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Summary of Contents for Fluke 931
- Page 1 Tachometer Users Manual PN 3409877 January 2009 © 2009 Fluke Corporation, All rights reserved. Printed in Germany. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
- Page 2 Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption.
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Page 3: Table Of Contents
931 Tachometer CONTENTs Introduction ......................1 How to contact Fluke ................... 1 Included Accessories ..................... 1 The Keypad ......................1 The Display ......................2 Operation ......................3 Configuration ....................3 Optical (Non-Contact) ..................3 Contact ......................3 Surface Speed and Length ................4 Contact Wheel Use .................. - Page 4 A Mechanical Adapter F Reflector Strip B Shaft Contacts G Display C Contact wheel 0.1 m H Memory key D Contact wheel 6 inch I Function key E Shaft Extention J ON key...
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Page 5: Introduction
INTRODuCTION The Fluke 931 Tachometer (the Tachometer) is a hand-held instrument that accurately measures rotational Revolutions Per Minute (RPM) or surface speed as well as length. Non-contact RPM measurements can be made using the Infrared Beam function, or contact RPM measurements using the mechanical adapter and selectable tip. -
Page 6: The Display
THE DIspLAY Item Description Optical RPM measurement Contact RPM measurement Meters per minute Meters per second Feet per minute Feet per second Inches per minute Trigger display Memory, last stored reading Memory, maximum reading Memory, minimum reading Memory, average reading Low battery indicator Numerical reading... -
Page 7: Operation
OpERATION Press to power up the Tachometer. The display test illuminates all LCD segments for 1 second and then shows the configured surface speed selection. • The last selected mode appears at when the Tachometer is turned ON. • The Tachometer automatically turns OFF after 30 seconds of inactivity. CONFIguRATION To configure the Tachometer for the correct contact wheel used for surface speed measurements:... -
Page 8: Surface Speed And Length
suRFACE spEED AND LENgTH Surface speed and length can be measured using the mechanical adapter and contact wheel. Range 0.1 m 6 ” m/min 0.10 to 1999 0.10 to 1524 ft/min 0.40 to 6550 0.40 to 5000 in/min 4.0 to 78700 4.00 to 60000 m/sec 0.10 to 33.30... -
Page 9: Replacing The Batteries
REpLACINg THE BATTERIEs Replace the batteries when LOBAT appears on display. See Figure 3. Remove the battery cover on back of the Tachometer. Replace with 2 AA 1.5V LR6 (Alkaline) batteries. Replace the battery cover. spECIFICATIONs Range Optical (non-contact) 1 to 99999 RPM Contact 1 to 19999 RPM Accuracy... - Page 10 Handling RPM / 1.00 - 99999 rpm 0, 10 - 19999 rpm...
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