Cardinal Floor Hugger FHLT Series User manual

1943-M032-O1 Rev B Floor Hugger Series FHLT
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Floor Hugger
Series FHLT
Low Profile Electronic
Lift-up Top Platform Scale
Owner’s Manual
1943-M032-O1 Rev B
203 E. Daugherty, Webb City, MO 64870 USA
02/15
Ph: 417-673-4631 Fax: [phone]
Printed in USA
www.cardinalscale.com
Technical Support: Ph: 866-254-8261 [email protected]

1943-M032-O1 Rev B Floor Hugger Series FHLT
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1943-M032-O1 Rev B Floor Hugger Series FHLT
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TABLE OF CONTENTS
Installation ..............................................................................................................................… 1
Calibration Procedure ................................................................................................................ 3
Trim Adjustment ....................................................................................................…................. 4
Trouble Shooting Guide ............................................................................................................. 5
Interconnection Diagram ......................................….................................................................. 6
Raising the Weighbridge Top ...............................….................................................................. 7
Parts Identification ………………………………….….................................................................. 8
Your low profile platform scale is designed and manufactured with quality and reliability.
Optional inclined ramps may be installed for easy approach and exit of scale. Four electronic
load cells support the scale platform and are connected at a centrally located junction box
where calibration adjustments may be made. These load cells are self-checking and
environmentally sealed. Lifting eye bolts are shipped with your scale and should be
conveniently stored, along with the shipping bolts, after completion of scale installation. The
shipping bolts and lifting eye bolts will need to be reinstalled if scale is relocated in the future.
This manual provides instruction for unpacking, installing and calibration of your scale. A
Trouble Shooting Guide was written so you may isolate or correct a problem before calling a
scale technician.
COPYRIGHT
All rights reserved. Reproduction or use, without express permission, of editorial or pictorial
content, in any manner, is prohibited. No patent liability is assumed with respect to the use of
the information contained herein.
DISCLAIMER
While every precaution has been taken in the preparation of this book, the Seller assumes no
responsibility for errors or omissions. Neither is any liability assumed for damages resulting
from the use of the information contained herein. All instructions and diagrams have been
checked for accuracy and ease of application; however, success and safety in working with
tools depend to a great extent upon the individual accuracy, skill and caution. For this reason
the Seller is not able to guarantee the result of any procedure contained herein. Nor can they
assume responsibility for any damage to property or injury to persons occasioned from the
procedures. Persons engaging the procedures do so entirely at their own risk.
Serial Number_______________________
Date of Purchase ____________________
Purchased Form_____________________
___________________________________
___________________________________
RETAIN THIS INFORMATION FOR FUTURE USE
PRECAUTIONS
Before using this instrument, read this
manual and pay special attention to all
"NOTIFICATION" symbols:
IMPORTANT ELECTRICAL
WARNING

1943-M032-O1 Rev B Floor Hugger Series FHLT
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INSTALLATION
The following section outlines procedures for unpacking and installation of your scale.
IMPORTANT: Read this entire section carefully before attempting to unpack
or install this scale.
Inspect the shipping container for any signs of damage such as exterior dents and scratches.
It is the responsibility of the purchaser to file all claims with the shipping company for damages
or loss incurred during transit, unless this responsibility has been accepted by the Seller in its
proposal. Scale should remain packed until you are ready to install it, protecting it while being
stored.
Remove shipping bands and packing material. Make certain “all”packing material is removed.
Remove wooden box containing load cell cable from pallet. Place on scale platform until
further instructions are given.
BE CERTAIN scale location is level and free of debris.
Using the lifting eye bolt provided, move scale to its final location.
DO NOT push or slide scale, damage to load cells may result.
Once you have positioned the scale in its final location, anchor the ramps into position and set
the scale so that the feet are captured in the foot plates on the ramps. Make certain the weight
is evenly distributed over each of the four corner plates.

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INSTALLATION CONT.
FIGURE No. 1
If ramps are to be installed, we recommend raising the scale and positioning the ramps where
the foot capture plates are located directly beneath the feet and then gently lowering the scale.
Ensure that the feet are captured properly inside the foot plates and that the
scale platform does not come in contact with the ramp(s) as this can interfere
with weighments taken.
Remove load cell cable from wooden box, connect cable to weight indicating instrument,
following instructions provided in instrument manual.
Make certain cable is not placed near heating or cooling ducts, relay panels,
ovens or other types of electrical equipment. All cables should be routed out
of the way of normal traffic and secured to prevent accidental damage to
operator and/or instruments.
After connection has been made, power-up and zero weight indicator according to indicator
manual directions.

