Fairbanks 3300 User Manual

Installation Manual

Reliant Series

Floor Scale

Model: 3300

© 2005 by Fairbanks Scales.

All rights reserved

50783

Issue 2 10/06

Created 03/05

Amendment Record

Reliant Series Floor Scale

Model: 3300

50783

Manufactured by Fancor

821 Locust

Kansas City, Missouri 64106

Issue 1 03/05 New Product
Issue 2 10/06 Added NTEP and CWM Cerficate of Conformance numbers

Disclaimer

Every effort has been made to provide complete and accurate information in this manual. However, although this manual may
include a specifically identified warranty notice for the product, Fancor makes no representations or warranties with respect to the
contents of this manual, and reserves the right to make changes to this manual without notice when and as improvements are
made.

10/06 2 50783 Issue 1

Table of Contents

Section 1: General Information

A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

B. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Section 2: Installation

A. General Service Policy . . . . . . . . . . . . . . . . . . . . . . . . 5

B. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

C. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

D. Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

E. Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 7

Section 3: Calibration

A. Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 8

Section 4: Accessories

A Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

B. Bolt Down Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

C. Ramps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

D. Bumper Guards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

E. Balance Junction Box . . . . . . . . . . . . . . . . . . . . . . . . .10

Section 5: Maintenance and Service

A. Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

B. Load Cell Replacement . . . . . . . . . . . . . . . . . . . . . . . 14

C. Foot Assembly Replacement . . . . . . . . . . . . . . . . . . . 15

D. Balance Junction Box/ PCB Replacement . . . . . . . . . .15

Section 6: Parts

A. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

B. Optional Accessories Parts List . . . . . . . . . . . . . . . . . .17

Appendix I: Accessories

A. Ramps and Bumper Guards . . . . . . . . . . . . . . . . . . . .19

B. Bolt Down Plates and Eybolts . . . . . . . . . . . . . . . . . . .19

C. Balance Junction Box . . . . . . . . . . . . . . . . . . . . . . . . .19

10/06 3 50783 Issue 2

Section 1: General Information

A. Introduction

The Reliant Series floor scale is a general purpose scale designed for basic weighing
applications which require the platform to be installed and relocated in a minimal amount of
time. It is available in two different models and has several different optional accessories which
may be added to the scale. These optional accessories include ramps, bumper guards, and
bolt down plates.

B. Specifications

Model: 3300
Product Number: 25690 25691
Part Number: 83701 83702
Capacity: 2500 lb 5000 lb
e MIN: 0.5 lb 1 lb
n MAX: 5000 5000
Platform size: 4’ x 4’ 4’ x 4’
Load Cell Specifications:

Capacity 1000 lb 2500 lb
Material: Mild Steel
Resistance: 1000 Ohm
Rated Output: 2 mV/V
Safe Overload: 150 %
Compensated Temp Range: -10° C to 40° C
Safe Operating Temp Range: -10° C to 40° C

NTEP CC: 05-032
CWM CC: AM-5579

Note:

The Reliant series floor scale is designed for general purpose applications and will not
accomodate concentrated loading such as forklift traffic. Severe damage to the scale will occur
and will void any warranties, written or implied.

10/06 4 50783 Issue 2

Section 2: Installation

A. General Service Policy

Prior to installation, it must be verified that the equipment will satisfy the customer's
requirements as supplied, and as described in this manual. If the equipment cannot satisfy the
application and the application cannot be modified to meet the design parameters of the
equipment, the installation should not be attempted.

It is the customer/operator's responsibility to ensure the equipment provided by Fairbanks is
operated within the parameters of the equipment's specifications and protected from accidental
or malicious damage. Other than the procedures authorized in the Operating manual, no
service, repair, or adjustments may be performed by unauthorized / untrained service
personnel. Any unauthorized repairs will void any verbal, implied, or written warranties.

B.

Overview

1. These instructions apply to the floor scale and its specific installation
procedures. The procedures for instruments, printers and other peripherals are
given in manuals specifically provided for those units.

2. All mechanical calibrations and or adjustments required to make this equipment
perform to accuracy and operational specifications are considered to be part of
the installation, and are included in the installation charge. Only those charges
which are incurred as a result of the equipment's inability to be adjusted or
calibrated to performance specifications may be charged to warranty.

3. Absolutely no physical or electrical modifications are to be made to this
equipment. Electrical connections other than those specified may not be
performed, and physical alterations (holes, etc.) are not allowed.

4. Before the installation is considered complete, the equipment is to be calibrated
to meet or exceed any applicable weights and measures requirements, if
applicable. The installing technician is responsible to make certain customer
personnel are fully trained and familiar with the capabilities and limitations of the
equipment. Be prepared to recommend the arrangement of components which
will provide the most efficient layout, utilizing the equipment to the best possible
advantage. The warranty policy must be explained and reviewed with the
customer.

