EDjunior Dynamometer
and Crane Scale
User Instructions
29810-0017 Issue AG Sept. 2012
© Avery Weigh-Tronix, LLC 2012. All rights reserved.
No part of this publication may be reproduced, stored in an electronic retrieval system, or transmitted in any form
or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior written consent of
the copyright owner, or as permitted by law or under license. Full acknowledgment of the source must be given.
Avery Weigh-Tronix is a registered trade mark of the Avery Weigh-Tronix, LLC. This publication was correct at the
time of going to print however, Avery Weigh-Tronix, LLC reserves the right to alter without notice the specification,
design, price or conditions of supply of any product or service at any time.
All third party brands and product names used within this document are trademarks or registered trademarks of
their respective holders.
edjr_u_en_29810_0017.book
Table of Contents
page
Chapter 1 General information and warnings ......................................................................................... 5
About this manual ..............................................................................................................5
Text conventions ......................................................................................................... 5
Special messages ....................................................................................................... 5
Installation .......................................................................................................................... 6
Safe handling of equipment with batteries .................................................................. 6
Safe Operation ................................................................................................................... 6
Routine maintenance ......................................................................................................... 8
Cleaning the machine ........................................................................................................ 8
Training .............................................................................................................................. 8
Sharp objects ..................................................................................................................... 8
Chapter 2 Introduction .............................................................................................................................. 9
Chapter 3 EDjr Description ..................................................................................................................... 10
EDjr Front Panel .............................................................................................................. 10
EDjr Keys .................................................................................................................. 11
Chapter 4 Power On and Annunciators ................................................................................................. 12
Chapter 5 EDjr Setup ...............................................................................................................................13
Setup>Misc ...................................................................................................................... 13
Setup>About ....................................................................................................................14
Setup>Test ...................................................................................................................... 14
Chapter 6 EDjr Operation ........................................................................................................................ 16
Display Modes ................................................................................................................. 16
Force Measurement ......................................................................................................... 16
Force Measurement Rezero ............................................................................................ 16
Displaying Peak Force ..................................................................................................... 17
Calculating Tension in a System ...................................................................................... 18
Chapter 7 Troubleshooting ..................................................................................................................... 19
Chapter 8 Weighing and Force Measurement Practice ........................................................................ 20
Load Centering ................................................................................................................ 20
Alignment ......................................................................................................................... 20
Proper Pin Fit ................................................................................................................... 20
Torque and Bending ........................................................................................................ 20
Certified Gear ................................................................................................................... 20
E1070 Indicator Service Manual 3
4 E1070 Indicator Service Manual
1 General information and warnings
1.1 About this manual
This manual is divided into chapters by the chapter number and the large text at the top
of a page. Subsections are labeled as shown by the 1 and 1.1 headings shown above.
The names of the chapter and the next subsection level appear at the top of alternating
pages of the manual to remind you of where you are in the manual. The manual name
and page numbers appear at the bottom of the pages.
1.1.1 Text conventions
Key names are shown in bold and reflect the case of the key being described. This
applies to hard keys and onscreen or soft keys.
Displayed messages appear in bold italic type and reflect the case of the displayed
message.
1.1.2 Special messages
Examples of special messages you will see in this manual are defined below. The
signal words have specific meanings to alert you to additional information or the relative
level of hazard.
DANGER!
THIS IS A DANGER SYMBOL.
DANGER MEANS THAT FAILURE TO FOLLOW SPECIFIC PRACTICES
OR PROCEDURES WILL CAUSE INJURY OR DEATH.
ELECTRICAL WARNING!
THIS IS AN ELECTRICAL WARNING SYMBOL.
ELECTRICAL WARNINGS MEAN THAT FAILURE TO FOLLOW
SPECIFIC PRACTICES OR PROCEDURES MAY RESULT IN
ELECTROCUTION, ARC BURNS, EXPLOSIONS OR OTHER HAZARDS
THAT MAY CAUSE INJURY OR DEATH.
WARNING!
This is a Warning symbol.
Warnings mean that failure to follow specific practices and procedures may
have major consequences such as injury or death.
