Greenlee CM-900 User Manual

999 4754.4 © 2003 Greenlee Textron 3/03
CM-900 • CM-950
Digital Clamp-on
Meters
Medidores digitales
con pinza
Multimètres
numériques à pinces
INSTRUCTION MANUAL
INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
MANUEL D’INSTRUCTIONS
Read and understand all of the instructions and safety
information in this manual before operating or servicing this tool.
Lea y entienda todas las instrucciones y la información sobre
seguridad que aparecen en este manual, antes de manejar estas
herramientas o darles mantenimiento.
Lire attentivement et bien comprendre toutes les instructions et
les informations sur la sécurité de ce manuel avant d‘utiliser ou de
procéder à l‘entretien de cet outil.

Greenlee CM-900 Specifications

General

Brand	Greenlee
Model	CM-900
Category	Multimeter
Language	English

Summary

Description

Safety

Purpose of This Manual

Important Safety Information

SAFETY ALERT SYMBOL

Explains the hazard alert symbol used in the manual for warnings.

Signal Words

Defines signal words like DANGER, WARNING, and CAUTION for hazard severity.

Electric Shock and Fire Hazards

Details hazards related to electric shock and fire when using the meter.

Operating Precautions

Covers precautions for operating the meter safely and avoiding damage.

Identification

Display Icons

Explains the meaning of various icons displayed on the meter screen.

Symbols on the Unit

Identifies and explains symbols found on the meter's body.

Using the Features

HOLD Button

How to use the HOLD button to freeze the displayed measurement.

Auto Power Off

Details the auto power off function and how to disable it.

MIN MAX Button

Instructions for using the MIN MAX button to record minimum/maximum values.

PEAK Button

How to use the PEAK button to record minimum and maximum peak values.

ZERO Button

Explains the function of the ZERO button for offset compensation.

AC Measurement

Operation

Typical Measurements

Voltage Measurement

Illustrates how to perform voltage measurements with the clamp meter.

Current Measurement—Clamp Around Wire

Details the procedure for measuring current by clamping around a wire.

Current Measurement—Clamp Around Line Splitter

Explains current measurement using a line splitter accessory.

Resistance Measurement

Illustrates how to perform resistance measurements.

Continuity Check

Details the procedure for performing a continuity check.

Accuracy

AC Current Accuracy

Provides accuracy specifications for AC current measurements.

AC Voltage Accuracy

Provides accuracy specifications for AC voltage measurements.

DC Current Accuracy

Provides accuracy specifications for DC current measurements.

DC Voltage Accuracy

Provides accuracy specifications for DC voltage measurements.

Resistance Accuracy

Provides accuracy specifications for resistance measurements.

Frequency Accuracy

Provides accuracy specifications for frequency measurements.

Peak Hold and Min Max Accuracy

Details accuracy for Peak Hold and Min Max functions.

Specifications

Measurement Categories

Measurement Category I

Defines Category I measurement conditions and examples.

Measurement Category II

Defines Category II measurement conditions and examples.

Measurement Category III

Defines Category III measurement conditions and examples.

Measurement Category IV

Defines Category IV measurement conditions and examples.

Maintenance

Battery Replacement

Step-by-step instructions for replacing the meter's battery.

Cleaning

Guidelines for cleaning the meter's exterior.

Lifetime Limited Warranty