1943-M032-O1 Rev B Floor Hugger Series FHLT
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CALIBRATION PROCEDURE
Your scale was factory adjusted to ± .10 percent accuracy at the factory. Minor changes in
calibration due to shock and vibration encountered during shipping may necessitate
re-calibration.
The following procedures require a known test weight, make certain test
weight is accurate.
Place test weight or weights equal to 10 percent of the scales capacity on scale platform.
Record the weight displayed. If displayed weight does not fall within this ± .10 percent value of
test weight, scale may need re-calibrated.
It should be noted that in addition to the ± .10% tolerance, ±1/2 graduation is
added when connected to digital display.
Please check the following before proceeding:
1. Make certain proper installation procedures were followed.
2. Is debris near or under scale deck (such as packing material) restricting proper scale
operation?
Calibration procedures should be performed by a qualified scale technician or
someone familiar with scale calibration procedures.
3. Place test weight equal to ten percent of the scales capacity over each of the four load
cells, one at a time.
4. Record each displayed weight.
5. If difference in displayed weight exceeds ±.10 percent of the test weight, trimming
adjustments for your load cells must be performed. Refer to TRIM ADJUSTMENT
Section for further instruction.
6. If all four weight readings are within the allowable tolerance (±.10 percent of test weight),
the weight indicator should be re-calibrated in accordance with the indicator manual.

1943-M032-O1 Rev B Floor Hugger Series FHLT
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TRIM ADJUSTMENT
The purpose of adjusting trim is so the same weight reading will be displayed regardless of
where the load is placed on the scale deck. All scales are corner trimmed before leaving the
factory. In the event of re-calibration or load cell replacement, follow instructions below to re-
trim corners. It is assumed the other three load cells are already corner sealed to agree with
each other. If not, please refer to next page for further instruction.
1. Remove junction box access cover.
2. Refer to Figure No. 2 for load cell location reference.
3. Turn trim potentiometer for the load cell needing re-calibration clockwise 25 turns, the
end of the potentiometer adjustment.
4. Place a test weight on each corner, one at a time, and record the displayed weight for
each corner.
5. Place test weight on the corner with the highest reading and adjust the appropriate trim
potentiometer until the weight reading agrees with the lowest reading obtained in Step 4.
6. Repeat Step 5 until all corners have the same weight reading.
To be mounted as required by customer and local regulations. Load cell cables must be
protected from damage.
Load Cell Cable

Cell locations are
for reference only!

FIGURE No. 2
Remote
Trim Box

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TRIM ADJUSTMENT CONT.
If two or more load cells must be replaced or scale needs an overall resealing of each corner,
these procedures should be followed.
1. Turn all potentiometers clockwise 25 turns. Now turn all potentiometers
counterclockwise 1 (one) turn.
2. Place test weight of at least 10 percent of scales capacity on each corner, one at a time,
and record each displayed weight.
3. Place test weight on corner with the highest displayed weight and adjust appropriate trim
potentiometer counterclockwise until corner reading agrees with lowest weight reading.
4. Repeat Step No. 3 until all corners are equal.
5. Re-calibrate weight indicator following procedures in indicator manual.
EXAMPLE:
CORNER #
1000# TEST WEIGHT
1
2
3
4
DISPLAYED WEIGHT READING
1020
1016
1017
1021
1. Place test weight on each corner, one at a time, and record each displayed weight.
2. Place test weight on corner no. 1 and adjust no. 1 trim potentiometer to reduce displayed
weight to the lowest corner reading (No. 2 in example).
3. Repeat step 2 with corners no. 3 and 4 until all corners are in agreement.
4. Calibrate weight indicator following instructions provided in its manual.
TROUBLE SHOOTING GUIDE
If difficulty is encountered with the operation of the scale a visual check of the scale platform
should be made to make certain operation is not restricted by foreign material, such as packing
material, etc.
The following trouble shooting guide should prove useful in isolating and correcting a problem
with the scale. If problem cannot be resolved with the use of this trouble shooting guide,
contact a qualified scale technician for service.
PROBLEM
CAUSE
SOLUTION
Scale reads accurate
weight to a point, but
will not register
beyond that point.
Obstruction between floor
and bridge.
Remove obstruction.
Cannot obtain
repeatable readings.
A. Scale not level
B. Bad or improper wiring
C. Bad load cell
D. Bad trim circuit board
A. Level Scale
B. Check wiring & solder connections
C. Replace load cell
D. Replace trim circuit board

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INTERCONNECTION DIAGRAM
FIGURE No. 3