FLIR EXTECH MA620 Manuel utilisateur

User's Guide

600Amp AC True RMS Clamp Meter

Model MA620

www.ponpe.com

contact:

[email protected]

MA620 V2.1 07/08

Introduction

Congratulations on your purchase of this Extech MA640 True RMS Clamp Meter. This meter

measures AC Current, AC/DC Voltage, Resistance, Capacitance, Frequency, Diode Test,

Duty Cycle and Continuity. Special features include Thermocouple Temperature and Non-

Contact Voltage detection. The double molded case is designed for heavy duty use. This

meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable

service.

Safety

International Safety Symbols

This symbol, adjacent to another symbol or terminal, indicates the user

must refer to the manual for further information.

This symbol, adjacent to a terminal, indicates that, under normal use,

hazardous voltages may be present

Double insulation

This WARNING symbol indicates a potentially hazardous situation, which

if not avoided, could result in death or serious injury.

This CAUTION symbol indicates a potentially hazardous situation, which

if not avoided, may result damage to the product.

PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY

OVERVOLTAGE CATEGORY I

Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in

which measures are taken to limit the transient overvoltages to an appropriate low level.

Note – Examples include protected electronic circuits.

OVERVOLTAGE CATEGORY II

Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be

supplied from the fixed installation.

Note – Examples include household, office, and laboratory appliances.

OVERVOLTAGE CATEGORY III

Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.

Note – Examples include switches in the fixed installation and some equipment for industrial

use with permanent connection to the fixed installation.

OVERVOLTAGE CATEGORY IV

Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.

Note – Examples include electricity meters and primary over-current protection equipment

WARNING

CAUTION

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MA620 V2.1 07/08

SAFETY NOTES

•Do not exceed the maximum allowable input range of any function.

•Do not apply voltage to meter when resistance function is selected.

•Set the function switch OFF when the meter is not in use.

•Remove the battery if meter is to be stored for longer than 60 days.

WARNINGS

•Set function switch to the appropriate position before measuring.

•When measuring volts do not switch to current/resistance modes.

•Do not measure current on a circuit whose voltage exceeds 600V.

•When changing ranges always disconnect the test leads from the circuit under test.

CAUTIONS

•Improper use of this meter can cause damage, shock, injury or death. Read and

understand this user manual before operating the meter.

•Always remove the test leads before replacing the battery or fuses.

•Inspect the condition of the test leads and the meter itself for any damage before

operating the meter. Repair or replace any damage before use.

•Use great care when making measurements if the voltages are greater than 25VAC

rms or 35VDC. These voltages are considered a shock hazard.

•Always discharge capacitors and remove power from the device under test before

performing Diode, Resistance or Continuity tests.

•Voltage checks on electrical outlets can be difficult and misleading because of the

uncertainty of connection to the recessed electrical contacts. Other means should be

used to ensure that the terminals are not "live".

•If the equipment is used in a manner not specified by the manufacturer, the protection

provided by the equipment may be impaired.

Function Maximum Input

A AC 600A DC/AC

V DC, V AC 600V DC/AC

Resistance, Capacitance, Frequency, Diode Test 250V DC/AC

Type K Temperature 30V DC, 24V AC

250V DC/AC

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MA620 V2.1 07/08

Description

Meter Description

1. Current clamp

2. Clamp opening trigger

3. Hx % Button

4. MODE Button

5. LCD Display

6. Common Input jack

7. NCV sensor

8. NCV LED indicator

9. HOLD/BACKLIGHT Button and FUNCTION switch

10. RANGE Button

11. MAX-MIN Button

12. RELATIVE Button

13. Battery compartment (rear)

14. Positive Input jack

Display icons Description

HOLD Data Hold

AUTO Autoranging

DC Direct Current

AC Alternating Current

MAX Max reading

MIN Min reading

Low battery

REL Relative

V Volts (Voltage)

ΩOhms (Resistance)

A Amperes (Current)

F Farad (Capacitance)

Hz Hertz (Frequency)

% Duty Ratio

oF and oC Fahrenheit and Celsius units (Temperature)

n, m, μ, M, k Unit of measure prefixes: nano, milli, micro, mega, and kilo

•))) Continuity test

Diode test

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contact:

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MA620 V2.1 07/08

Operation

NOTES: Read and understand all Warning and Caution statements in this operation

manual prior to using this meter. Set the function select switch to the OFF position when

the meter is not in use.

Non-Contact Voltage Detector

WARNING: Risk of Electrocution. Before use, always test the Voltage Detector on a

known live circuit to verify proper operation.

1. Rotate the Function switch to any measurement

position.

2. Place the detector probe tip on the conductor to be

tested.

3. If AC voltage is present, the NCV detector light will

turn on with a steady red light.

NOTE: The conductors in electrical cord sets are often

twisted. For best results, move the probe tip along

a length of the cord to assure placing the tip in close proximity to the live conductor.

NOTE: The detector is designed with high sensitivity. Static electricity or other sources of

energy may randomly trip the sensor. This is normal operation.

AC Current Measurements

WARNING: Disconnect the test leads before making clamp measurements.

1. Rotate the Function switch to the

600A AC position

2. Press the trigger to open jaw. Fully

enclose only one conductor.

3. Read the current value in the display.

4. If the value is less than 60A, rotate

the function switch to the 60A position

to improve resolution.

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contact:

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MA620 V2.1 07/08

AC/DC Voltage Measurements

CAUTION: Do not measure voltages if a motor on the circuit is being switched ON or

OFF. Large voltage surges may occur that can damage the meter.

1. Rotate the function switch to the V position.

2. Press the MODE button to select AC or DC Voltage.

3. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive Vjack.

