SR Instruments SR Scales SR585i-KG Service manual

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 1 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
S
by SInstruments, Inc.
Operating and Service
Manual
Model SR585i-KG
Bariatric Stand-On Scale

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 2 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
TABLE OF CONTENTS
TABLE OF FIGURES......................................................................................................................2
PACKING CHECKLIST.................................................................................................................3
ASSEMBLY.......................................................................................................................................4
REPLACEMENT PARTS AND ACCESSORIES ........................................................................7
SYSTEM DESCRIPTION AND INTENDED USE.......................................................................8
MICROBAN ANTIMICROBIAL PROTECTION.......................................................................8
STORAGE AND TRANSPORTATION ........................................................................................8
CLEANING AND DISINFECTING...............................................................................................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 Assembly Diagram ................................................................................................4
Figure 2: Display Cable Connector and Battery Compartment .................................................5
Figure 3: Hand Rail Installation.....................................................................................................5
Figure 4: Printer Mast Bracket......................................................................................................6
Figure 5: Printer Mounting Bracket..............................................................................................6
Figure 6: Button Display...............................................................................................................11
Figure 7: Battery Compartment...................................................................................................14
Figure 8: Kilogram Calibration Tolerance Table.......................................................................16
Figure 9: Calibration Switch Diagram ........................................................................................16

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 3 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
PACKING CHECKLIST
SR585i-KG Bariatric Stand-On Scale

DESCRIPTION
QUANTITY
Box 1
BASE ASSEMBLY
1 ea
MAST ASSEMBLY with DISPLAY
1 ea
DISPLAY UNIT WITH CABLE
1 ea
HANDRAIL SET WITH HARDWARE
1 ea
PACKAGE OF SIX (6) “D” CELL BATTERIES
1 ea
MEDICAL GRADE AC POWER SUPPY (SR585i-KG-AC
ONLY)
1 ea
3/8-16 FLAT HEAD SCREWS
4 ea
CALIBRATION CERTIFICATE
1 ea
WARRANTY CARD
1 ea
MANUAL
1 ea
Box 2 SR8220 Optional Printer Kit
PRINTER
1 ea
PRINTER BATTERY CHARGER
1 ea
PRINTER CABLE
1 ea
PRINTER MAST BRACKET & HARDWARE
1 ea
PRINTER MOUNTING BRACKET & HARDWARE
1 ea
PRINTER PAPER
1 ea
LOCTITE
1 ea

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 4 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
ASSEMBLY
Figure 1: Scale Assembly Diagram
STEP1: Unpack scale system and check parts against PACKING CHECKLIST. If there are
missing or damaged parts, please call Service Hotline: [phone].
STEP 2: (Figure 1) Position Mast Assembly (#1) into the Base Assembly (#2) as shown, while
feeding display cable through cable hole on the right.
STEP3: (Figure 1) Insert the four (4) 3/8-16 screws (#4) into the holes in Mast Assembly and Base
Assembly as indicated. Secure the Mast Assembly by tightening the screws into Base Assembly.
STEP 4: Gently rest the scale on its side. Verify that serial number on bottom of the Display
Unit (#5) matches that on the Bottom Cover; located on the underside of the Base Assembly (#2).
#
PART NAME
1
Mast Assembly
2
Base Assembly
3
Height Bar Assembly (optional)
4
3/8-16 Screws (4)
5
Display Unit
6
Display Cable Connector
7
Printer (optional)
8
Printer Mounting Bracket (optional)
9
Printer Mast Bracket (optional)
10
Printer Cable (optional)
11
Left Side Hand Rail
12
Right Side Hand Rail
13
AC Power Supply
Continued next page
5
1
4
3
2
Cable
Hole
e
3
13

