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Table of Contents
REVISIONS TO THIS MANUAL ................................................................................................................I
REVISION DATE ..................................................................................................................................................................I
TABLE OF REVISIONS .......................................................................................................................................................I
TABLE OF CONTENTS ...........................................................................................................................II
TABLE OF FIGURES ........................................................................................................................................................ III
1. INTRODUCTION .................................................................................................................................1
1.1 UNPACKING YOUR DIAL WEIGHT DYNAMOMETER ......................................................................................... 1
1.2 TECHNICAL SPECIFICATIONS ................................................................................................................................ 1
1.2.1
HYSTERESIS BRAKE CONTROL POWER ................................................................................................ 1
2. INSTALLATION/CONFIGURATION ....................................................................................................2
2.1 COUNTER WEIGHTS ................................................................................................................................................. 2
2.2 DYNAMOMETER LEVELING ................................................................................................................................... 2
2.3 SYSTEM CONFIGURATION ...................................................................................................................................... 2
2.3.1
SPEED READOUTS ...................................................................................................................................... 2
2.3.2
POWER SUPPLIES ........................................................................................................................................ 2
2.3.3 CONNECTIONS............................................................................................................................................. 3
2.4 INITIAL CHECKOUT .................................................................................................................................................. 3
3. TESTING CONSIDERATIONS ............................................................................................................4
3.1 SAFETY ........................................................................................................................................................................ 4
3.2 ACCURACY ................................................................................................................................................................. 4
3.2.1
TORQUE SCALE GRADUATIONS .............................................................................................................. 5
3.3 POWER DISSIPATION ................................................................................................................................................ 5
3.3.1
POWER ABSORPTION CURVES................................................................................................................. 5
3.4 FIXTURES AND COUPLINGS ................................................................................................................................... 9
3.5 WINDAGE .................................................................................................................................................................. 10
3.6 FRICTION ................................................................................................................................................................... 10
3.7 VIBRATION ................................................................................................................................................................ 11
3.8 COGGING ................................................................................................................................................................... 11
3.9 EDDY CURRENTS .................................................................................................................................................... 12
3.10 TEMPERATURE RISE ............................................................................................................................................... 12
4. OPERATING PRINCIPLES ...............................................................................................................13
4.1 SPEED ......................................................................................................................................................................... 13
4.2 TORQUE ..................................................................................................................................................................... 13
4.2.1
TORQUE STABILITY ................................................................................................................................. 13
5. CALIBRATION ..................................................................................................................................14
5.1 CALIBRATION PREPARATION ............................................................................................................................... 14
5.2 CALIBRATION PROCEDURE .................................................................................................................................. 14