SR Instruments SR Scales SR630i-KG Service manual

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 1 of 20
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 SR630i-KG
Pediatric Scale

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 2 of 20
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 - MODEL SR630I-KG.........................................................................3
PACKING CHECKLIST - MODEL SR635I-KG.........................................................................4
SR630I-KG ASSEMBLY .................................................................................................................5
SR635I-KG CART ASSEMBLY.....................................................................................................6
REPLACEMENT PARTS AND ACCESSORIES ........................................................................7
SYSTEM DESCRIPTION AND INTENDED USE.......................................................................8
MICROBAN ANTIMICROBIAL PROTECTION.......................................................................8
STORAGE AND TRANSPORTATION ........................................................................................8
MAINTENANCE AND CLEANING..............................................................................................9
SPECIFICATIONS.........................................................................................................................10
BUTTON FUNCTIONS.................................................................................................................11
BATTERY REPLACEMENT.......................................................................................................13
THEORY OF OPERATION .........................................................................................................13
CALIBRATION..............................................................................................................................15
TROUBLESHOOTING.................................................................................................................17
WARRANTY...................................................................................................................................18
NOTES.............................................................................................................................................19
TABLE OF FIGURES
Figure 1: Pediatric Scale Packing List...........................................................................................3
Figure 2: Pediatric Scale with Cart Packing List .........................................................................4
Figure 3: Battery Compartment Location.....................................................................................5
Figure 4: Cart Assembly .................................................................................................................6
Figure 5: Scale Mounting Scale Location......................................................................................7
Figure 6: Battery Compartment Location.....................................................................................7
Figure 7: Button Display Label ....................................................................................................11
Figure 8: Battery Replacement.....................................................................................................13
Figure 9: Calibration.....................................................................................................................15
Figure 10: Calibration Switch Location ......................................................................................16

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 3 of 20
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 - Model SR630i-KG
Pediatric Scale

DESCRIPTION
QUANTITY
SCALE BASE
1 ea
AC POWER SUPPLY
1 ea
RIGHT ANGLE ADAPTER FOR AC POWER SUPPLY
1 ea
PACKAGE OF SIX (6) D-CELL BATTERIES (INSTALLED)
6 ea
CALIBRATION CERTIFICATE
1 ea
WARRANTY CARD
1 ea
MANUAL
1 ea
Figure 1: Pediatric Scale
Packing List

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 4 of 20
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 - Model SR635i-KG
Pediatric Scale with Cart

DESCRIPTION
QUANTITY
SCALE BASE
1 ea
AC POWER SUPPLY
1 ea
RIGHT ANGLE ADAPTER FOR AC POWER SUPPLY
1 ea
PACKAGE OF SIX (6) D-CELL BATTERIES (INSTALLED)
6 ea
CALIBRATION CERTIFICATE
1 ea
WARRANTY CARD
1 ea
MANUAL
1 ea
SM9362 CART KIT- BOX MAY SHIP SEPARATE
QUANTITY
INNER TUBE ASSEMBLY WITH CASTER
2 ea
INNER TUBE ASSEMBLY WITH LOCKING CASTER
2 ea
OUTER SPACER TUBE –3”
4 ea
OUTER SPACER TUBE –13”
4 ea
OUTER SPACER TUBE –10.25”
4 ea
SHELF ASSEMBLY
2 ea
TOP MOUNTING PLATE
2 ea
¼-20 X 1” SOCKET BUTTON HEAD SCREW
8 ea
Figure 2: PediatricScale with Cart
Packing List

