Hardy Floor Scales User Manual
HARDY
FLOOR SCALES
OPERATION AND INSTALLATION
MANUAL
Corporate Headquarters
9440 Carroll Park Drive
San Diego, CA 92121
Phone: (858) 278-2900
FAX: (858) 278-6700
Email: hardyinfo@hardysolutions.com
Web-Site: http://www.hardysolutions.com
Hardy Process Solutions Doc. Number: 0596-0335-01 Rev A
Copyright June 2014 Hardy Process Solutions.All Rights Reserved. Printed in the U.S.A.
Local Field Service
Hardy has over 200 field technicians in the U.S., and more positioned throughout the world to assist you in your support needs. We also have factory engineers who will travel to your facility anywhere in the world to help you solve
challenging applications. We're ready to support you with:
• Installation and start-up
• Routine maintenance and certification
• Plant audits and performance measurement
• Emergency troubleshooting and repair
To request Emergency Service and Troubleshooting, Start-up, Installation,
Calibration, Verification or to discuss a Maintenance Agreement please call
800-821-5831 or Emergency Service after hours (Standard Hours 6:30 AM to
5:30 PM Pacific Standard Time) and weekends.
Outside the U.S
Hardy Process Solutions has built a network of support throughout the globe. For
specific field service options available in your area please contact your local sales
agent or our U.S. factory at +1 858-292-2710.
CAUTION:
UNPACK WITH CARE
WHEN UNPACKING, DO NOT DISCARD THE PACKING CASE OR ANY
PACKING MATERIAL, UNTIL THE CONTENTS OF THE PACKING CASE
ARE INSPECTED AND CAREFULLY COMPARED WITH THE SHIPPING
DOCUMENTS.
IF ANYTHING IS UNSATISFACTORY, PLEASE NOTIFY HARDY PROCESS SOLUTIONS IMMEDIATELY BY CALLING, FAXING OR E-MAILING
US AT:
Hardy Service Center
Hardy Process Solutions
9440 Carroll Park Drive
San Diego, California 92121
Phone: (800) 821-5831
(858) 278-2900
FAX:(858) 278-6700
E-mail: hardysupport@hardysolutions.com
Web Address: www.hardysolutions.com
TO RETURN DEFECTIVE OR DAMAGED PRODUCT(S) CALL HARDY
TECHNICAL SUPPORT FOR A HARDY SERVICE TICKET NUMBER
(HST#). YOUR COMPANY NAME, ADDRESS, TELEPHONE NUMBER,
SERIAL NUMBER OF THE UNIT AND A BRIEF DESCRIPTION OF THE
PROBLEM SHOULD BE READY WHEN CALLING. FOR ALL NON-WARRANTY REPAIRS A PURCHASE ORDER OR CREDIT CARD IS ALSO
REQUIRED.
IN CASE OF DAMAGE DUE TO SHIPPING, NOTIFY THE DELIVERING
CARRIER IMMEDIATELY FOR AN INSPECTION.
