SRScales SR 7010i Service manual

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 1 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
S
by SInstruments, Inc.
Operating and Service
Manual
Model SR 7010i
Wall Mount Platform Scale

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 2 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
TABLE OF CONTENTS
TABLE OF FIGURES......................................................................................................................2
PACKING CHECKLIST.................................................................................................................3
ASSEMBLY.......................................................................................................................................3
REPLACEMENT PARTS AND ACCESSORIES ........................................................................4
SYSTEM DESCRIPTION AND INTENDED USE.......................................................................5
MAINTENANCE AND CLEANING..............................................................................................5
STORAGE.........................................................................................................................................5
SPECIFICATIONS...........................................................................................................................6
BUTTON FUNCTIONS...................................................................................................................7
BUTTON FUNCTIONS CON’T .....................................................................................................8
BASIC SYSTEM OPERATION......................................................................................................8
THEORY OF OPERATION ...........................................................................................................9
CALIBRATION..............................................................................................................................10
TROUBLESHOOTING.................................................................................................................12
WARRANTY...................................................................................................................................13
TABLE OF FIGURES
Figure 1: Wall Hanger..................................................................................................................3
Figure 2: Button Display..............................................................................................................7
Figure 3: Calibration Table .......................................................................................................10
Figure 4: Calibration Switch Diagram .....................................................................................10

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 3 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
PACKING CHECKLIST
SR7010iWall Mount Platform Scale
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: To mount the SR7010iWall Mount Platform Scale use the Wall Hanger (Figure 1)
supplied with the scale.
NOTE: The Wall Hanger should be installed by qualified personnel.
STEP 3: Mount the Wall Hanger by placing the SR7010i scale in an upright position against the
wall at the location for installation. Place the SR7010iwall frame (3” x 1”) cross member into the
channel of the Wall Hanger.
NOTE: The Wall Hanger is not intended to support the load of the scale. The scale frame must be
supported by the floor. Ensure the hanger holes are located at the top as shown in Figure 1.

DESCRIPTION
QUANTITY
PLATFORM SCALE
1 ea
MOUNTING HANGER AND HARDWARE
1 ea
AC POWER SUPPLY
1 ea
CALIBRATION CERTIFICATE
1 ea
WARRANTY CARD
1 ea
MANUAL
1 ea
Figure 1: Wall Hanger
Continued next page

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 4 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
ASSEMBLY cont’d
STEP 4: Position the Wall Hanger so that the wall frame cross member is centered in the Wall
Hanger and the Wall Hanger is pressed against the bottom of the cross member.
STEP 5: Using the Wall Hanger as a template, mark the location of the four (4) Wall Hanger
holes on the wall.
STEP 6: Remove the Wall Hanger and drill four (4) pilot holes, no larger than ¼” diameter in the
locations marked. Install the four (4) Self Drilling, Screw Anchors.
STEP 7: Position the Wall Hanger on the wall frame cross member. Screw the Wall Hanger to
the screw anchors using the four (4) Phillips #8 x 1” Flat Head screws supplied.
REPLACEMENT PARTS and ACCESSORIES
Part #
Description
FRTP211C1
Paper, thermal printer 58mm (15 rolls)
FRMW173K
AC Power Supply

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 5 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
SYSTEM DESCRIPTION and INTENDED USE
SYSTEM DESCRIPTION
The SR7010iWall Mount Platform 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 SR7010ilow power microprocessor circuitry is powered by an UL recognized AC wall power
supply.
The patient’s weight is displayed on a 16-character dot matrix LCD w/LED backlight. The weight
data may be viewed either in pounds or kilograms with a displayed resolution of 0.1 for each.
The SR7010iWall Mount Platform Scale system has a 38” x 48” (96.5 cm x 121.9 cm) platform
weighing surface.
The scale system has a programmable Automatic Power Down (APD) for adjusting scale on-time.
INTENDED USE
The SR7010iWall Mount Platform Scale system is
specifically designed for weighing ambulatory and non-
ambulatory stretcher and wheelchair bound patients and
is a preferred means of gathering patient weight data of
up to 1000 pounds or 454 kilograms.
MAINTENANCE and CLEANING
SR7010iWall Mount Platform Scale system
is made of powder-coated aluminum.
Exercise 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.
STORAGE
STORAGE
If storing this equipment for periods longer than three (3) months store in the upright position to
prevent damage to the hydraulic cylinders. 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
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.

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 6 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
SPECIFICATIONS
MAXIMUM WEIGHT CAPACITY
1000 lbs or 454 kg
PLATFORM SIZE
38 in x 48 in (96.5 cm x 121.9 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
Auto Zero when platform is first put down. One button
operation after platform is left down.
AUTO POWER DOWN
Adjustable between 30 to 300 seconds
AVERAGING
Automatic digital filter
POWER SUPPLY
AC Wall Power Supply, UL recognized.
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%-85%
Avoid exposure to high-pressure water or steam.
TRANSPORTATION and
STORAGE
Storage and transportation 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). Store in the upright position if
storing longer than three (3) months.

