Greenlee CMGL-10 Bedienungsanleitung

CMGL-10

CLAMP-ON AMMETER

AND LEAKAGE

CURRENT DETECTOR

AMPERÍMETRO

CON PINZA Y

DETECTOR DE

CORRIENTE DE FUGA

PINCE

AMPEREMETRIQUE

ET DETECTEUR DE

FUITE DE COURANT

ZERO

MAX/MIN

HOLD

40mA

COM V Ω

400mA 4A 40A

60A

OFF

Ω

WIDE

50/60 Hz

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.

INSTRUCTION MANUAL

MANUAL DE INSTRUCCIONES

MANUEL D’INSTRUCTIONS

Description

The Greenlee CMGL-10 Clamp-on Ammeter and Leakage Current Detector is a hand-held

testing device with the following measurement capabilities: AC voltage, AC current, and

resistance. The unit is also intended to verify continuity.

Much more sensitive than most clamp-on ammeters, the CMGL-10 can detect very small

amounts of current that may indicate that some current is leaking to ground.

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 CMGL-10 Clamp-on Ammeter and Leakage Current

Detector.

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

CMGL-10

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.

Important Safety Information

Electric shock hazard:

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

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. The item(s) 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:

• 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.

• 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.

CMGL-10

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 instrument.

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

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

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

Unless measuring voltage or current, shut off and lock out power. Make sure that all

capacitors are discharged. Voltage must not be present.

Set the selector and connect the test leads so that they correspond to the intended

measurement. Incorrect settings or connections can result in a blown fuse.

Using this unit near equipment that generates electromagnetic interference can result

in unstable or inaccurate readings.

Identification

1. Jaw

2. Lever

3. ZERO Button

4. Display

5. VΩTerminal

6. COM Terminal

7. MAX/MIN Button

8. Frequency Filter Switch

9. HOLD Button

10. Selector

ZERO

MAX/MIN

HOLD

40mA

COM V Ω

400mA 4A 40A

60A

OFF

Ω

1234

78910

WIDE

50/60 Hz

CMGL-10

Display Icons

11. MAN Manual Ranging

12. - Polarity for Numeric Display

13. AC AC measurement is selected

14. Low Battery

15. ZERO ∆Relative Zero function is enabled

16. HOLD Hold Function is enabled

17. MAX MAX hold function is enabled

18. MIN MIN hold function is enabled

19. Continuity

20. V Volts

21. A Amps

22. M Mega (106)

23. k Kilo (103)

24. ΩOhms

25. Overload for Bar Graph

26. Bar Graph Element

27. - Polarity Indicator for Bar Graph

Symbols on the Unit

Read the instruction manual

Double Insulation

ZERO ∆

MAN

HOLD MAX MIN

MkΩ

100203040

14 15 16 17 18 19

20,21

26 2527

22,23,24

Using the Features

Automatic Power Off To extend battery life, the meter will shut itself off after approximately

30 minutes of inactivity. The only way to restore power is to press

HOLD. To disable this feature, press HOLD while turning the meter on.

MAX/MIN Holds the minimum or maximum value on the display. Press once to

hold the minimum value; press again to hold the maximum value.

Press again to exit this mode.

ZERO Finds the difference between two measurements. While taking a

measurement, press ZERO to set the display to zero. ZERO ∆will

appear on the display. Take the second measurement. The value on the

display will be the difference between the two measurements. Press

and hold to exit this mode.

HOLD Press momentarily to hold the present value on the display. Press

again to exit this mode.

Frequency Filter Filters out unwanted harmonics and other unwanted signals, which

can interfere with measurements. To prevent this type of interference,

select the 50/60 Hz position; the filter will limit any signals that are

higher than 100 Hz.

To measure higher frequency signals, select the WIDE position.

CMGL-10

Operation

1. Set the selector according to the Settings Table and connect the test leads to the unit.

Start with the highest measurement range.

Settings Table

Electric shock hazard:

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

To measure set the this icon will connect the and the

this value … selector to appear on red lead black lead

this symbol … the display … to … to …

AC Voltage VAC and V VΩCOM

AC Current * 40 mA, 400 mA, AC and A or N/A N/A

4 A, 40A or 60 A AC and mA

Resistance Ωand ΩVΩCOM

Continuity ** Ωand ΩVΩCOM

* To measure current draw, clamp the jaw around one conductor only. The display will show

the current draw. To measure leakage, clamp the jaw around all of the conductors (except the

ground wire). Any reading other than zero amps indicates that some current is leaking to

ground. For a precise measurement of the amount of leakage, clamp the jaw around the

ground conductor only. See the illustrations under Typical Measurements.

** Tone indicates circuit resistance is less than approximately 40 Ω.

2. See Typical Measurements for illustrations of typical uses.

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

batteries.

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

4. Take the reading from the circuit to be tested. If the resolution is not satisfactory, remove

the meter from the circuit and change to the next lower range.

Typical Measurements

Current Measurement

Voltage Measurement

ZERO

MAX/MIN

HOLD

40mA

COM V Ω

400mA 4A 40A

60A

OFF

Ω

WIDE

50/60 Hz

ZERO

MAX/MIN

HOLD

40mA

COM V Ω

400mA 4A 40A

60A

OFF

Ω

WIDE

50/60 Hz

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