Measurement Systems International, Inc.

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Measurement SystemsInternational, Inc.
Integrated Load Sensor Training
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Table of Contents

• 3. Basic Load Pin Overview and Specs
• Load Pin Applications
• Load Pin Application Questionnaire
• Load Pin/Sensor System Diagram
• Load Pin Installation Guidelines
• Load Link Specs and Applications
• Load Link Installation Guidelines
• Wire Rope Clamp-On Sensor Specs and Applications
• Sensor Cable Interface Guidelines
• MSI-3550 Cable Interface
• MSI-3550/ Scoreboard Interface
• MSI-3650 Cable Interface

• 14. MSI-3650/ Scoreboard Interface
• MSI-9000 Cable Interface
• MSI-9000/ Scoreboard Interface
• General Calibration Guidelines
• Calibration Setup
• MSI-3550 Calibration Instructions
• MSI-3550 Cal Instructions (contd)
• MSI-3650/3750 Cal Instructions
• MSI-9000 Cal Instructions
• MSI-9000/CVM Cal Instructions

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Load pin training

• Overview, Specs, Applications, System Diagram
  Installation Guidelines

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Basic Load Pin Overview and Specs

• Standard Specifications
• Overload
• 200 without zero shift
• 500 without failure (minimum)
• Bridge
• Full bridge 350 Ohm (nominal)
• Excitation
• 12 V AC or DC (Maximum)
• Output Signal
• 1 - 2-mv/V (Nominal)
• Operating Temp Range
• -40 to 150 F
• Material
• -- 17-4 Stainless Steel
• Accuracy
• 1-5 of FS depending on System Parameters
• Electrical Connection
• 6-Pin receptacle or built-in cable

• Designed and manufactured specific to each
  integrated solution, the MSI load pin is strictly
  industrial grade.
• Each load pin design is precision machined from
  17-4 stainless steel for safety, strength and
  corrosion resistance. Each strain gage location
  is precisely calculated and correctly placed in
  the optimum concentrated stress area applicable
  to each installation.
• MSI load pin designs apply only internally
  mounted strain gages for complete protection from
  the outside environment. To ensure the highest
  level of accuracy, performance and quality, each
  load pin is also internally balanced and
  temperature compensated.
• The MSI load pin is a key system component toward
  providing the highest quality integrated overhead
  weighing solutions. Each pin is specifically
  designed to replace existing sheave or shackle
  pins and pins located in a Wire Rope dead-end.
• To complete the integrated solution, MSI provides
  a comprehensive product line of instrumentation
  for output signal conditioning, load indicating
  and wireless transmission of data for integration
  with existing plant process control equipment.

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Load Pin Applications

• Applications
• Overload Monitoring
• Harsh Environment
• Slack Line Monitoring
• Caught Load Monitoring
• Low or No Headroom Applications
• 1 - 5 Accuracy weighing system

• Industries
• Manufacturing
• Foundry/Metals
• Shipping/Container
• Energy
• Crane/ Hoist

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Applications (in Pictures)
Container Crane Load Monitoring System
Integrated Coil Weighing System
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Applications (in Pictures)
Integrated Spreader Bar
Basic Integrated Sheave System
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Applications (in Pictures)
Wire Tension Monitoring System
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Load Pin Application Questionnaire
When requesting quote for load pin system, please
complete MSIs Load Pin Application
Questionnaire. If you require any assistance,
please contact your MSI Sales Representative.
Pin Dimensions
Connector Type
Crane/ Hoist Information
Cable Length
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MSI- Load Pin Diagram
Load Pin
Outer Sections
Load Arrow
Center Section
Each MSI Load Pin has a minimum of two principal
loading areas referred to as Center and Outer
Sections. Each MSI Load Pin has an etched Load
Arrow to aid the installer to position load pin
in correct orientation. Rotate the load pin to
position the Load Arrow in the same direction as
the load is applied on the Center Section.
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Load Pin/Integrated Sensor System Diagram
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Idler Sheave Installation
Support
1/32 Clearance Both sides
Load

• Reduce errant effects of friction and/or binding,
  by allowing a minimum
• clearance of 1/32 on each side of the
  idler sheave.
• Position the load pin so that its Load Arrow is
  in the same direction as load is applied to the
  Center Section.
• 3. Firmly secure the load pin Anti-Rotational
  Keeper Plate with the idler sheave support plate..