10/06 5 50783 Issue 2

C.

Unpacking

1. Check that all components are on hand, and agree with the customer's order.

2. Remove all components from their packing material, checking to make certain

that all parts are accounted for and no parts are damaged. Advise the shipper
immediately if damage has occurred. Order any parts necessary to replace
those which have been damaged. Keep the shipping container and packing
material for future use. Check the packing list.

3. Collect all necessary installation manuals.

4. Perform an inspection, making certain all hardware and electrical connections are

secure.

D. Safety

As is the case with any material handling equipment, certain safety precautions should be
observed during operation:

1. Never load the platform beyond its rated capacity. Refer to the rating on the serial
number plate of the platform.

2. Ensure that any structure which supports the platform is capable of withstanding
the weight of the platform plus its rated capacity load.

3. Do not load the platform if there is any evidence of damage to the platform or
supporting structure.

4. Use safety chains or other suitable restraining devices if there is any possibility of
the load shifting, falling, or rolling from its position on the platform.

10/06 6 50783 Issue 2

E. Installation Procedure

1. Select a location which is level and will fully support the weight of the platform plus
a full capacity load.

2. Remove the top of the crate and all packing/banding material.

3. Screw the two (2) eyebolts into the threaded adapters in the platform top. Use a

forklift or other lifting means along with chains, cables, or nylon straps to remove
the scale from the crate bottom.

~Caution~

Failure to use the proper lifting tools may result in personal injury.

4. Set the scale so the interface cable exits in a direction where it can be protected.
If possible, use a cable protector to reduce trip hazards and protect the interface
cable from being damaged.

5. Wire the scale interface cable to the proper type indicator using the following
platform wiring/ color code:

Cable W

ire Color Function Analog Instrument

Black (-) Excitation (-) Excitation
Green (+) Excitation (+) Excitation
Yellow Shield Shield
White (+) Signal (+) Signal
Red (-) Signal (-) Signal

10/06 7 50783 Issue 2

Section 3: Calibration

A. Calibration Procedure

1. Adjust the analog indicator to the platform. First, ensure all corners are within one
(1) division of each other at 25% of rated capacity. Follow the appropriate
indicator service manual to calibrate the instrumentation.

a. Perform a coarse platform calibration which will be close to the actual

weight.

b. Identify the platform’s corner numbers.

c. Place a concentrated weight (25% of platform capacity) on corner 1, note

the displayed weight, move the weight to corner 2, note the displayed
weight, move and note the displayed reading on each of the remaining
corners.

d. If corners require adjustment:

1. Refer to the Maintenance and Service Section A Errors
chart.

e. Final Calibration

1. Remove all weights.

2. Zero the indicator.

3. Perform a final calibration with test weights.

4. Follow the appropriate indicator service manual’s calibration

procedures to ensure a proper calibration.

10/06 8 50783 Issue 2

Section 4: Accessories

A. Introduction

The Reliant series floor scales have several accessory options available. These accessories

are Bolt-down plates, Ramps, and Bumper-Guards.

B. Bolt-Down Plates

Bolt down plates are used to keep the scale from sliding or moving when loads are applied. The

plates are bolted via anchors at each of the scale’s feet.

1. Installation
a. Place the platform in position.

b. Place the bolt-down plate under the foot, plate edge extending out from

under the scale.

c. Drill the two (2) holes using a hammer drill. Insert anchors with the nut

and washer already ON. Tap the anchor into the hole, then tighten the
nuts securely. Repeat this process for each plate used.

Note:

If ramps are NOT installed and bolt-down plates are needed, a set of four bolt-down plates will
be required.

C. Ramps

Each mild steel ramp accessory comes with two integral bolt down plates and four anchors.

1. Installation

a. Place the ramp in position, then lift and set the platform feet into the bolt-

down plate holes.

b. Drill the two (2) holes using a hammer drill. Insert the anchors with the

nut and washer already ON. Tap the anchor into the hole then tighten the
nuts securely.

• If two ramps are installed, NO other bolt-down plates are needed.

• If one ramp is installed, a set of two bolt-down plates is needed

• Only two ramps total may be installed on opposite sides of a
scale platform.

10/06 9 50783 Issue 2

D.

4

4

3

3

2

2

1

1

+ SIG

- SIG

- SEN

- EXC

+ SEN

- EXC

SHLD

+E -E SH -S +S

+E -E SH -S +S

+E -E SH -S +S +E -E SH -S +S

96141

Bumper Guards

Bumper Guards are designed to help protect the platform from abuse resulting from ensuing
forklift traffic. The guards are slightly higher than the scale and will help deflect the forks.

1. Place the bumper guard so it will protect the platform from nonscale traffic, but
will not touch or interfere with the platform’s movement.