Table of Contents
Table of Contents
HARDY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
FLOOR SCALES - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
OPERATION AND INSTALLATION- - - - - - - - - - - - - - - - - - 1
MANUAL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Outside the U.S- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Table of Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
Table of Illustrations - - - - - - - - - - - - - - - - - - - - - - - - - - I
INTRODUCTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
SPECIFICATIONS- - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Platform Material - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Platform Height - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Rated Output- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Capacities - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Excitation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Load Points - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Total Error- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Maximum Overload - - - - - - - - - - - - - - - - - - - - - - - - - 2
End Loading - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Temperature Range- - - - - - - - - - - - - - - - - - - - - - - - - - 2
Temperature Effect- - - - - - - - - - - - - - - - - - - - - - - - - - 2
Cable Length- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Materials of Construction- - - - - - - - - - - - - - - - - - - - - - - 2
Steel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Paint - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Foot Elastomer - - - - - - - - - - - - - - - - - - - - - - - - - 3
Grade Level - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
Anchor Bolt Holds - - - - - - - - - - - - - - - - - - - - - - - - 3
Approvals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
NEMA Rating - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
Test Criteria - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
UNPACKING - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
i
Hardy Floor Scales
COMPONENT DESCRIPTIONS - - - - - - - - - - - - - - - - - - - - - 4
SITE PREPARATION - - - - - - - - - - - - - - - - - - - - - - - - - - 6
Precautions- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
FLOOR SCALE INSTALLATION - - - - - - - - - - - - - - - - - - - - 7
CALIBRATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11
Pre-Calibration Procedures - - - - - - - - - - - - - - - - - - - - - - 11
C2® Second Generation Calibration - - - - - - - - - - - - - - - - - - 12
Test Weight Calibration (Hard Cal) - - - - - - - - - - - - - - - - - - 12
Requirements: - - - - - - - - - - - - - - - - - - - - - - - - - - 12
Material Substitution:- - - - - - - - - - - - - - - - - - - - - - - 12
SCALE VERIFICATION - - - - - - - - - - - - - - - - - - - - - - - - - 12
MODEL CODE BREAKDOWN - - - - - - - - - - - - - - - - - - - - - 14
Carbon Steel Deck, Painted - - - - - - - - - - - - - - - - - - - - - - 14
Stainless Steel Deck (304 SS) - - - - - - - - - - - - - - - - - - - - - 15
REMOVING SUMMING BOX COVER- - - - - - - - - - - - - - - - - - 16
Installing the Leveling Feet - - - - - - - - - - - - - - - - - - - - - - 18
INSTALLING A LOAD SENSOR- - - - - - - - - - - - - - - - - - - - - 21
OPTIONAL PIT FRAMES - - - - - - - - - - - - - - - - - - - - - - - - 25
About Pit Frames - - - - - - - - - - - - - - - - - - - - - - - - - - - 25
OPTIONAL PORTABILITY KIT3 - - - - - - - - - - - - - - - - - - - - 0
OPTIONAL ACCESS RAMPS - - - - - - - - - - - - - - - - - - - - - - 30
Access Ramp Installation - - - - - - - - - - - - - - - - - - - - - - - 30
OPTIONAL FOOT RETAINER - - - - - - - - - - - - - - - - - - - - - - 32
Foot Retainer Plates Installation - - - - - - - - - - - - - - - - - - - - 33
OPTIONAL BUMPER GUARDS - - - - - - - - - - - - - - - - - - - - - 34
Installing Bumper Guards - - - - - - - - - - - - - - - - - - - - - - - - - 34
Optional Indicator Column - - - - - - - - - - - - - - - - - - - - - - - - 36
TROUBLESHOOTING- - - - - - - - - - - - - - - - - - - - - - - - - - 36
ii
Table of Contents
Problem: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
Cause #1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - :36
Cause #2: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
Cause #3: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
Remedies: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
Problem:- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Cause #1: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Remedy #1 - - - - - - - - - - - - - - - - - - - - - - - - - - - :3 7