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 5 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
SR630i-KG ASSEMBLY
STEP 1: Unpack scale system and check parts against PACKING CHECKLIST. If there are
any missing or damaged parts, please call Service Hotline [phone].
Allow scale to acclimate to room temperature before use.
STEP 2: (Figure 3) Install the six (6) “D” cell batteries into the Battery Compartment on
underside of scale. Attach the Battery Compartment Cover using the two (2) cover
screws. Screw cover down securely to Scale Base.
If batteries shipped installed, leave battery cover installed and remove insulator strip
(clear polyester strip extending from battery compartment).
STEP 3: (Figure 3) Place the Scale onto tabletop. Connect AC Power supply between scale and
Wall Outlet (attach right angle adapter to power supply if scale is placed against a wall)
and press “ZERO” button to activate scale.
Figure 3: Battery Compartment Location

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 6 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
SR635i-KG CART ASSEMBLY
STEP 1: Unpack scale system and check parts against PACKING CHECKLIST. If there are
any missing or damaged parts, please call Service Hotline [phone].
Allow scale to acclimate to room temperature before use.
STEP 2: Remove shipping washers from
inner support tubes and discard
(DO NOT DISCARD button head
screws - used in Step 9)
STEP 3: Remove the 10.25" and 13" tubes
from each inner support tube
STEP 4: Place one shelf over an inner
support tube with a locking caster
STEP 5: Place one 13" tube over the inner
support tube
STEP 6: Place one shelf over the inner
support tube
STEP 7: Place one 10.25" tube over the
inner support tube
STEP 8: Complete the next assembly on the
same end using one inner support
tube assembly with a caster
STEP 9: Secure the top plate to both inner
support tubes using the 1/4-20 x 1"
button head screws
STEP 10: Complete other side in the same
manner making sure that both
locking caster are in front
STEP 11: Make sure that all four screws are
tight
Figure 4: Cart Assembly
Top Mounting
Plate
10.25” Outer Tube
13” Outer Tube
3” Outer Tube
Inner Tube
Assembly
Locking
Casters
(Front)
Casters
(Back)
Shelf Assembly
Shelf Assembly
¼-20 x 1” Button
Head Cap Screw
NOTE: The additional four
1/4-20 x 1" button head
screws are for mounting the
Pediatric Scale to the cart

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 7 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
CART ASSEMBLY (Cont’d)
STEP 12: Remove the four feet from the corners of the scale (Figure 5). Retain feet if scale may
again be used as table-top version.
STEP 13: (Figure 5 & Figure 3) Place the Scale on top of the cart, aligning threaded holes on
underside of scale with the holes on the Top Plate. Ensure the Display is located to the back of the
cart, on the opposite side of the locking casters (Figure 4). Attach scale using four (4) ¼-20 X 1”
mounting screws.
REPLACEMENT PARTS and ACCESSORIES
Figure 5: Scale MountingScale Location
Figure 6: Battery Compartment Location
Part #
Description
FRGSM06U09P1J
AC POWER SUPPLY
FRDCPLUGP1JR
RIGHT ANGLE ADAPTER
FBM1012000
REPLACEMENT FOOT
SM9362
TRANSPORT CART (OPTIONAL)
SCALE MOUNTING
SCREWS
BATTERY
COMPARTMENT

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 8 of 20
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 SR630i-KG Pediatric 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 child’s weight regardless of weight
distribution.
The child’s weight is displayed in kilograms on a 16-character dot matrix LCD. The displayed
resolution is 0.005 kg.
INTENDED USE
The SR630i-KG Pediatric Scale is designed for use in pediatric applications and is not intended as
a patient transport device. Maximum weight capacity must not exceed 20 kilograms gross weight.
The cart included with the SR635i-KG Pediatric Scale is designed for moving the scale without a
patient from one location to another. This is not intended as a patient transport device. Maximum
weight capacity must not exceed 20 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
If storing this equipment for periods longer than three (3) months, remove the batteries. To
maintain proper operation of this instrument, 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).
Prior to use, allow scale to acclimate to room temperature.
The cart included with the SR635i-KG Pediatric Scale is designed for moving the scale without a
patient from one location to another. This is not intended as a patient transport device. Maximum
weight capacity must not exceed 20 kilograms gross weight.
WARNING
DO NOT EXCEED
MAXIMUM WEIGHT LIMIT OF
20 KG
WARNING
NEVER TRANSPORT A PATIENT ON
THE PEDIATRIC SCALE