CAUTION!
This is a Caution symbol.
Cautions give information about procedures that, if not observed, could result
in damage to equipment or corruption to and loss of data.
EDjunior Dynamometer User Instructions 5
NOTE: This is a Note symbol. Notes give additional and important information, hints
and tips that help you to use your product.
1.2 Installation
DANGER: RISK OF ELECTRICAL SHOCK. NO USER SERVICEABLE
PARTS. REFER TO QUALIFIED SERVICE PERSONNEL FOR SERVICE.
1.2.1 Safe handling of equipment with batteries
CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended by the manufacturer. Dispose
of used batteries according to the manufacturer’s instructions.
ATTENTION: Il y a danger d'explosion s'il y a remplacement incorrect de la
batterie, remplacer uniquement avec une batterie du même type ou d'un type
équivalent recommandé par le constructeur. Mettre au rebut les batteries
usagées conformément aux instructions du fabricant.
1.3 Safe Operation
Keep all the following in mind as you use the EDjr dynamometer.
DANGER: IF YOU OVERLOAD THIS DYNAMOMETER YOU COULD
SUFFER SEVERE INJURIES OR DEATH. THE TOTAL LOAD ON THE
DYNAMOMETER SHOULD NEVER EXCEED THE RATED CAPACITY.
The system capacity is equal to the rating of the dynamometers. The shackle rating
should not be used to determine lift capacity of the system.
Any zeroed deadload must be considered as part of the
ultimate load.
Although this instrument has a substantial overload protection rating, the instrument
should not be used above the rated capacity. Doing so can significantly impact fatigue
life of the instrument and cause premature and abrupt failure. If a higher capacity
reading is needed, Dillon insists that a larger instrument be used.
6 EDjunior Dynamometer User Instructions
Safety is always a concern in overhead lifting and tensioning applications. To limit your
liability always insist upon factory supplied shackles and pins and factory tested and
certified safe optional equipment. All DILLON products are designed to meet the
published Safe Working Load (SWL) and Ultimate Safety Factor (USF) standards of the
United States Military.
Do not grind, stamp or deform the metal on the dynamometer body in any way.
Any significant damage or deformation to the loading element is cause for evaluation
by Dillon, particularly in the element side members to the right and left of the display.
Relieve all torsional and off axis loads.
Apply load in the center of the shackle bow with this instrument.
Off center loading results in substandard performance.
Instrument requires time to stabilize when changing temperatures.
Use only the hardware supplied with this instrument. If no hardware was supplied,
insure that the mating pin and shackle bow is equivalent to the hardware used at
calibration. Otherwise substandard performance can result.
Dillon recommends only using qualified rigging hardware and cannot be responsible
for unapproved hardware.
This instrument is not designed for the following:
l Applications that see rapid, dramatic temperature swings or thermal shock.
Wide variation in readings can occur.
l Environments with high electromagnetic fields such as cranes employing
electromagnets to lift metal. These induce trace voltages that are picked up
within the load cell lead wiring and appear as inaccurate loads.
l Intrinsically safe environments. This unit has not been Factory Mutual
tested.
EDjunior Dynamometer User Instructions 7
1.4 Routine maintenance
IMPORTANT: This equipment must be routinely checked for proper operation
and calibration.
Application and usage will determine the frequency of calibration required for
safe operation.
1.5 Cleaning the machine
Table 1.1 Cleaning DOs and DON’Ts
DO DO NOT
Wipe down the outside of standard products
with a clean cloth, moistened with water and
a small amount of mild detergent
Spray the cloth when using a proprietary
cleaning fluid
1.6 Training
Do not attempt to operate or complete any procedure on a machine unless you have
received the appropriate training or read the instruction books.
To avoid the risk of RSI (Repetitive Strain Injury), place the machine on a surface which
is ergonomically satisfactory to the user. Take frequent breaks during prolonged usage.
1.7 Sharp objects
Do not use sharp objects such as screwdrivers or long fingernails to operate the keys.