Cause #2: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Remedy #2: - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Problem:- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Cause #1: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Remedy #1: - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Cause#2: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Remedy #2: - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Cause #3: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
Remedy #3: - - - - - - - - - - - - - - - - - - - - - - - - - - - 38
Cause #4: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 38
Remedy #4: - - - - - - - - - - - - - - - - - - - - - - - - - - - 38
INSTRUMENTATION INTERFACE CABLE COLOR CODES - - - - - - 38
iii
Hardy Floor Scales
iv
Table of Illustrations
Table of Illustrations
HARDY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
FLOOR SCALES - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
OPERATION AND INSTALLATION- - - - - - - - - - - - - - - - - - 1
MANUAL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
TABLE OF CONTENTS - - - - - - - - - - - - - - - - - - - - - - - - I
TABLE OF ILLUSTRATIONS - - - - - - - - - - - - - - - - - - - - - I
INSTALLING THE CLOSED EYE BOLTS INTO THE TOP PLATE - - - 4
SUMMING JUNCTION CARD- - - - - - - - - - - - - - - - - - - - - - 5
DRIVING HEAVY EQUIPMENT ON AND OFF THE SCALE - - - - - - 7
MAXIMUM HEIGHT - - - - - - - - - - - - - - - - - - - - - - - - - - 8
SPIRIT LEVEL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8
CHECKING PLATFORM LEVEL/SIDE TO SIDE - - - - - - - - - - - - 9
CHECKING PLATFORM LEVEL/CORNER TO CORNER - - - - - - - - 9
CHECKING PLATFORM LEVEL/DIAGONALLY - - - - - - - - - - - - 10
ADJUSTING THE FEET FOR LEVEL - - - - - - - - - - - - - - - - - - 10
SCALE VERIFICATION/POSITION #3 - - - - - - - - - - - - - - - - - 13
REMOVING THE SUMMING BOX COVER - - - - - - - - - - - - - - - 16
REMOVING THE SUMMING BOX LID - - - - - - - - - - - - - - - - - 17
REMOVING THE SUMMING BOX LID - - - - - - - - - - - - - - - - - 18
INSERTING THE LEVELING FOOT INTO THE LOAD SENSOR - - - - 19
INSIDE VIEW - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20
OUTSIDE VIEW- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20
ALL FOUR FEET INSTALLED - - - - - - - - - - - - - - - - - - - - - 21
SUMMING CARD - - - - - - - - - - - - - - - - - - - - - - - - - - - - 21
CABLE GLAND - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 23
REMOVING LOAD SENSOR BOLTS AND FEET - - - - - - - - - - - - 24
FOUNDATION FOR THE PIT FRAME- - - - - - - - - - - - - - - - - - 26
PIT FRAME DIMENSIONS - - - - - - - - - - - - - - - - - - - - - - - 27
DRAIN INSTALLATION DIMENSIONS- - - - - - - - - - - - - - - - - 28
EXCAVATED PIT AND SUPPORT FOR THE PIT FRAME - - - - - - - 29
RAMP WITH RETAINER PLATES - - - - - - - - - - - - - - - - - - - 31
INSTALLING ANCHORS FOR RAMP - - - - - - - - - - - - - - - - - - 31
FOOT RETAINER PLATES INSTALLATION - - - - - - - - - - - - - - 33
BUMPER GUARD/GAP REQUIREMENT - - - - - - - - - - - - - - - - 35
BUMPER GUARD/INSTALLATION- - - - - - - - - - - - - - - - - - - 35
I
Hardy Floor Scales
II
Hardy Floor Scales
INTRODUCTION Hardy Floor Scales are designed for applications that
require a low profile weighing surface with high commercial accuracy and reliability. The Hardy Floor
Scales can be configured with a complete range of
accessories. Rugged Hardy Floor Scales are rated for
250,000 load cycles under normal loading conditions.* They can be sized or configured to fit any floor
scale application.
*Contact Hardy for more information
The typical platform height is 3.375 inches (8.6 cm).
Each corner can be adjusted an additional .275”
(7mm) to compensate for a non-level floor or pit
mounting surface.
Hardy Floor Scales do not have bearings, levels or
moving parts that can be damaged or wear out. The
active elements of the floor scales are four precision
Hardy load sensors, mounted in all four corners of the
scale platform. The unique Blind Hole Load Introduction technology allows the foot to move to compensate for uneven floors. This ensures that the load
forces are always applied to the load sensor at precisely the same point regardless of where the load is
placed on the scale. This ensures you will get accurate
and repeatable weighments.
Each platform load sensor is initially certified for use
®
in a C2
Second Generation Calibration system.
SPECIFICATIONS
Platform Material 0.25 inch painted carbon steel or stainless steel.
