Harbor Freight Tools 66400 User Manual

DIGITAL

CONTACT

66400

TACHOMETER

INSTRUCTIONS AND PRECAUTIONS

Distributed exclusively by Harbor Freight Tools®.

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our website at: http://www.harborfreight.com

SAVE THESE INSTRUCTIONS. READ ALL

PRECAUTIONS AND INSTRUCTIONS.

Copyright© 2008 by Harbor Freight Tools®. All rights reserved. No portion of this document or any artwork contained
herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this document may not be drawn proportionally. Due to continuing improvements, actual product
may differ slightly from the product described herein. Tools required for assembly and service may not be included.

For technical questions or replacement parts, please call 1-800-444-3353.

SPECIFICATIONS

Display LCD 5 Digits

RPM Range 2.5 - 19,999 RPM

Accuracy ± 0.05 plus 1 RPM

Power Source

Operating
Environment

(4) 1.5 VDC (AA) Batteries
(Not Supplied)

32° - 104° F; 0 - 50°
< 85% Humidity

UNPACKING

When unpacking, check to make sure that
the item is intact and undamaged. If any parts are
missing or broken, please call Harbor Freight Tools
at the number shown on the cover of this document
as soon as possible.

Your tool includes:

Digital Touch Tachometer•

(3) Adapters•

Revised Manual 09c

IMPORTANT SAFETY

INFORMATION

When in use, this tool is in contact with rotat-1.
ing parts.

Do not touch rotating parts. Do not wear 2.
loose clothing when working with rotating
parts. Contain hair, jewelry and any item that
may become entangled in rotating part.

This product is not a toy. Do not allow chil-3.
dren to play with or near this item.

Position batteries in proper polarity and do 4.

not install batteries of different types, charge

levels, or capacities together.

Use as intended only.5.

Inspect before every use; do not use if parts 6.

are loose or damaged.

Maintain product labels and nameplates. 7.

These carry important safety information.

If unreadable or missing, contact Harbor

Freight Tools for a replacement.

Read the ENTIRE IMPORTANT
SAFETY INFORMATION section
at the beginning of this document
including all text under subheadings
therein before set up or use of this
product.

IMPORTANT COMPONENTS

AND CONTROLS

M/MIN Linear Speed in Meters per Minuteb.

CONTACT Rotation speed in RPMc.

Display

Symbol Meanings:

Battery Symbol: Batteries are low and must a.
be replaced.

MAX: Maximum reading is displayedb.

MIN: Minimum reading is displayed.c.

CONTACT: Function Switch test mode set-d.
ting.

ft/min: Speed Unit in Feet per minute.e.

m/min: Speed unit in Meters per minute.f.

RPM: Rotational speed in revolutions per g.
minute.

1. Rotation Axis. Install the selected Adapter on

this Axle.

TEST Button. Use to perform Tests.2.

LCD Display. Information is displayed on this 3.

screen.

MEMORY Button. Use to recall last reading, 4.

minimum reading and maximum reading of

last test.

Function Switch. Use to select desired mea-5.

surement:

FT/MIN Linear speed in Feet per Minutea.

SKU 66400 For technical questions, please call 1-800-444-3353. Page 2