EDjunior Dynamometer and Crane Scale User Instructions AWT35-501286 Issue AA
Dillon is a trademark of the Illinois Tool Works group of companies whose ultimate parent company is Illinois Tool Works Inc (“Illinois Tool Works”). Copyright © 2014 Illinois Tool Works. All rights reserved.
Table of Contents Chapter 1 General information and warnings ......................................................................................... 3 About this manual .............................................................................................................. 3 Text conventions ......................................................................................................... 3 Special messages ......................................................................................
2 EDjunior Dynamometer User Instructions
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.
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.
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.
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.
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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.
3 EDjr Description 3.1 EDjr Front Panel The EDjr comes in several weight capacities. All have the same front panel, shown in Figure 3.1. ESC Figure 3.
3.1.1 EDjr Keys 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. ESC 10 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.
4 Power On and Annunciators When you power up the EDjr you will see a display similar to the example shown on the left in Figure 4.1. Force Units lbf Mode 0 ESC key press Force lbf Arrow key press Clear Setup 0 Config 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.
5 EDjr Setup 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. Setup Clock Misc About Sets the time and date Device Test Batt A-D Disp. Keys Test battery Test A-D Test display Test keys Calib Software rev. link info O.
Contr Press this key to adjust the contrast of the LCD display. Press the Down soft key to lighten the contrast. Press the Up soft key to darken the contrast. 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 BLite Press this key to adjust the backlight brightness and sleep timer functions.
5.4 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): 14 Batt Press this key to perform a battery test.
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.
6.4 Displaying Peak Force 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.
6.5 Calculating Tension in a System Truck Winch T F T= F 2 cos 2 Cable The setup shown above will give you an approximate tension reading. This can vary from actual tension due to variables in equipment and environment.
7 Troubleshooting Problem Possible Cause Solution EDjr powers on momentarily Low battery and turns off Bad keypad Replace with high quality alkaline batteries Have EDjr serviced EDjr does not power on Low battery Bad keypad Replace with high quality alkaline batteries Have EDjr serviced Batteries installed backwards or no spring contact Insure that positive terminals of both batteries (nub) face inward – towards the black cap. Check that spring is attached to the battery cap.
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.
Be sure fixturing does not bind between the body of the EDjr and the shackle! 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.
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.