2. Drill the holes using a hammer drill. Insert anchors with the nut and washer
already ON. Tap the anchor into the hole, then tighten the nuts securely.

E. Balance Junction Box

1. Installation
a. Remove the scale access cover plate.

b. Check that all load cells have wire markers on the cable ends. If not,

identify load cells with wire markers or other means, then disconnect the
load cell wires and the main interface cable wires.

c. Dress all wires in order to be inserted into terminal blocks.

d. Remove balance junction box cover and loosen all gland fittings.

e. Insert the cables into the gland fittings and connect the cables to the

appropriate terminal block. The load cell cable for load cell number one
(1) will connect to the terminal block designated one (1). This process will
continue for all four (4) load cell cables. The main interface cable will
connect to the terminal block opposite the load cell terminals.

f. Connect the load cell cable as follows:

10/06 10 50783 Issue 2

Cable W

ire Color Function

Black (-) Excitation - E
Green (+) Excitation + E
Yellow Shield SH
White (+) Signal + S
Red (-) Signal - S

g. Connect the main interface cable as follows:

Balance Junction Box

Cable W

ire Color Function Balance Junction Box

Black (-) Excitation - EXC
Green (+) Excitation + EXC
Yellow Shield SHLD
White (+) Signal + SIG
Red (-) Signal - SIG

* (-) Sense - SEN
* (+) Sense + SEN

* = Used only when main interface cables exceed twenty five (25) feet.

h. Tighten all gland bushing nuts

i. Calibrate as necessary. See Platform Cornering Adjustments.

j. Replace the box cover and tighten all screws. Replace the platform

access cover .

2. Platform Cornering Adjustments

a. Adjust the analog indicator to the platform. First, ensure all corners are

within one (1) division of each other at 25% of rated capacity. Follow the
appropriate indicator service manual for indicator calibration.

1.) Perform a course platform calibration close to the actual weight.

2.) Identify the platform corner numbers.

10/06 11 50783 Issue 1

3.) Place a concentrated weight (25% of platform capacity) on corner 1,

4

4

3

3

2

2

1

1

+ SIG

- SIG

- SEN

- EXC

+ SEN

- EXC

SHLD

+E -E SH -S +S

+E -E SH -S +S

+E -E SH -S +S +E -E SH -S +S

96141

move it to corner 2, corner 3 and corner 4, noting the displayed
reading on each corner.

4.) If corners require adjustment:

a.) Place the concentrated weight on the corner displaying the

lowest weight and use the appropriate potentiometer to
change the displayed weight to read the same as the
highest reading by turning the potentiometer clockwise
(CW). Repeat this procedure while rechecking all corners
until there are no errors. Perform a zero reference check
with a unloaded platform, then repeat the corner test to
ensure all readings are the same before proceeding.

Note:

As you move the weight(s) from corner to corner, do NOT zero the scale. Remember, at this
time you are only adjusting the corners to be the same, not a performing a correct calibration.

Note:

The balance junction box assembly has four (4) extended range, multi-turn potentiometers,
one for each load cell. If you have difficulty cornering the platform, turn all potentiometers to
the fully counter clockwise (CCW) position until a clicking is heard when turned. With the
weight on the lowest reading corner, turn the corresponding potentiometer clockwise (CW) to
read the same as the highest reading corner. Repeat this procedure for each corner until the
platform is properly calibrated.

10/06 12 50783 Issue 1

5.) When the corners are the same in reference to each other:

a.) Remove all weights

b.) Zero the indicator

c.) Perform a final calibration with test weights

d.) Follow the appropriate indicator service manual for

indicator calibration.

10/06 13 50783 Issue 1

Section 5: Maintenance and Service

A. Errors

Symptom Cause

Corner Errors Debris under scale. Remove debris.

Load cell failure. Replace load cell.

Broken foot assembly. Replace foot.

Platform not level. Level platform.

Load cell tolerance Adjust balance
change. junction box per

Unstable indication Cables damaged. Repair cables.

Load cell failure Replace load cell.

Solution

Section 4, if
equipped.

Indicator failure Repair indicator

B. Load Cell Replacement

1. Remove power to the indicator.

2. Remove the cover plate. Identify the load cells with wire markers or other

means and disconnect the failed load cell cable at the splice connections.

3. Lift the platform end with a forklift or heavy pry bar using wood blocks for safety.

4. Remove the load cell mounting bolts (use a ¾" socket), then the cell, pulling the

load cell cable through the scale while leaving a pull string/wire in the scale.

5. Remove the foot assembly from the old load cell and install on the new load
cell. Use anti-seize on the bolt threads.

10/06 14 50783 Issue 2

6. Disconnect the pull string/wire from the old load cell's cable and attach to the
new load cell's cable end. Pull the cable of the new load cell through to the
splice connection. Mount the load cell using anti-seize on the mounting bolts
and torque to 90 ft/lbs.

