Greenlee CMT-60 Bedienungsanleitung

CMT-60

CLAMP-ON METER

MEDIDOR CON

PINZA

COMPTEUR 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 esta herramienta

o darle 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.

Description

The Greenlee CMT-60 Digital Clamp-on Meter is a hand-held testing device

with the following measurement capabilities: AC and DC voltage, AC current,

and resistance. It also verifies continuity.

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 CMT-60 Digital

Clamp-on Meter.

Keep this manual available to all personnel.

Replacement manuals are available upon request at no charge.

Greenlee and are registered trademarks of Greenlee Textron.

KEEP THIS MANUAL

CMT-60

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 and fire hazard:

• Do not expose this unit to rain or moisture.

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

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

the insulation must be in good condition.

• Use this unit for the manufacturer’s intended purpose only, as

described in this manual. Any other use can impair the protection

provided by the unit.

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.

CMT-60

Important Safety Information

• 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.

• 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 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.

• Unless measuring voltage or current, shut off and lock out power.

Make sure that all capacitors are discharged. Voltage must not be

present.

• Using this unit near equipment that generates electromagnetic

interference can result in unstable or inaccurate readings.

Identification

1. Jaw

2. Lever

3. Display

4. Selector

5. Common (COM) test lead

6. Positive test lead for voltage

and resistance (V-Ω)

7. Hold button

2 2

5 6

Display Icons

8. Hold Function

is enabled

9. Continuity

10. Low Battery

Symbols on the Unit

Warning—Read the instruction manual

Double insulation

CMT-60

Operation

1. See the Settings Table. Set the selector to the proper setting.

2. See Typical Measurements for specific measurement instructions.

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.

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

for repair. See the address shown under Warranty.

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

Note: Press the HOLD button to hold the present measurement on the

display; press again to return to the normal display mode

Settings Table

To measure this set the selector to a measurement range

characteristic … indicated by this symbol …

AC Current A

AC Voltage V

DC Voltage V

Continuity*

Resistance

*Refer to the Accuracy section for tone indications.

Typical Measurements

Clamp Around Wire

Notes:

• Clamp the jaw around one conductor only.

• Close the jaw completely to ensure

accurate measurement.

• Center the wire in the jaw for highest

accuracy.

Clamp Around Line Splitter

Notes:

• The Greenlee 93-30 Line Splitter is divided.

One section renders amps; the other

renders amps multiplied by 10.

• Close the jaw completely to ensure

accurate measurement.

• Center the line splitter in the jaw for highest

accuracy.

CMT-60

Typical Measurements

Voltage Measurement

Resistance

Measurement

Continuity

Check

Accuracy

See the Specifications section for operating conditions and temperature

coefficient.

Accuracy is specified as follows: ±(a percentage of the reading + a fixed

amount) at 23 °C ±5 °C (73.4 °F ±9 °F), 0% to 80% relative humidity.

Accuracy Table

Characteristic Range Accuracy Frequency Range

AC Current 0 to 200.0 A ±(2% + 0.3 A) 50 to 60 Hz

AC Voltage* 0 to 600 V ±(1.5% + 3 V) 40 to 500 Hz

DC Voltage* 0 to 600 V ±(1% + 2 V) N/A

Resistance** 0 to 2000 Ω±(1% + 2 Ω)N/A

*Input impedance: 1.6 MΩ, 100 pF nominal

**Open circuit voltage: 3 V nominal

Continuity

Tone on: Circuit resistance is ≤25 Ω(approximately).

Tone off: Circuit resistance is ≥400 Ω(approximately).

Specifications

Display: 3-1/2-digit LCD

Maximum Conductor Size: 22 mm (0.87")

Sampling Rate: 2.5 per second

Automatic Power Off: After approximately 30 minutes

Temperature Coefficient: 0.2 x (Accuracy) per °C below 18 °C or above 28 °C

Overvoltage Protection Categories:

V-ΩTerminal: Category III, 600 VAC and 600 VDC

COM Terminal: Category III, 600 VAC and 600 VDC

Jaws: Category III, 600 VAC and 600 VDC

Operating Conditions:

0 °C to 30 °C (32 °F to 86 °F), 0% to 80% relative humidity

30 °C to 40 °C (86 °F to 104 °F), 0% to 75% relative humidity

40 °C to 50 °C (104 °F to 122 °F), 0% to 45% relative humidity

Indoor use only

Storage Conditions: –20 °C to 60 °C (–4 °F to 140 °F),

0% to 80% relative humidity

Remove battery

Elevation: 2000 m (6500') maximum

Pollution Degree: 2

Battery: 9 V battery (NEDA 1604, JIS 006P or IEC 6F22)

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