Textron Greenlee CMP-200 Manuel utilisateur

CMP-200

DIGITAL CLAMP-ON

METER

MEDIDOR DIGITAL

CON PINZA

COMPTEUR

NUMERIQUE A

PINCES

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.

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Description

The Greenlee CMP-200 is a Digital Clamp-on Meter intended to measure true power (watts),

apparent power (volt-amps), reactive power (volt-amps reactive) and power factor in single-

phase and three-phase circuits. It also measures voltage, current and frequency.

Safety

Safety is essential in the use and maintenance of Greenlee tools and equipment. This

instruction manual and any markings on the tool provide information for avoiding hazards and

unsafe practices related to the use of this tool. Observe all of the safety information provided.

Purpose

This instruction manual is intended to familiarize all personnel with the safe operation and

maintenance procedures for the Greenlee CMP-200.

Keep this manual available to all personnel.

Replacement manuals are available upon request at no charge.

and are registered trademarks of Greenlee Textron.

KEEP THIS MANUAL

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CMP-200

Important Safety Information

This symbol is used to call your attention to hazards or unsafe practices which could

result in an injury or property damage. The signal word, defined below, indicates the

severity of the hazard. The message after the signal word provides information for

preventing or avoiding the hazard.

SAFETY ALERT SYMBOL

Immediate hazards which, if not avoided, WILL result in severe injury or death.

Hazards which, if not avoided, COULD result in severe injury or death.

Hazards or unsafe practices which, if not avoided, MAY result in injury or property

damage.

Read and understand this material before operating or servicing

this equipment. Failure to understand how to safely operate this

tool can result in an accident causing serious injury or death.

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Important Safety Information

Electric shock hazard:

• Do not use the unit if it is wet or damaged.

• Use test leads or accessories that are appropriate for the application. See the

category and voltage rating of the test lead or accessory.

• Inspect the test leads or accessory before use. They must be clean and dry, and the

insulation must be in good condition.

Failure to observe these warnings can result in severe injury or death.

Electric shock hazard:

Contact with live circuits can result in severe injury or death.

Electric shock hazard:

• Do not apply more than the rated voltage between any two input terminals, or

between any input terminal and earth ground.

• Do not contact the test lead tips or any uninsulated portion of the accessory.

Failure to observe these warnings can result in severe injury or death.

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CMP-200

Important Safety Information

Do not change the measurement function while the test leads are connected to a

component or circuit.

Failure to observe this precaution can result in injury and can damage the unit.

• Do not attempt to repair this unit. It contains no user-serviceable parts.

• Do not expose the unit to extremes in temperature or high humidity.

See Specifications.

Failure to observe these precautions can result in injury and can damage the unit.

• Do not operate with the case open.

• Before opening the case, remove the test leads (or jaw) from the circuit and shut off

the unit.

Failure to observe these warnings can result in severe injury or death.

Using this unit near equipment that generates electromagnetic interference can result

in unstable or inaccurate readings.

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Glossary

PF Power Factor

ØPhase

WWire

WWatts (True Power)

VA Volt-Amps (Apparent Power)

VAR Volt-Amps Reactive (Reactive Power)

Identification

1. Lever

2. Jaw

3. Hold Button

4. Selector

5. Display

6. READ NEXT Button

7. 3Ø KVAR KVA Button

8. REC Button

9. DC A/W ZERO Button

10. + Terminal

11. COM Terminal

11 10

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CMP-200

Display Icons

12. AC Alternating Current

13. –Polarity Indicator

14. Low Battery

15. 3Ø4W Three-Phase Four-Wire Circuits

16. 3Ø3W Three-Phase Three-Wire Circuits

17. PF Power Factor

18. H Hold

19. REC Indicates that data is stored in memory

20. REC NO. Indicates that stored data is on the display

(1, 2, 3 or 4)

21. 0.0.0.0 Numeric Display

22. Hz Frequency (in Hertz or cycles per second)

23. K Kilo (103)

24. V Volts

25. A Amps

26. R First Phase

27. S Second Phase

28. T Third Phase

29. KW Kilowatt

30. K Kilo (103)

31. V Volts

32. A Amps

OL Overload (not shown)

Symbols on the Unit

Read the instruction manual.

Double Insulation

Battery

23–28

30–32

18 13 21

19–20

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Using the Features

•HOLD Press momentarily to hold the present value on the display and store it in the

memory. Press again to exit this mode.

• DC A/W ZERO Button Sets the meter to zero to eliminate the effects of residual magnetism

when measuring DC current, power and power factor.

• REC Button Press to store data in memory; the CMP-200 has four memory locations. FULL

indicates that all memory locations are in use. Shut the meter off to clear all of the

memories.

• 3Ø KVAR KVA After the 3ø3W or 3ø4W function has finished calculations, press this button

to toggle between power factor (PF)/true power (W) display and reactive power (VAR)/

apparent power (VA) display.

• READ NEXT Button When taking current and voltage measurements from 3Ø3W or 3Ø4W

circuits, use this button for storing data and performing calculations.

When measuring any other value, use this button to recall data stored in the four memory

locations. REC NO. 1 will appear momentarily on the display, followed by the value stored in

the first memory. Change the selector to any position to exit the READ mode.

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CMP-200

*The crest factor is the ratio of the peak value to the RMS value; it is represented by the

Greek letter ξ.

mrofevaW

eulaVSMR 001001001001

eulaVegarevA 090017846

*rotcaFtserC

(ξ)414.1137.12

AC Measurement

AC measurements are usually displayed as RMS

(root mean squared)

values. Two methods of

AC measurement are

average-responding RMS calibrated

and

true RMS-reading.

The average-responding RMS calibrated method takes the average value of the input signal,

multiplies it by 1.11, and displays the result. This method is accurate if the input signal is a

pure sine wave.

The true RMS-reading method uses internal circuitry to read the true RMS value. This method

is accurate, within the specified crest factor limitations, whether the input signal is a pure sine

wave, a square wave, sawtooth, half wave or signal with harmonics. The ability to read true

RMS provides much more measurement versatility. The Greenlee CMP-200 is a true RMS

meter.

The Waveforms and Crest Factors table shows some typical AC signals and their RMS values.

Waveforms and Crest Factors

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Operation

Electric shock hazard:

Contact with live circuits can result in severe injury or death.

1. See the Settings Tables. Set the selector to the proper setting and connect the test leads

to the meter.

2. See the appropriate section for specific measurement instructions and illustrations.

3. Test the unit on a known functioning circuit or component.

•If the unit does not function as expected on a known functioning circuit, replace the

battery and/or fuse.

•If the unit still does not function as expected, send the unit to Greenlee for repair.

4. Take the reading from the circuit or component to be tested.

Measurements on Single-Phase Circuits

Single-Phase Two-Wire Circuits: Settings Table

*A positive (+) PF indicates an inductive load. A negative (–) PF indicates a capacitive load.

If the PF is greater than 0.91 (a phase shift of less than 25°), set the selector to 3Ø3W for a

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