7. Lower the scale and remove the safety blocks.

8. Ensure that the weight is shared evenly by all four (4) feet. Using crimp

connectors, connect the load cell wires to the interface cable at the splice
connection. Test and calibrate the scale. Replace the cover plate.

9. Recalibrate as necessary.

C. Foot Assembly Replacement

1. Lift the platform end with a forklift or heavy pry bar using wood blocks for safety.

2. Remove the bolt which goes through the load cell and the post on the foot

assembly.

3. Pull the foot assembly out of the load cell.

4. Ensure the “O” ring is on the post of the new foot assembly. The “O” ring

should be lubricated before the foot assembly is replaced.

5. Slide the post of the foot assembly into the hole in the load cell. Align the
position of the foot so that the holes of the foot align with the hole in the load
cell.

6. Insert the bolt and tighten.

7. Lower the platform to the floor and adjust the foot to level the platform.

D. Balance Junction Box/PCB Replacement

1. Remove power to the indicator

2. Open the platform access cover, then the balance junction box cover

10/06 15 50783 Issue 1

Note:

3. Loosen all gland bushing nuts

4. Check that all load cells have wire markers on the cable ends. If not, identify

load cells with wire markers or other means, then disconnect the load cell
wires from the terminal blocks. Disconnect the main interface cable wires.

5. Remove the balance junction box/ PCB, then install the new balance junction
box/ PCB.

Leave the box cover OFF until all calibration adjustments are completed.

6. Reconnect all load cell and main interface cable wires to the new balance
junction box/ PCB.

7. Tighten all gland bushing nuts

8. Recalibrate as necessary.

9. Replace the box cover and tighten all screws. Replace the platform access

cover .

10/06 16 50783 Issue 1

Section 6: Parts

A. Platform Parts List

Item Part# Description Models

1 83703 Platform Weldment ALL
2* 83634 Load Cell 1K
2* 83635 Load Cell 2.5K
3 54502 Screw, Cap ½-20 x 1.75 ALL
4 63899 Foot Assembly ALL
5 66754 Shim ALL
6 24988 Crimp Connector ALL
7 11330 Stopper ALL

9 83709 Cover Plate Assembly ALL
10 54054 Screw, Cap ¼-20 x 0.5 ALL
12 12838 Cable Assembly 30’ ALL

13 17533 Connector, Liquid Tight ALL

14 11103 SS Hex Nut 10-24 ALL

16 N/A Nameplate ALL

B. Optional Accessories Parts List

N/S 96141 Balance Assy pcb only ALL

N/S 63599 Balance junction box assy ALL

N/S 63753 Ramp (4') ALL

N/S 72194 Bumper Guard (4’) ALL
N/S 70895 Eyebolts (Set of 2) ALL
N/S 63776 Bolt down plates (Set of 4) ALL
N/S 63778 Bolt down plates (Set of 2) ALL

10/06 17 50783 Issue 2

CORNER NO. 2

7

CORNER NO. 1

50783-1

PULL LOAD CELL CABLES

TO REMOVE SLACK, SLIDE STOPPER

OVER CABLE AND INSERT STOPPER

INTO HOLE FIRMLY- TYP 4 CORNERS

DETAIL A

CORNER NO. 3

CUT SLIT

3.

TO ASSEMBLING AND TORQUE SCREWS TO 90 FT-LBS.

USE CRIMP STYLE WIRE NUTS TO MAKE ALL CONNECTIONS

PRIOR TO INSTALLING ON LOAD CELL CABLES.

2. APPLY ANTI-SEIZE SEALING COMPOUND TO THE SCREWS, ITEM 3, PRIOR

1. MODIFY STOPPERS, ITEM 7, BY CUTTING A SLIT AS SHOWN IN DETAIL A,

NOTES:

1

13

14

W1

12

109

3

CORNER NO. 4

2

4

16

6

5

CLASS
SERIAL

MODEL

Fairbanks Scales

H000323CB

n

C-O-C

RATING

Made in U.S.A.

TEMP
MAX

CAP

e

MIN
CAN

10/06 18 50783 Issue 2

Appendix I: Accessories

A. Ramps and Bumper Guards

Bumper

Size Cap Ramp Guard

4' x 4' 2.5K 63753(4') 72194 (4')
4' x 4' 5K 63753(4') 72194 (4')

B. Bolt-Down Plates and Eyebolts

Size Cap Bolt-Down Plates Eyebolts

ALL ALL
ALL ALL

C. Balance Junction Box

Size Cap Product Number Description

ALL ALL 83941 *Balance junction box assy

* = Factory Installed upon initial product order only.

63776 (Set of 4) 70895 (2)
63778 (Set of 2)

10/06 19 50783 Issue 2