CEN-TECH 47257 User Manual

6” DIGITAL CALIPER
Model 47257
OPERATING INSTRUCTIONS
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2009 by Harbor Freight Tools
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or any artwork contained herein may be reproduced in any shape or form without the
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CEN-TECH 47257 Specifications

General

Model	47257
Brand	CEN-TECH
Category	Measuring Instruments
Type	Digital Multimeter
Power Source	9V Battery
Diode Test	Yes
Continuity Buzzer	Yes
Display Type	LCD
Safety Rating	CAT II 600V
AC Voltage Range	200V
DC Current Range	200μA to 10A
Resistance Range	200Ω to 2MΩ
Display Digits	3.5

Summary

Important Safety Information

Safety Alert Symbol Definitions

Explains hazard symbols like DANGER, WARNING, and CAUTION used in the manual.

General and Specific Safety Rules

Work Area Safety Precautions

Outlines precautions for the work area, including keeping children away, cleaning, lighting, and proper storage.

Components and Controls

Caliper Component Identification

Controls

Caliper Control Identification

Basic Operation

Step-by-Step Basic Operation

Provides a detailed step-by-step guide for performing basic measurements with the digital caliper.

Basic Operation (Continued)

Reading Measurements and Power Off

Performing Outside Measurement

How to Measure Outside Dimensions

Details the procedure for taking outside measurements using the caliper's outside measurement jaws.

Performing Inside Measurement

How to Measure Inside Dimensions

Details the procedure for taking inside measurements using the caliper's inside measurement jaws.

Measurement Techniques

How to Make Depth Measurements

Explains the process of using the depth measuring blade to measure the depth of holes.

How to Make Step Measurements

Details how to perform step measurements using the caliper's jaws.

Compound Measurements

Procedure for Center Distance

Special Measurement Applications

Comparing Shafts to Holes

Determining Material Thickness

Replacing The Battery

Battery Replacement Procedure