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Dead End Installation

• Reduce errant effects of friction and/or binding,
  by allowing a minimum
• clearance of 1/32 between sides of clevis
  support and lug.
• Position the load pin so that its Load Arrow is
  in the same direction as load is applied to the
  Center Section.
• 3. Firmly secure the load pin Anti-Rotational
  Keeper Plate with the support clevis.

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Load Link training

• Overview, Specs, Applications Installation
  Guidelines

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Load Link Specification Overview

• Load Link Overview
• This load link style load cell is designed for
  tension applications such as Wire Rope Dead Ends.
  Other applications include winching, crane
  hoist scaling, and load monitoring systems. 
• Openings at both ends of the load link allow for
  easy connection to shackles, wire rope, or other
  rigging.  
• Load Links are available in capacities ranging
  from 250 pounds to over 500,000 lbs.  Custom size
  load links with specified safety factors are
  available upon request. 

• Standard Specifications
• Accuracy 0.1 of rated capacity and 0.5 on
  capacities over 50 tons
• Operating Temperature -4 to 140 F (-20 to
  60 C)
• Enclosure Corrosion resistant and
  environmentally sealed
• Overload 200 safe 500 ultimate
• Calibration Digital

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Load Link Applications

• Installed on crane wire rope dead-ends.
• 1 to 5 accurate weighing systems
• Load Monitoring Applications
• Caught Load
• Slack Line
• Overload
• Stage Theater Rigging

• Industries
• Energy
• Crane/Hoist
• Stage Theater
• Manufacturing
• Metals

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Load Link
Ensuring that its performance is unrestricted
install MSI Load Link at wire rope dead-end.
Route sensor cable so that it doesnt bind or
induce excessive bending forces on its
connector.
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Load Link Applications
Dead-End Installation
Caught Load Monitoring Installation
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Clamp on device training

• Overview, Specs, Applications Installation
  Guidelines

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Clamp On Device Overview

• WRCS are low cost line tension sensors that fit a
  variety of cable sizes. This design does not
  require the user to cut any cables and
  create dead ends for load monitoring devices. 
  Instead, it simply clamps onto the middle of the
  wire rope and measures cable deflection to
  determine how much load is being applied.  

• Benefits
• Used in tension monitoring installations where a
  dead-end is not available.
• Can attach to the middle of  any cable run.
• Can be moved easily to other wire rope as
  required.
• Designed to handle any capacity.
• Not precision accurate and classified as a safety
  device rather than a weighing device.

• Features
• Accurate strain gauge measurement
• Designed for all deadline tension, electronic
  sensing applications
• Simple clamp-on design requires no deadline
  anchor
• Environmentally sealed load cell operates in the
  harshest environments
• Easy to use. Installs on wire rope from 3/4" to
  2" diameter
• Custom engineering available 

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Clamp On Device
Mounting Nuts
Clamp down plate
Install the wire rope Clamp-on Sensor at a
location that will not inhibit lifting height.
Note Once installed, the sensor shall remain
static while load is moving. To install position
wire rope in parallel with sensor, install clamp
down plate and tighten mounting nuts until wire
rope is firmly against the sensor center section.
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Load Link training

• Sensor Cable Interface for MSI-3550, MSI-9000,
  and Scoreboards

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• Sensor Interface to System Electronics
• The Load Sensor and its cable assembly have
  either 4 or 6 conductors plus shield to interface
  to the System electronics. Two of these
  conductors are dedicated to Excitation and two
  for Signal. For long cable runs (over 100 ft.),
  six conductors are generally provided to detect
  voltage loss. With 6 conductor cables, the last
  two conductors are for Sense.
• Excitation
• - Excitation
• Sense
• - Sense
• Signal
• Sense
• Refer to Sensor and Cable Assembly documentation
  for color designations.

