16 EDjunior Dynamometer User Instructions
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.
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