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 7 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
BUTTON FUNCTIONS
WEIGH
Press and hold to zero scale. Button is used to zero the system before placing the patient
on the scale. Ensure that nothing is in contact with the weighing surface during this
procedure.
SEND (PRINTER)
Press to send stored values to printer. Output values include time, date, and weight. If
BMI was calculated, BMI and height will be included in the output values. Also, low
paper is an output value.
RECALL
Press to recall the last stored weight. The stored weight will be erased when the scale is
zero or another stable weight is stored.
BMI
Press to calculate BMI. When the “BMI”is pressed, the default 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”.
MENU Press Menu to toggle through the menu options.
Setting the UNITS: Use UP or DOWN arrow buttons to select “Lb/ in” or “Kg/ cm”.
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”
Figure 2: Button Display
Continued next page

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 8 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
BUTTON FUNCTIONS con’t
ENTER Press to save change in digits for calibration, for unit’s set-up, for time and date set-up
and saving completed calibration data.
UP / SELECT
Press UP to adjust height up from the default for BMI calculation, to increase the scale’s
“on time”, or to select a digit when setting time and date.
DOWN / CHANGE
Press DOWN to adjust the height down from the default for BMI calculation, 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
Scale will auto-zero when the platform is first lowered. Make sure the scale is free and clear
of any obstructions. When platform is left down, press and hold the ZERO / WEIGH
button. The displayed message will indicate “HOLD TO ZERO”and count down to zero.
Release the button when display message indicates “HANDS OFF”. 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).
WEIGHING
Position the patient on the scale. 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.
RECALLING LAST STORED WEIGHT
Press to recall last stored weight. The stored weight will be erased when the scale is zero
or another stable weight is stored.

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 9 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
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 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 sigma-
delta 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 the micro-controller performs checks for signal stability before locking in on the
reading.
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.

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 10 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
LOW
LIMIT
APPLIED
LOAD
HIGH
LIMIT
99.9 100.0 100.1
199.8 200.0 200.2
299.7 300.0 300.3
399.6 400.0 400.4
499.5 500.0 500.5
599.4 600.0 600.6
699.3 700.0 700.7
799.2 800.0 800.8
899.1 900.0 900.7
999.0 1000.0 1001.0
CALIBRATION
TOLERANCE TABLE
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 known calibrated weights, traceable to NIST.
NOTE: DO NOT USE barbells or uncalibrated weights.
STEP 2: Zero the scale by pressing and holding the left ZERO button.
STEP 3: Place the calibrated weight on the scale. Wait for scale to
stabilize; note scale reading.
STEP 4: Scale readings should be within Calibration Tolerance Table
(Figure 3)
Figure 3: Calibration Table
Figure 4: Calibration Switch Diagram
IMPORTANT
CALIBRATION Qualified service personnel only should perform this procedure. The
SR7010iload 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
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.
Continued next page

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 11 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
CALIBRATION cont’d
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 two (2) screws on the display assembly cover. Remove the display
assembly from the scale. Put the scale system into the Calibration Mode by switching the
calibration switch on the display board (Figure 4).
STEP 2: Select known calibrated weights, traceable to NIST, up to the Full Scale value
(maximum capacity).
STEP 3: Press the “MENU”button until “1000.0Lb FULL” is displayed. Set the FULL value to the
actual quantity of calibrated weight being used for Full Scale. Use the “UP”arrow button to select the
digit and the “DOWN”arrow button to change digit. Press “ENTER”to save changes. Press
“WEIGH” button to abort any changes.
STEP 4: Press the MENU button until “500.0Lb HALF” is displayed.
NOTE: The Half-Scale value is a value between zero and the Full Scale values. It is usually
close to half the Full Scale value.
Set the HALF value to the actual quantity of calibrated weight being used for Half Scale. Use the
“UP”arrow button to select the digit and the “DOWN”arrow button to change the digit. Press
“ENTER” to save changes. Press “WEIGH” to abort the changes.
STEP 5: Press MENU button until “3 PT CAL” is displayed. Press the “UP”arrow button.
STEP 6: Zero the scale by removing all weight from the platform. Press the “UP”arrow button
to “ADD HALF”.
STEP 7: Place the calibrated weight on platform for HALF Scale. Allow weight to stabilize.
Press “UP”arrow button to save change.
STEP 8: Place the calibrated weight on platform for FULL Scale. Allow weight to stabilize.
Press “UP”arrow to save change.
STEP 9: Press “ENTER” button to save the calibration, or “WEIGH” button to exit without
saving.
STEP 10: Switch the scale system out of the Calibration Mode on the display board (Figure 4).
NOTE: Ensure that no wires have become unplugged during calibration
STEP 11: Place the display assembly into the scale frame. Attach using the two (2) display cover
screws.

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 12 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
TROUBLESHOOTING
SYMPTOM
REASON/CORRECTIVE ACTION
The characters only appear on half of the
display.
Press the “WEIGH” button or disconnect power.
Wait five seconds, then re-connect the power 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 4).
The display shows no reading at all.
Check that wall power supply is plugged in. Check
display cable to make sure it is connected securely.
For additional information or assistance, telephone our Service Hotline: [phone]
or e-mail: [e-mail]

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 13 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
WARRANTY
FOUR YEAR LIMITED WARRANTY
Ssystemsare 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.

Model SR7010iWall Mount Platform Scale
Operating and Service Manual
Part No. MAN7010i_150908 Page 14 of 14
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected]m Copyright 2015 SInstruments, Inc.
S
by SInstruments, Inc.
Precision & Technology in
Perfect Balance®