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 5 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
11
12
ASSEMBLY (Cont’d)
STEP 5: (Figure 2) Loosen the four (4) screws on Battery Compartment Cover. Remove cover.
STEP 6: (Figure 2) Attach the Display Cable Connector (#6) to its mate in the Base Assembly.
Slide the extra cable back up into the mast pipe.
STEP 7: (Figure 2) Install the six (6) “D” cell batteries as
indicated on the Battery Compartment Cover label.
STEP 8: Re-install Battery Compartment Cover and
secure tightly secure with four (4) cover screws.
STEP9: Return the scale tothe upright position.
Figure 2: Display Cable Connector and
Battery Compartment
STEP10: (Figure 3) Insert the Left (#11) and
Right (#12) Side Hand Rails into the Rail Holder
cups on the sides of the Base Assembly(#2).
NOTE: Ensure Hand Rails are fully inserted
into the cups (it maybe necessaryto loosen the
Allen screws inthe cups to allow the rails to fit
down into cups completely).
STEP11: (Figure 3) Remove screws from
the Left and Right Hand Rail securing posts, on
the Mast Assembly (#1). Slide the top of the Left
and Right Hand Rails over the Hand Rail
securing posts.
STEP12: Install the screws through the Left
and Right handrails and intothe posts. Tighten
these screws, and the Allen head screws in the
cups, to secure the Left and Right Hand Rails
securelyin place.
NOTE: Ensure Hand Rails are tightlysecure
and donot move.
5
1
3
2
7
Hand
Rail Cup
E
Hand Rail
Cup
E
Hand Rail
Securing Post
E
Hand Rail
Securing Post
e
10
6
Figure 3: Hand Rail Installation

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 6 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
ASSEMBLY (Cont’d)
INSTALLING AC POWER SUPPLY (SR585i-KG-AC):
STEP 13: Connect AC Power Supply (#13) to the bottom side of the Display Unit and plug into
standard AC Wall outlet.
STEP 14: Press and hold “ZERO/WEIGH” button to set System Zero (see directions for
SETTING SYSTEM ZERO).
INSTALLING OPTIONAL PRINTER
STEP 1: Mount the Printer Mast Bracket (#9) to the rear of the Mast Assembly (#1) using the two
(2) mounting screws provided. NOTE: The three holes on the Printer Mast Bracket should be
towards the top of the Mast Assembly (figure 4).
STEP 2: Apply a small amount of Loctiteto the three (3) small screws provided and attach the
Printer Mounting Bracket (#8) to the Printer Mast Bracket (#9) (figure 5).
STEP 3: (Figure 3) attach the Printer (#7) to the Printer Mounting Bracket (#8) by inserting the
tabs on the Printer Mounting Bracket (figure 5) into the slots on the back of the Printer and
carefully snap in place.
STEP 4: (Figure 3) Plug the Printer Cable (#10) into the Printer and into the connector on the
bottom of the Display Unit (#5). Tighten the Printer Cable connector screws into the Display Unit
connector.
Figure 4: Printer Mast Bracket
Figure 5: Printer Mounting Bracket

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 7 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
ASSEMBLY (Cont’d)
INSTALLING OPTIONAL HEIGHT BAR ASSEMBLY
STEP 1: Remove the round plug from the top left of the Display Unit. Insert the Height Bar
Assembly into the hole in the Display Unit. Ensure the Height Bar Assembly seats correctly in the
Base Assembly (Item 3, Figure 1).
NOTE: It may be necessary to loosen the four (4) 3/8 –16 flat head Mast Base Assembly
mounting screws (Item 4, Figure 1), to allow movement of the Mast for insertion of the Height Bar
Assembly into the Base Assembly.
STEP 2: After Height Bar Assembly installation re-tighten the four (4) 3/8 –16 flat head Mast
Base Assembly mounting screws.
STEP 3: Tighten the two (2) Allen screws into the Display Unit to secure the Height Bar
Assembly to the scale.
REPLACEMENT PARTS and ACCESSORIES
Part #
Description
FRGSM06U09P1J
Medical Grade AC Power Supply
SR9110-CM
Height Bar Assembly (Optional)
SR8220
Printer Kit (optional; contains all printer parts listed below)
FRAP1300
Printer
FRAP1300BR-01
Printer Mounting Bracket
SE8294
Printer Cable
FRAP1300BP01
Rechargeable Battery Pack
FRBC1300
Printer Battery Charger
FRTP130012C
Paper, thermal printer 58mm (10 Rolls)
MF8205
Printer Mast Bracket