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 9 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
MAINTENANCE and CLEANING
Exercise caution when cleaning the display window and pediatric cradle as both can be scratched
by abrasive cleaners. Mild soap and water is recommended for general cleaning.
CLEANING
To clean the pediatric cradle and display / user interface:
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 pediatric cradle and display / user interface:
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: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 10 of 20
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
20 kg
CRADLE SIZE
29 1/2 in x 13 1/2 in (75 cm x 34 cm)
DISPLAY TYPE
16-Character Dot-Matrix LCD
DISPLAY RESOLUTION
0.005 kg
ACCURACY
0.1% +/- 1 digit of displayed resolution for calibration
range
AUTO ZERO
One button operation
AUTO POWER DOWN
Approximately 30 seconds
LAST WEIGHT RECALL
Press “RECALL” button to recall last stored displayed
reading
AVERAGING
Automatic digital filter
POWER SUPPLY
Six (6) “D” cell batteries
Medical Grade AC Wall Power Supply with adapter
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.
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). Remove batteries if storing longer
than three (3) months.
Prior to use, allow scale to acclimate to room
temperature.
Never transport a patient on the scale. Cart is meant for
scale transport only.

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 11 of 20
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
ZERO
Press to zero. The display will read “0.000 Kg”. This is used to zero the system
before placing the patient on the scale system. This action also resets previously
stored weight values to zero. Ensure that nothing is in contact with the molded
plastic cradle during this procedure.
SEND
“SEND” button requires additional set up.
Contact SR Instruments, Inc for further details.
RECALL
Press to recall the last stable weight.
ENTER
Press to save changes to “MENU” options.
WEIGH
Press “WEIGH” to begin new weigh cycle
Continued next page
Figure 7: Button Display Label

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 12 of 20
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.
Configuring scale output: Not available.
Setting TIME and DATE: Use the UP arrow button to select digit. To change digit
use the DOWN arrow button. Press ENTER to save changes.
NOTE: When selected, the year position defaults to “00”
UP
Press UP to increase the scale’s “on time” or to select a digit when setting time and
date.
DOWN
Press DOWN 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 or contact and press the
“ZERO” button with all linens, pads, etc. in place and release.
Wait for the display to display “0.000 Kg”. This action also resets previously stored
weight to zero.
WARNING
NEVER TRANSPORT A PATIENT
ON THE PEDIATRIC SCALE
Continued next page
WARNING
NEVER LEAVE CHILD
UNATTENTED ON THE SCALE

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 13 of 20
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
While the display is active, the scale will auto-weigh when the child is placed in the
cradle. The weight stable indicator “” flashes then remains solid when stable. A
stable weight will automatically be stored into memory.
To initiate a new weigh cycle, with the child still on scale, manually press the
“WEIGH”button. Pressing the “WEIGH” button will clear the memory and take a
new reading. Once a new stable weight is indicated, the weight will be stored in
memory.
NOTE: If there are any accessories (blanket, diaper, etc.), place them on the scale
before 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.
RECALLING LAST STABLE WEIGHT
Press the recall button will display the last stable weight. A recalled weight will be
indicated by “RCL”; for example: “RCL WT 12.345 Kg”.
BATTERY REPLACEMENT
STEP1: Display will read “REPLACE BATTERIES”.
STEP 2: (Figure 8) Locate Battery Compartment Cover on underside of scale and unscrew the
two (2) cover screws.
STEP 3: Remove and replace ALL six (6) “D” cell batteries. Refer to battery compartment
cover label for placement.
STEP 4: Replace the Battery Compartment Cover and securely tighten screws.
STEP 5: Press the “ZERO”button to confirm display is working.
STEP 6: Zero the system.
Figure 8: Battery Replacement