Attempt to clean the inside of the machine
Use harsh abrasives, solvents, scouring cleaners or
alkaline cleaning solutions
Spray any liquid directly on to the display windows
8 EDjunior Dynamometer User Instructions
2 Introduction
The EDjuniorTM (EDjr) electronic dynamometer from Dillon is a force measurement
load sensor and digital readout in one instrument. The EDjr can be used to measure
tension or weight.
This manual covers the setup and operation of the EDjr. General information is covered
in the right column of each page with major sections separated by the black bar shown
above. Subheads appear in the left column along with any special notes, cautions or
warnings.
This manual covers the following:
l EDjr Description
l EDjr Setup
l EDjr Operation
l Troubleshooting
Be sure to read the safety precautions found in the Safe Operation section.
DANGER: IF YOU OVERLOAD THIS DYNAMOMETER YOU COULD
SUFFER SEVERE INJURIES OR DEATH. THE TOTAL LOAD ON THE
DYNAMOMETER SHOULD NEVER EXCEED THE RATED CAPACITY.
EDjunior Dynamometer User Instructions 9
3 EDjr Description
ESC
3.1 EDjr Front Panel
The EDjr comes in several weight capacities. All have the same front panel, shown in
Figure 3.1.
Figure 3.1 EDjunior front panel
10 EDjunior Dynamometer User Instructions
3.1.1 EDjr Keys
ESC
There are four “hard” keys and four “soft” keys. The hard keys are permanently labeled
and the soft keys are just below the display. The soft key functions change and the key
label appears above each key on the display. Sometimes the individual soft keys are
referred to as the F1, F2, F3 and F4 keys as numbered from left to right.
On/Off key Use this key to turn the unit on and off.
ZERO key Use this key to zero the force indicated on the display.
ESC key
Arrow key Use this key to access any available soft keys not currently viewed.
Use this key to escape from portions of the menu structure and
return to previous choices or displays.
EDjunior Dynamometer User Instructions 11
4 Power On and Annunciators
Force
Force
lbf lbf
00
Clear
Mode ConfigSetupUnits
Arrow key
press
ESC key
press
P
When you power up the EDjr you will see a display similar to the example shown on
the left in Figure 4.1.
Figure 4.1 Initial displays
Depending on permission settings and/or revision of firmware, various soft keys may
be in a different location or not visible.
The display sample above shows several symbols you may see on your display but
usually not all at the same time.
Force This tells you that the display is showing live force measurement at the
moment. Will show Peak when viewing Peak Mode.
lbf Current unit of measure is lbf in this example. May also be kgf or N. See
note below.
~ Motion symbol. This appears when the force is in motion. This symbol
disappears when motion ceases.
Battery annunciator. This shows approximate remaining battery life.
Capture of a new peak value. This annunciator will remain lit for a few
seconds.
lbf and kgf are units of force, not weight.
12 EDjunior Dynamometer User Instructions
5EDjr Setup
Setup
Misc
Flash Zero Contr
O.Load
Zero
Calib
About
Device
Software rev.
link info
Lists #
of overloads
List current
zero
compared
against
cal zero
Points
Display
calibration
points
Enable
keypad
display
flash
Clear
peaks
on Zero
press
Adjust
LCD
contrast
Te st
A-D
Tes t
A-D
Disp.
Te st
display
Keys
Te st
keys
Batt
Tes t
battery
One of the first things you should do to begin using the EDjr is to set it up to suit your
specific needs and equipment. You can access the Setup menu, shown in Figure 5.1,
using the soft keys. Press the appropriate soft key to accomplish the functions listed on
the following pages.
Figure 5.1 Operator setup menu
5.1 Setup>Misc
EDjunior Dynamometer User Instructions 13
Press the Misc key to access the following soft key set (refer to Figure 3):
Flash Press this soft key to enable or disable the “display flash” feedback. If
Zero Press this soft key to enable or disable the Zero key’s ability to also clear
Contr Press this key to adjust the contrast of the LCD display. Press the Down
enabled, the press of a key causes the display to momentarily flash to give
you a visual feedback that the key was activated.
the Peak force value. If you enable this function, press the Zero key to
clear the Peak force and zero the load. If you disable the function, the Zero
key will only zero the load. Peak force remains in effect and will only be
cleared with the Clear function during operation.
soft key to lighten the contrast. Press the Up soft key to darken the
contrast.