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 8 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
SYSTEM DESCRIPTION and INTENDED USE
SYSTEM DESCRIPTION
The SR585i-KG Bariatric Stand-On 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 SR585i-KG 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.
The SR585i-KG can be powered by a Medical Grade AC wall power supply, with the “D” cell
batteries providing backup power. Continuous wall power allows the unit to be always on and
ready to take weight readings without the need to make contact with the membrane switch.
The patient’s weight is displayed on a 16-character dot matrix LCD. The weight data may be viewed
in kilograms with a displayed resolution of 0.1 kg.
INTENDED USE
The SR585i-KG Bariatric Stand-On Scale is
specifically designed for use as a portable patient
weighing system for ambulatory or those that need to
be supported by a chair or walker. Optional equipment
includes a Height Bar, Printer, and AC Power Supply.
Maximum weight capacity must not exceed 454
kilograms gross weight.
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 and TRANSPORTATION
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).
TRANSPORTATION
To transport the SR585i-KG Bariatric Stand-On Scale, lower the Height Bar if installed, tip the
scale back and wheel it to a new location. Lower the platform back down to the floor, being
careful not to shock the scale.
WARNING
DO NOT EXCEED
MAXIMUM WEIGHT LIMIT OF
454 KG

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 9 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] 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 SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 10 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
SPECIFICATIONS
MAXIMUM WEIGHT CAPACITY
454 kg
PLATFORM SIZE
46 cm x 51 cm
HEIGHT GAUGE (optional)
Telescoping gauge –43 in to 78 in
DISPLAY TYPE
16-Character Dot Matrix LCD
DISPLAY RESOLUTION
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 weight, height, and BMI
AVERAGING
Automatic digital filter
POWER SUPPLY
Six (6) “D” cell batteries
Medical Grade AC Wall Power Supply
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 SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 11 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
BUTTON FUNCTIONS
Figure 6: Button Display
ZERO / WEIGH
Press and hold to zero. The display will read “WT = 0.0 Kg”. 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 =
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 Kg”.
Continued next page

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 12 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
BUTTON FUNCTIONS (Cont’d)
MENU
Press Menu to edit setup.
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”
Configuring scale output: Use the UP or DOWN arrow buttons to select between PRINT
and EHR. Press ENTER to save changes.
Setting printout orientation: Use the UP or DOWN arrow buttons to select between
“PRINT INVERTED” and “PRINT NORMAL”. Press ENTER to save changes.
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.
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 Kg. This action also resets previously
stored weight, height, and BMI values to zero.
When using AC Power Supply: The scale requires only an initial setting of System Zero,
or any time the display reads “PLEASE ZERO”. The scale will otherwise zero track and
remove any slight fluctuations.
When using batteries for power: It is recommended that the system be zeroed prior to
each use.
Continued next page

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 13 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
BASIC SYSTEM OPERATION (Cont’d)
WEIGHING
When using AC Power Supply: Position the patient on the scale.
When using batteries for power: Position the patient on the scale and press the
ZERO/WEIGH button.
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
kilograms; example: “WT = 55.8 Kg”. 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.
CALCULATING BMI
Press to calculate BMI.
When the BMI button is pressed, the default starting value is set either to 65 in or to 165
cm; example: “HT = 165 cm”. 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 Kg”.
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 = 55.8 Kg”, “RCL HT = 165 cm” and “RCL BMI
= 20.5”.

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 14 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
BATTERY REPLACEMENT
STEP 1: The display will read “REPLACE BATTERIES”.
STEP 2: (Figure 7) Tip the scale on its side and unscrew the four (4) screws in the Battery
Compartment Cover located on the base of the unit, between the wheels.
STEP 3: Remove and replace ALL six (6) “D” cell batteries. Refer to Battery Compartment
Cover label for placement.
STEP 4: Press the “WEIGH” button to confirm display is working.
STEP 5: Tightly close the cover.
STEP 6: Zero the system.
Figure 7: Battery Compartment
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.

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 15 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 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 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.

