Fluke 73 III - User Manual

70/73 English Instruction Sheet
Page 1
®
70/73
Series III Multimeter
Instruction Sheet
W Read First: Safety Information
To ensure that the meter is used safely, follow these instructions:
• Never use the meter if the meter or test leads look damaged.
• Be sure the test leads and rotary switch are in the correct
position for the desired measurement.
• Never measure resistance in a circuit when power is applied.
• Never touch the probes to a voltage source when the test
leads are plugged into the 10 A or 300 mA input jack.
• To avoid damage or injury, never use the meter on circuits that
exceed 4800 volt-amps.
• Never apply more than the rated voltage between any input
jack and earth ground.
• Be careful when working with voltages above 60 V dc or 30 V
ac rms. Such voltages pose a shock hazard.
• Keep your fingers behind the finger guards on the test probes
when making measurements.
Warning
To avoid false readings, which could lead to
possible electric shock or personal injury, replace
the battery as soon as the battery indicator (N)
appears.
Symbols
W
Read First: Safety Information
Z
Manual Range or Automatic Touch Hold mode
T
Double Insulation
CAT II
Overvoltage Installation Category per IEC 1010-1.
Typical CAT II locations include main wall outlets,
local appliances, and portable equipment.
PN 650454 August 1997 Rev.2, 2/98

1997, 1998 Fluke Corporation. All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.

Summary

Safety Information

Key Safety Precautions

Instructions on lead condition, correct settings, and avoiding contact with live circuits.

Battery Replacement Warning

Automatic Touch Hold Mode

Touch Hold Safety and Limitations

Measurement Functions Overview

Diode Test Guide

Current Measurement Procedure

Current Measurement Safety & Fuse Use

Critical safety advice for current measurement, including voltage limits and using the 10A jack.

Maintenance and Component Safety

Battery and Fuse Replacement

Key Meter Specifications

Accuracy and Measurement Specs

Accuracy Specifications by Function

Voltage, mV, and Resistance Accuracy

Current Measurement Accuracy

Technical Performance Specifications

Overload Protection and Input Specs

Details on overload protection limits, input impedance, and mode rejection ratios.

Fluke 73 III Specifications

General

Continuity	Yes
Diode Test	Yes
Safety Rating	CAT III 600 V
Voltage DC	600 V
Voltage AC	600 V
Current DC	10 A
Current AC	10 A
Resistance	32 MΩ
Battery Type	9V