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 14 of 20
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 analog to digital converter. The digital signal is transferred to a
micro-controller where it is filtered, converted to appropriate units and displayed on a liquid crystal
display.
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.
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 from the amplifier.
The micro-controller averages and filters the digital output of the analog to digital converter, subtracts
the value saved during the system zero operation and scales the filtered output, 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: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 15 of 20
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) adding up to the maximum scale
capacity.
NOTE: DO NOT USE barbells or uncalibrated weights.
STEP 2: Zero the scale by pressing the ZERO button.
STEP 3: Place the first calibrated weight on the scale. Wait for scale to stabilize; note scale
reading.
STEP 4: Repeat STEP 3 up to maximum scale capacity by pressing WEIGH button after adding
each weight. The scale readings should be within the Calibration Tolerance Table (Figure 9).
STEP 5: Remove weight.
CALIBRATION
TOLERANCE TABLE
LOW
LIMIT
APPLIED
LOAD
(kg)
HIGH
LIMIT
4.995
5.000
5.005
9.990
10.000
10.010
14.985
15.000
15.015
19.980
20.000
20.020
Figure 9: Calibration
Tolerance Table

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 16 of 20
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)
CALIBRATION PROCEDURE
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.
STEP1: Remove the three (3) screws from the left side of display housing end cap and remove
the end cap. Set end cap and screws aside.
STEP 2: Put the scale system into the Calibration Mode by switching the calibration switch
on the display board (Figure 10), “CALIBRATION” will flash on the display.
IMPORTANT
CALIBRATION CHECK - Qualified service personnel only should perform this
procedure. Load cells have no user serviceable components and should not be tampered
with for any reason. Re-calibration is generally not required, but should be verified
periodically to ensure accuracy. Recommendation for calibration check is at least once
every 12 months, or as individual maintenance policy requires.
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
Figure 10: Calibration Switch Location
CALIBRATION SWITCH

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 17 of 20
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)
STEP 3: Select at least two (2) known calibrated weights (traceable to NIST) adding up to
the maximum scale capacity.
NOTE: The first weight or group of weights should be half of the maximum scale capacity.
The second weight or group of weights should add up to the maximum scale capacity.
DO NOT USE barbells or uncalibrated weights.
STEP 4: Press MENU button until “3 Pt Calibration” is displayed. Press the UP arrow
button.
STEP 5: Display will read “ZERO”. Ensure that all weight has been removed from the
platform and press the “UP” arrow button.
STEP 6: Display will read “ADD HALF”. Place ten kilograms of calibrated weight, HALF
the maximum scale capacity on the scale. Allow weight to stabilize. Press UP arrow to save
change.
STEP 7: Display will read “ADD FULL”. Place twenty kilograms of calibrated weight,
FULL scale of the maximum scale capacity on the scale. Allow weight to stabilize. Press UP
arrow to save change.
STEP 8: Press ENTER to save the calibration, or WEIGH to exit without saving.
STEP 9: Switch the scale system out of Calibration Mode on the display board (Figure 10)
and replace end cap.
TROUBLESHOOTING
SYMPTOM
REASON/CORRECTIVE ACTION
Low readings
Check offset and verify calibration
Ensure the cradle is not contacting the plate under the
scale
Only half of display activates
Press the “WEIGH” button
No power
Check that batteries are making contact with each
other and the terminals of the battery holder.
Ensure AC power supply is firmly plugged in
For additional information or assistance, telephone the Service Hotline: [phone]
or e-mail: [e-mail]

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 18 of 20
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.

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 19 of 20
SInstruments, Inc., 600 Young Street, Tonawanda, NY 14150
Tel: [phone] Fax: [phone] URL: www.srscales.com
email: [email protected] Copyright 2020 SInstruments, Inc.
NOTES

Model: SR630i-KG Pediatric Scale
Operating and Service Manual
Part No.: MAN630i-KG_200915 Page 20 of 20
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.
Precision & Technology in
Perfect Balance