<esc>R<esc>Wnnn.n<esc>Hmmm.m<esc>Bkk.k<esc>Uuu<esc>E

Where : R is read

W is weight nnn.n is the weight in Lb or kg

H is height mmm.m is the height in inches or cm.

B is BMI kk.k is the BMI

U is units (lb or kg; in or cm) uu is LB or KG

E is end of packet.

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

TROUBLESHOOTING

Page 19 of 22

SYMPTOM

The characters only appear on half of the display.

REASON/CORRECTIVE ACTION

Press the “WEIGH” button or remove one battery.

Wait five seconds, then re-install the battery and try the “WEIGH” button again.

The display lights appear to work, but do not respond to button activation.

Check to ensure the membrane switch label is correctly plugged into display board.

Check to ensure the calibration switch is not in the

Calibration Mode (Figure 13).

The display shows no reading at all.

Check to ensure batteries are installed correctly (see directions for

BATTERY REPLACEMENT).

Check display cable to make sure it is connected securely.

The display feels loose when raising or lowering.

Remove the black plastic plug located below the display rotation assembly. Insert a 5/32” Allen Key and slightly tighten the tensioning screw until the mast feels

“tight” again.

For additional information or assistance, telephone our Service Hotline: 1-800-654-6360 or e-mail: [email protected]

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807 Page 20 of 22

WARRANTY

FOUR YEAR LIMITED WARRANTY

Each

SR Instruments, Inc. is manufactured with high quality components. SR Instruments, Inc. warrants that all new equipment will be free from defects in material or workmanship, under normal use and service, for a period of four (4) years from the date of purchase by the original purchaser. Normal wear and tear, injury by natural forces, user neglect, and purposeful destruction are not covered by this warranty. Warranty service must be performed by the factory or an authorized repair station. Service provided on equipment returned to the factory or authorized repair station includes labor to replace defective parts. Goods returned must be shipped with transportation and/or broker charges prepaid. SR Instruments, Inc.’s obligation is limited to replacement of parts that have been so returned and are disclosed to SR Instruments, Inc.’s satisfaction to be defective. The provisions of this warranty clause are in lieu of all other warranties, expressed or implied, and of all other obligations or liabilities on 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. be liable for any subsequent or special damages. Any misuse, improper installation, or tampering, shall void this warranty.

DAMAGED SHIPMENTS

Title passes to purchaser upon delivery to Transportation Company. Any claims for shortage or damage should be filed with the delivery carrier by purchaser.

RETURN POLICY

All products being returned to SR Instruments, Inc. require a Return Goods Authorization number

(RGA). To receive an RGA, call our Technical Service Team at 716-693-5977 or toll-free in the

USA and Canada at 800-654-6360.

When inquiry is made, please supply model and serial numbers, purchase order, if the scale was bought on contract, and reason for return.

Generally, deleted, damaged, and outdated merchandise will not be accepted for credit. A minimum restocking charge of 15% will be assessed on return of current merchandise.

All returns are to be shipped FREIGHT PREPAID to: SR Instruments, Inc., 600 Young Street,

Tonawanda, NY 14150.

RESTOCKING FEE

15% fee for any scale that has been opened and used

10% fee for any scale returned that has been ordered incorrectly or refused delivery with no model change

5% fee if an error in ordering has been made and a different model exchanged

No fees will be charged if the scale is returned because of an error on the part of SR

Instruments, Inc.

No returns accepted after 60 days.

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

NOTES

Page 21 of 22

SInstruments, Inc.

,

600 Young Street, Tonawanda, NY 14150

Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com

email: [email protected]

Copyright 2014

SInstruments, Inc.

Model SR725i Wheelchair Scale

Operating and Service Manual - S/N 6000+

Part No. MAN725i_140807

S

By

SInstruments, Inc.

Page 22 of 22

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

email: [email protected]

Copyright 2014

SInstruments, Inc.

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