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 16 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
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: The weights should total at least 227kilograms (half of the
maximum scale capacity). Put aside a subset of weight that is less than
half of the combined weight. DO NOT USE barbells or un-calibrated
weights.
STEP 2: Zero the scale by pressing and holding ZERO / WEIGH
button.
STEP 3: Place the subset of calibrated weight on the scale. Wait for
scale to stabilize; note scale reading.
STEP 4: Place all of the calibrated weight on scale. Wait for
scale to stabilize; note scale reading. Remove weight.
STEP 5: The scale readings for both weights should be within the Calibration Tolerance Table
(Figure 8).
Figure 9: Calibration Switch Diagram
KILOGRAM CALIBRATION
TOLERANCE TABLE
LOW
LIMIT
APPLIED
LOAD
HIGH
LIMIT
50.0
50.0
50.1
99.9
100.0
100.1
199.8
200.0
200.2
299.7
300.0
300.3
399.6
400.0
400.4
453.5
454.0
454.5
IMPORTANT
CALIBRATION Qualified service personnel only should perform this procedure. The
SR585i-KG 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.
Continued next page
CALIBRATION SWITCH
Figure 8: Kilogram Calibration
Tolerance Table

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 17 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 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 four (4) screws on the bottom of the display housing. Lift the display
panel. Put the scale system into the Calibration Mode by switching the calibration switch on the
display board (Figure 9). “CALIBRATION” will flash on the display.
STEP 2: Select known calibrated weights, traceable to NIST.
NOTE: The weights should total at least 227kilograms (half of the maximum scale capacity). Put
aside a subset of weight that is less than half of the combined weight. DO NOT USE barbells or
un-calibrated weights.
STEP 3: Press the MENU button until “FULL = 453.59 Kg” is displayed. Change “FULL”to the
value of the total weight of the selected calibrated weights. 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 = 226.79.00 Kg” is displayed. Change “HALF”
to the value of the subset of the selected calibrated weights. 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.
STEP 8: Place the FULL weight from Step 3 on platform. Allow weight to stabilize. Press UP
arrow to save change.
STEP 9: Press ENTER to save the calibration, or WEIGH to exit without saving.
STEP 10: Remove weight and switch the scale system out of the Calibration Mode on the display
board (Figure 9).
STEP 11: Place the display panel into the display housing. Align the display panel with the four
holes in the display housing. Secure display panel with the four (4) mounting screws.
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.

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 18 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
CONFIGURING SEND BUTTON
STEP 1: Remove the four (4) screws on the bottom of the display housing. Lift the display
panel. Put the scale system into the Calibration Mode by switching the calibration switch on the
display board (Figure 9). “CALIBRATION” will flash on the display.
STEP 2: Press the “MENU” key until “DATA OUT = PRINT” is displayed
STEP 3: Press “UP” or “DOWN” key to select between “EHR” and “PRINT”
STEP 4: Press the “ENTER” key to save
STEP 5: Switch the scale system out of the Calibration Mode on the display board (Figure 9).
STEP 6: Place the display panel into the display housing. Align the display panel with the four
holes in the display housing. Secure display panel with the four (4) mounting screws.
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 kg
H is height
mmm.m is the height in cm.
B is BMI
kk.k is the BMI
U is units (kg)
uu is KG
E is end of packet.

Model SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 19 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
TROUBLESHOOTING
SYMPTOM
REASON/CORRECTIVE ACTION
The characters only appear on half of the
display.
Ensure AC power supply is firmly plugged in
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 9).
The display shows no reading at all.
Ensure AC power supply is firmly plugged in
Check to ensure batteries are installed correctly (see
directions for BATTERY REPLACEMENT).
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 SR585iBariatric Stand-On Scale
Operating and Service Manual
Part No. MAN585i-KG_MICROBAN_201006 Page 20 of 22
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
WARRANTY
FOUR YEAR LIMITED WARRANTY
Each S system 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. Purchaser should file any
claims for shortage or damage with the delivery carrier and should refuse any shipment that has
obvious external damage.
RETURN POLICY
All products being returned to SR Instruments, Inc. require a Return Goods Authorization number
(RGA). To receive an RGA, call our Customer Service at 716-693-5977 ext 103 or toll-free in the
USA and Canada at 800-654-6360 ext 103.
When inquiry is made, please supply model and serial numbers, purchase order 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 unless scale
is returned because of SR error.
No returns will be accepted after 30 days.
All returns are to be shipped FREIGHT PREPAID to: SR Instruments, Inc., 600 Young Street,
Tonawanda, NY 14150.
RESTOCKING FEE
15% fee will be assessed on return of current merchandise
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 30 days.