Platform Height 3.375 inches (8.6 cm) deck height adjustable
0.275” (7mm)
Rated Output 2.0mV/V ±0.1%
Capacities A vailable in eight sizes from 30 x 30 inch to 6 x 8 feet
in 1, 2.5, 5, and 10 thousand pound capacities
Excitation Recommended 5 Volts DC
• Maximum 5 Volts DC
1
Hardy Floor Scales
WARNING FOR SCALES FITTED WITH AN INTE-
GRATED TECHNICIAN SUMMING CARD, DO
NOT EXCEED 5 VDC EXCITATION. DOING
SO MAY CAUSE PROPERTY DAMAGE. DO
NOT USE WITH ANY INSTRUMENT WITH AN
EXCITATION VOLTAGE ABOVE 5 VDC.
Load Points HARDY ADVANTAGE® Load Sensors
• Factory Matched
• Stainless Steel
• True Hermetic Seal
• No Cornering
Total Error 0.03% of FS Output
Maximum
Overload
End Loading 100% of the Rated Scale Capacity
Temperature
Range
Temperature
Effect
Cable Length 20 feet C2 Cable (6.09 6 meters)
NOTE: To purchase additional C2 Cable, contact our local
Materials of
Construction
Steel • Carbon Steel: Type A36 carbon plate steel (slip
100% of the Rated Scale Capacity
• Operating -40º to +80º Degrees C (-40º to
+176º F)
• Ambient -10 to +40 Degrees C ( +14º to 10 4º
Degrees F)
• On Output - 0.0011% of load/Deg. C
• On Zero - 0.0011% of FSO/Deg C
Hardy Process Solutions Representative or Hardy
Service Center.
resistance - tread or smooth surface)
• Stainless Steel: Type 304 plate steel (slip resistance - tread or smooth surface)
Paint Two-part UV resistant Polyurethane - 2 to 4 mil
top coat - Carbon Steel only.
Note: Stainless Steel scales are not painted)
2
Hardy Floor Scales
Foot Elastomer • Natural Rubber (Standard)
Grade Level In operation, the scale must be firmly and adequately
supported at all four corners to accommodate the
maximum load in your application. The scale must be
installed to within 3º of level.
Accessories Ramps, Pit Frames, Bumper Guards, Lift Decks, Lift-
ing Eye Bolts, Bolt Down Plates
Anchor Bolt
Holds
Approvals • NTEP Class III Number: 04-087
NEMA Rating Summing Junction Box Enclosure - NEMA 4 Stain-
Test Criteria Must exclude at least 65 GPM of water from 1” inch
UNPACKING Hardy Floor Scales are shipped fully assembled and
WARNING DO NOT USE HOOKS OR UNCLOSED EYE-
1/2 inch bolts - 9/16” (.5625”) hole, 3.75 inches deep
5/8 inch bolts - 5/8” (.6250”) hole, 4.0 inches deep
less Steel
nozzle delivered from a distance not less than 10 ft for
5 minutes.
wired. Inspect the container for any signs of damage
that might occur during shipment. Since almost all of
the Floor Scales are shipped F.O.B. factory , such damage is normally the responsibility of the carrier and
should be reported to them.
Step 1. Remove the banding straps and any ship-
ping restraints.
BOLTS OR ATTEMPT TO LIFT THE SCALE
MANUALLY. FAILUR E TO USE THE PROPER
LIFTING TOOLS OR LIFTING METHODS
CAN CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.
Step 2. Screw 2 closed eye bolts into the threaded
holes on the top plate of the scale. (See
Fig. 1)
3
Hardy Floor Scales
for Lifting the
Platform Scale
• Mild Steel - 1/2 - 13 x 1.5” (Hardy Model
Number HIFSEB-PS)
Step 3. Attach a chain, cable or nylon strap to the
eyebolts.
Step 4. Use a forklift or crane with rated lifting
capacity that is equal to or greater than the
total weight of the platform scale to lift the
scale high enough to remove from the
crate bottom. See Tables 2 & 3 for shipping weights.