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MSI Model 3350 Digital Weight Indicator
Remove back cover and connect load sensor per
diagram below
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MSI Model 3350 Digital Weight Indicator
When also installing a remote scoreboard, connect
its RS-232 cable to the input connector block
adjacent to the indicators Sensor input. The
MSI-3550 RS-232 TXD line connects to the
scoreboard RXD line and conversely MSI-3350s RDX
line connects to the scoreboard TXD. Also ensure
Ground is connected to (GND).
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9000 CellScale Electronics Load Sensor
Connector Connections
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9000 CellScale Electronics 9850 Digital
Indicator Scoreboards
If interfacing a Non-RF Remote Scoreboard, its
cable assembly will connect to either a Model
MSI-9000 CellScale or MSI-9850 Remote RF
Indicator. Please refer to appropriate User Guide
for conductor color-guide to determine RTX, DTX
and GND signals.   NOTE The TXD line connects
to the Scoreboard RXD line, the RDX line connect
to the TDX line in the Scoreboard and GND to GND
9000 User Manual Starting on Page 7
9850 User Manual Starting on Page 14
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CALIBRATION CONSIDERATIONS
As the position of a hoist load block changes,
system accuracy is effected. This is principally
due to changes in weight caused by increasing or
decreasing load representing the wire rope feed.
As load is lowered or raised the weight of the
wire rope distributed to the application will
change and displayed as more or less load. To
minimize these effects, the system should be
calibrated with a load at a position equal to the
anticipated application weighing position. For
example, if application weight readings will be
typically recorded at a load height of 10 ft.,
the system calibration should be performed at the
same position. If the crane is required to weigh
at different heights, then the hoist load block
should be located in the center of its minimum
and maximum travel positions during calibration.
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CALIBRATION SETUP
Use Calibration Setup to perform initial
calibration or to revise Factory settings.
There are two forms of Calibration 1) Initial
calibration 2) Standard Calibration MSI-3550
Calibration To properly calibrate a system,
test-weights of sufficient capacity are required.
While having test weights equaling the system
capacity will result in most accurate system
calibration, typically 50 of the rated capacity
is recommended. Note Except when entering
weight values, turning the System power off will
safely terminate Calibration Procedure.
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3550 Digital Indicator SYSTEM INITIALIZE
Caution System Initialization is only required
when Indicator Circuit Boards are replaced or the
system capacity requires changing. Function Usual
ly used when boards are replaced, system
troubleshooting or sensor replacement. The
procedure clears the calibration settings, but
retains the factory feature settings. Action 1)
Turn off the scale by pressing the POWER key. 2)
Remove seal port on left side of indicators
front panel. Depress the switch button (via
hole with a probe) and simultaneously press the
POWER key. 3) The indicator will display the
user-prompt SureE? to confirm technician
wants to perform a complete system
initialization. 4) To proceed with system
initialization, press the TARE button. To abort
initialization, press the ZERO Button. Note
Aborting this procedure will not reset
system parameters.
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ZERO functions as CLEAR/EXIT Use the ZERO Button
to exit the Setup menu without affecting system
settings or exiting Setup Mode. While entering
numeric values, you can use the ZERO Button to
clear an errantly entered digit. TARE functions
as ENTER For menu selection and choosing menu
items. USER functions as SELECT Used to scroll
through menus and if held down the Select will
repeat automatically. Use the POWER function
button to enter a decimal point. (i.e. Tare or
Set Point).
Calibration Instructions begin on page 24 of
MSI-3550 User Manual
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3650/3750 Digital Indicator
Model MSI-3650 Calibration Instructions begin on
page 38 of its User Manual
Model MSI-3750 Calibration Instructions begin on
page 112 of its User Manual
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Model 9000 CellScale Calibration

• The MSI-9000 CellScale can be calibrated with
• 1) A computer interface via MSI-9000s Com port 1
• To calibrate with the MSI-9000, refer to page 74
  of its User Manual
• 2) Remote RF interface with the MSI-3750CS,
  MSI-9850 or MSI-9750A indicators
• To calibrate with the MSI-3750CS, refer to page
  77 of its User Manual
• To calibrate with the MSI-9850, refer to page 92
  of its User Manual
• To calibrate with the MSI-9750A, refer to page 72
  of its User Manual
• 3) Computer interface using MSI CVM software
• Refer to following slides

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Model 9000 CellScale Calibration
Model MSI-9000 Calibration Instructions with
Computer with CVM Software
Step 1
After selecting Scale then CellScale then
Calibration The following menu will appear.
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Step 2
Select the proper scale then press Start The
following menu will appear
Step 3
Select Units then press Continue the
following menu will appear
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Step 4
Enter capacity of system then press Continue
the following menu will appear
Step 5
Select Resolution then press Continue the
following menu will appear
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Stop 6
Enter calibration weight and then load scale with
weight. Press Continue and the following will
appear
If a multi-point calibration is desired repeat
step six.
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When the last calibration weight/value has been
entered and accepted, press Save and the
following will appear
Step 8
Close the calibration window, unload the test
weights and the computer will state Calibration
is Complete