Extech CMM-17 Operating Manual

Quick Start
CMM-17 Process Calibrator Multimeter

• Constant Voltage

• mA Source

• Square Wave

Remote

SCAN

J

K

OUT

E

T

SBY

88888

R

S

SHIFT

AUTO

@

OFF

88888

MAX

AVG

ms

MIN

Level

ACDC

F

C

k

Hz

4-20

0-20

sec

m

µ

AV

ACDC

0-20

C

4-20
0C

F

sec

sec

m

m

AV

µ

µ

Ù

Hz

Mk

• Auto Scan/Ramp

• Dual Display Multimeter

• Rechargeable Batteries

This guide provides an overview of the meter. For more detailed information, refer to the
CMM-17 User’s Guide provided with the meter.

Introduction

This process calibrator/meter is a hand-held, battery-operated instrument for testing and
troubleshooting power electronic systems. This device can be used not only for instrument
system maintenance, but also for maintaining, servicing industrial meters, testing electronic
circuits and electronic equipments. The meter can also be used to measure or calibrate
sensors or transmitters in automotive or automatic control system.

The meter generates a high precision constant voltage, constant current and square wave
output and includes a full feature, high accuracy multimeter. The precision source and the
measurement functions can perform simultaneously.

Main Features:

• Generates and Measures Signal simultaneously

• 1,200Ω drive capability with special yellow lead for 20mA simulation

• High precision Constant voltage, Constant Current and Square wave outputs

• Intelligent Output and Standby control

• Built-in Ni-MH rechargeable battery

• Smart Charger design without battery removal

• Brightness EL backlight

• Coarse or Fine output adjust

• The % scale readout for 4-20mA or 0-20mA

• Adjustable steps and time interval for Auto Scan

• Adjustable resolutions and start for linear Ramp output

• 1ms Peak hold to capture inrush voltage and current easily

• Temperature test with the option of 0°C compensation

• Frequency, Duty cycle and Pulse width measurements

• Dynamic Recording for MIN/MAX/AVG

• Data Hold with Manual or Auto Trigger and Relative modes

• Diode and Audible Continuity test

• Bi-directional optical computer interface with SCPI commands

• Safe, precise and fast closed-case calibration

• 50,000 count precision True-RMS digital multi-meter and designed to meet IEC-1010

CAT. II 250V standards

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CMM-17 Quick Start V1.2 03/05

SAFETY INFORMATION

A WARNING identifies conditions and actions that may cause hazard(s) to the user;
A CAUTION identifies conditions and actions that may damage this Device.

Table-1 International Electrical Symbols

AC and DC - Alternating and Direct Current

AC - Alternating Current

DC - Direct Current

Ground

Double Insulation

See Explanation In The Manual

To avoid electric shock, injury, or damage to this instrument:

• Read this operation manual completely before using this device and follow all safety
instructions.

• This device is for indoor use, altitude up to 2,000m.

• Avoid working alone.

• Use the device only as specified in this manual; otherwise, the protection provided by the

meter may be impaired.

• Never measure Voltage when the current measurement is selected.

• Do not use this device if it looks damaged.

• Inspect the leads for damaged insulation or exposed metal. Replace damaged leads.

• Disconnect the power and discharge all high-voltage capacitors before testing in the

resistance, continuity, and diode function.

• Use caution when working above 70V DC or 33V RMS and 46.7V peak, these voltages
may cause a shock hazard.

• Always keep your hands behind the protective guard of the probe when measuring.

• Select the proper function and disconnect the test leads from test points before changing

functions.

• Do not mix with different types of batteries. Always use specified battery.

• The meter is safety-certified in compliance with EN61010 (IEC 1010-1, IEC 1010-2-031)

Installation Category ΙΙ 250V Pollution Degree 2.

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CMM-17 Quick Start V1.2 03/05