Sometimes the individual soft keys are referred to as the F1, F2, F3 and F4 keys as
numbered from left to right.
5.2 Setup>About
The next soft key is About. The About menu shows an assortment of information about
your Dillon instrument. This can be handy for maintaining calibration, troubleshooting
or determining if the firmware can be upgraded. Press this and access the following soft
key set (refer to Figure 3):
Device Press this to see software revision and dynamometer information.
Dillon suggests that calibration data be recorded and saved.
There is a keypad shortcut for increasing and decreasing contrast. While
in normal display mode press Arrow key and F2 simultaneously to
increase contrast. Press Arrow key and F1 simultaneously to decrease
contrast.
Calib This soft key access the following soft key set:
5.3 Setup>Test
The Test functions can help service technicians remotely diagnose your Dillon
instrument by showing information on key internal functions. Typically these menus will
have significance only to trained technicians . You may look at these menus without
technical guidance, but the information may have little meaning, or an error may be
reported that may not exist.
Press this key to access several items described below (refer to Figure 5.1):
Batt Press this key to perform a battery test. This shows the battery level in A-
Points Press this key to display the calibration loading points.
O.Load Lists the number of overloads that have occurred since the unit was
manufactured.
Zero Lists the current zero point compared to the calibration zero point. If
the zero point has moved significantly, this may indicate a serious
overload has occurred and the instrument should be returned for
service.
D counts and approximate voltage. Voltage is not calibrated.
A-D Press this key to test the A-D section of the EDjr. You need to apply force
to change the counts and test the unit. The A-D is the electronics portion
that converts analog load cell signal to digital numbers.
Disp. Press this key to perform a display test. Stop the test by pressing the ESC
key.
14 EDjunior Dynamometer User Instructions
Keys Press this key to perform key tests. Any key pressed will be reflected in the
display. Press to end the test.
EDjunior Dynamometer User Instructions 15
6 EDjr Operation
6.1 Display Modes
The EDjr has two display modes accessible by pressing the Mode soft key. See Figure
6.1.
The first display mode when you power up is the live force measurement mode.
Press the Mode soft key and the display changes to peak measurement mode. This
mode shows the peak force applied to the EDjr since the last peak clearing action.
Delete the peak reading by pressing the Clear soft key.
Press the Mode soft key again and the display returns to the force measurement mode.
6.2 Force Measurement
Follow these steps to perform a gross force measurement.
1. Turn on the unit with the On/Off key.
2. Remove any weight from the EDjr.
3. Zero the EDjr by pressing the ZERO key.
4. Apply the force to the EDjr and read the gross force on the display.
You can change the units of measure of the display by pressing the Units soft key. Zero
reference is maintained after instrument power off and will be recalled with the next
power-on. Zero reference may be lost if battery power is removed.
6.3 Force Measurement Rezero
Rezeroing allows the weight or load of fixturing to be invisible to the measurement. The
zeroed load must always be considered as part of the maximum capacity.
1. Turn on the unit with the On/Off key.
2. Remove any weight from the EDjr.
3. Zero the EDjr by pressing the ZERO key.
4. Apply the tare force to the EDjr and press the ZERO key.
5. Apply the force to the EDjr and read the net force on the display.
Steps 2 and 3 are not required if the weight of the fixturing is not needed. This should
be maintained, however, to know cumulative loads.
16 EDjunior Dynamometer User Instructions
6.4 Displaying Peak Force
Force
Peak Peak
Force
lbf
lbf lbf
lbf
0
0
0
0
Display #2Mode
Display Mode #1
Live force
reading
Peak force
reading
Arrow key
press
Mode key
press
Arrow key
press
Clear
Mode ConfigSetupUnits
Clear
Mode
Config
SetupUnits
ESC key
press
ESC key
press
The EDjr will store the peak force applied until that reading is cleared. To display the
peak force applied to an EDjr, from the force measurement mode, press the Mode soft
key. The display changes to display mode #2 shown in Figure 6.1 which is the peak
display mode. The peak force is displayed. You can clear this by pressing the Clear soft
key.