Step 5. Be sure to use all safety precautions when
lifting the platform so that it does not fall
on equipment or personnel. It is highly
recommended that blocks be placed under
the platform before working near the platform scale.
Closed Eye Bolts
COMPONENT
DESCRIPTIONS
4
FIG. 1 INSTALLING THE CLOSED EYE-
BOLTS INTO THE TOP PLATE
1. Steel Plate Platform - The platform material is
either painted carbon steel or 304 stainless steel.
The carbon steel platform cover is made from a
single piece of 1/4" A36 carbon steel floor plate
(skid resistant) or smooth steel plate. The steel
platforms are primed and coated with a tough
weather resistant paint (See Paint Specifications).
The 304 stainless steel platform is made from a
single piece of 1/4" diamond tread (Conforms to
Hardy Floor Scales
ASTM A793-85) floor plate (skid resistant) or
smooth stainless steel plate with a bead blast finish.
2. Summing Junction Card Assembly - Accessed
by unfastening the face plate on the center side of
the platform. (See Fig.2) The summing junction
card routes the excitation voltage to each of the
four load sensors and sums the weight signal
back from them. The C2
®
second generation
electronic calibration is included with your scale.
FIG. 2 SUMMING JUNCTION CARD
3. Load Sensors - The Hardy series scales use four
(4) steel Advantage
®
load sensors with hermetic
seals. The output of each sensor is 2mV/V with 5
Volts DC excitation. For more specifications see
the electrical specification section of this manual.
4. INTEGRATED TECHNICIAN™ (Option) -
(If IT summing card is installed) A built-in system diagnostics utility, continuously monitors the
weighing system for possible malfunctions. This
capability also allows the operator to rapidly
troubleshoot a weighing system from the controller or indicator.
5. Leveling Feet - Each Hardy series scale comes
with four (4) 304 stainless steel adjustable leveling feet. The leveling feet are adjustable to a
maximum of 7mm (.275"). The leveling feet are
attached to each of the load sensors.
5
Hardy Floor Scales
SITE PREPARATION • All mounting surfaces for the floor scale
should be level to within 3º, corner to corner,
end to end. Keep in mind that the adjustable
leveling feet have a maximum adjustment of
7mm (.275”).
• Before welding anything on the floor scale,
contact Hardy Process Solutions Service
Center for instructions and precautions.
• Proper drainage must be provi ded t o pr event
the load sensors from standing in water.
Precautions • Do not do any electric welding on or near the
platform scale.
• Do not drop items to be weighed on the
scale. Set them carefully on the platform
scale.
• Do not set items on the platform scale that
weigh more than the capacity of the scale.
• Do not store or operate the scale in environments out of the specified temperature range.
• Do not store other equipment on the scale
even temporarily when it is not used or in
storage.
• Do not allow debris to accumulate on,
around or under the scale.
• Do not set the scale in water or allow water
to accumulate around the scale. Always provide proper drainage.
• Do not let moisture get on or into any of the
electrical interconnections.
• Do not allow static or other electrical discharges go through the scale.
• Do not leave the screws for the summing
junction box cover plate loose so that the
junction box is not sealed.
• Do not drop the scale when moving or
installing.
• When driving heavy equipment on and off
the scale for weighing purposes, make sure
that you drive onto and off of the platform in
the direction indicated in Figure 3. Also See
Access Ramp Installation Section.
6
Hardy Floor Scales
Load and unload
heavy equipment
in this direction only!
FIG. 3 DIRECTION WHEN DRIVING HEAVY
EQUIPMENT ON AND OFF THE SCALE
FLOOR SCALE
INSTALLATION
Step 1. Place the platform scale on the operating
location. Make sure that the platform
height is within 3 to 3.275" as measured
from the top of the cover plate to the top of
the floor surface. (See Fig. 4)
NOTE: With the scale in place, the clearance ar ound the edge
of the platform and pit coping should be 1/4” to 3/8”.
3.275” (83.1mm)
FIG. 4 MAXIMUM HEIGHT
7
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