Peak force can only be reset to zero if live force is zero. Peak force will reset to match
live force.
Peak reading is maintained after instrument power off and will be recalled with the next
power-on. Peak reading may be lost if battery power is removed.
Figure 6.1 Display mode menu
EDjunior Dynamometer User Instructions 17
Press the Mode soft key until the desired display mode is reached.
6.5 Calculating Tension in a System
Cable
T
T=
2 cos
F
F
2
Truck Winch
The setup shown above will give you an approximate tension reading. This can vary
from actual tension due to variables in equipment and environment.
18 EDjunior Dynamometer User Instructions
7 Troubleshooting
Problem Possible Cause Solution
EDjr powers on momentarily
and turns off
EDjr does not power on Low battery
Display is completely dark Display contrast too dark Hold the Arrow key down while pressing the F1 key several times to
Low battery
Bad keypad
Bad keypad
Batteries installed backwards
or no spring contact
Software reset Remove battery cap & reinstall after one minute. Attempt to turn
Display contrast too light Hold the Arrow key down while pressing the F2 key several times to
Replace with high quality alkaline batteries
Have EDjr serviced
Replace with high quality alkaline batteries
Have EDjr serviced
Insure that positive terminals of both batteries (nub) face inward –
towards the black cap. Check that spring is attached to the battery
cap.
power on again.
increase the display contrast. If nothing occurs, release both keys.
Press the power button and try again.
decrease the display contrast.
EDjunior Dynamometer User Instructions 19
8 Weighing and Force Measurement Practice
The basis for all electronic force measurement or weighing is measurement of stress
in a loadcell body. To obtain optimal results it is necessary to establish a few basic rules,
otherwise the effect may be a nonlinear or non-repeatable response. Read and follow
these tips and see the illustrations on the next page.
8.1 Load Centering
For accurate performance the force acting on the unit must be in line with the unit.
8.2 Alignment
Insure shackles are oriented parallel with the instrument. Apply load in the center of the
shackle bow.
8.3 Proper Pin Fit
A proper fitting pin is important in order to generate an even stress distribution and
avoid yield stresses. To achieve published accuracy you must use the shackle pins
provided by Dillon.
8.4 Torque and Bending
Torque and bending should be avoided. Use swivels on the lifting wire for anti-torque
and avoid side forces.
8.5 Certified Gear
Certified shackles and lifting gear should always be used in accordance to local laws
and federal legislation. Insure all hardware, fittings and line used to sustain the load are
properly sized and rated for the installation. Have the system evaluated by a qualified
engineer if any question or uncertainty exists.
20 EDjunior Dynamometer User Instructions
Center the load
on the shackle pin.
Use spacers to
insure centering
where applicable.
Use only with
a pin of the
same diameter
and hardness
as the original
factory equipment.
Do not torque,
bend or
sideload.
Use hardware that allows
single point attachment
and freedom of alignment.
Do not use hardware that
is undersize or restricts
self-alignment. This results in
poor measurement
performance and possible
dangerous safety conditions.
Be sure fixturing does
not bind between the
body of the EDjr and
the shackle!
EDjunior Dynamometer User Instructions 21
Figure 8.1 Good force measurement practice
22 EDjunior Dynamometer User Instructions
AUTHORIZED DISTRIBUTORS
Ask the experts. Dillon distributors offer complete
service capabilities from application assistance to
sales and product support. Their experienced
representatives are the most knowledgeable
experts that you will find in the force measurement
industry. We recommend that you consult these
capable specialists for all of your measuring needs.
Overload Protection and
Overhead Weighing Equipment
Fairmont, Minnesota U.S.A.
Toll-Free: (800) 368-2031
Phone: (507) 238-4461
Fax: (507) 238-8258
www.dillon-force.com
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