4. Touch the black test probe tip to the negative side of the circuit.

Touch the red test probe tip to the positive side of the circuit.

5. Read the voltage value in the display.

Resistance Measurements

Note: Remove power from the device under test before making resistance measurements

1. Rotate the function switch to the Ω position.

2. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive Vjack.

3. Touch the black test probe tip to one side of the device.

Touch the red test probe tip to the other side of the device.

4. Read the resistance value in the display.

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contact:

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MA620 V2.1 07/08

Continuity Test

1. Rotate the function switch to the •))) position.

2. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive Vjack.

3. Press the MODE button to select continuity •))).

4. Touch the black test probe tip to one side of the device.

Touch the red test probe tip to the other side of the device..

5. Touch the test probe tips across the circuit or component under test.

6. If the resistance is < 60Ω, a tone will sound.

Diode Test

1. Rotate the function switch to the position.

2. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive Vjack

3. Press the MODE button to select diode test .

4. Touch the test probe tips to the diode or semiconductor junction under test. Note the

meter reading.

5. Reverse the test lead polarity by reversing the red and black leads. Note this reading.

6. The diode or junction can be evaluated as follows:

If one reading displays a value (typically 0.400V to 01.800V) and the other

reading displays OL, the diode is good.

If both readings display OL the device is open.

If both readings are very small or ‘0’, the device is shorted.

Capacitance Measurements

WARNING: To avoid electric shock, discharge the capacitor before measuring.

1. Rotate the function switch to the CAP position.

2. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive jack.

3. Touch the black test probe tip to one side of the device.

Touch the red test probe tip to the other side of the device.

4. Read the capacitance value in the display.

Note: For very large values of capacitance measurement time can be

several seconds before the final reading stabilizes.

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contact:

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MA620 V2.1 07/08

Frequency and Duty Ratio Measurements

1. Rotate the function switch to the Hz Position.

2. Press the MODE button to select AC Voltage

3. Press the HZ % button to select HZ

4. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive Hz jack.

5. Touch the black test probe tip to one side of the device.

Touch the red test probe tip to the other side of the device.

6. Read the Frequency value on the display.

7. Press the HZ % button to select %

8. Read the Duty Ratio on the display.

Type K Temperature Measurements

1. Rotate the function switch to the Temp position.

2. Press the MODE button to select °F or °C.

3. Insert the Temperature Probe into the input jacks.

4. Place the temperature probe tip where needed.

5. Read the temperature on the display.

Note: In case of an open input or a temperature overrange, the meter

will display “OL”.

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contact:

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MA620 V2.1 07/08

Data Hold

To freeze the LCD reading, press the HOLD button. While data hold is active, the HOLD

icon appears on the LCD. Press the HOLD button again to return to normal operation.

MAX/MIN

1. Press the MAX/MIN button to activate the MAX/MIN recording mode. The display icon

"MAX" will appear. The meter will begins recording and displaying the maximum

value measured.

2. Press the MAX/MIN button and “MIN” will appear. The meter will display the minimum

value measured during the recording session.

3. To exit MAX/MIN mode press and hold the MAX/MIN button for 2 seconds.

RANGE

In the Voltage, Resistance, Frequency or Temperature function the meter automatically

selects the best range for the measurements being made. For measurement situations

requiring that a range be manually selected, perform the following:

1. Press the RANGE button. The “AUTO” display icon will turn off.

2. Press the RANGE key to step through the available ranges. Observe the decimal

point and units displayed until the preferred range is located.

3. To exit the Manual Ranging mode and return to Autoranging, press and hold the

RANGE key for 2 seconds.

LCD Backlight

The LCD is equipped with backlighting for easier viewing, especially in dimly lit areas.

Press and hold the HOLD/ button for 2 seconds to turn the backlight on. The backlight

will automatically turn off after 5 seconds.

Automatic Power OFF

In order to conserve battery life, the meter will automatically turn off after approximately 15

minutes of operation. The meter will beep shortly before the meter shuts off. If a button is

pressed, the APO timer will reset. If the meter is allowed to shut off, turn the function

switch to the OFF position and then to the function again to restart.

Low battery indication

When the icon appears in the display, the battery should be replaced. Refer to the

battery replacement procedure in the maintenance section.

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contact:

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MA620 V2.1 07/08

Maintenance

WARNING: To avoid electrical shock, disconnect the meter from any circuit, remove the

test leads from the input terminals, and turn OFF the meter before opening the case. Do

not operate the meter with an open case.

Cleaning and Storage

Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or

solvents. If the meter is not to be used for 60 days or more, remove the battery and store it

separately.

Battery Replacement

1. Remove the Phillips head screws that secures the rear battery door

2. Open the battery compartment

3. Replace the 9V battery

4. Secure the battery compartment door

Warranty

EXTECH INSTRUMENTS CORPORATION(a FLIR company) warrants this instrument to be free

of defects in parts and workmanship for one year from date of shipment (a six month limited

warranty applies to sensors and cables). If it should become necessary to return the instrument for

service during or beyond the warranty period, contact the Customer Service Department at (781)

890-7440 ext. 210 for authorization or visit our website www.extech.com for contact information. A

Return Authorization (RA) number must be issued before any product is returned to Extech. The

sender is responsible for shipping charges, freight, insurance and proper packaging to prevent

damage in transit. This warranty does not apply to defects resulting from action of the user such as

misuse, improper wiring, operation outside of specification, improper maintenance or repair, or

unauthorized modification. Extech specifically disclaims any implied warranties or merchantability

or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or

consequential damages. Extech's total liability is limited to repair or replacement of the product.

The warranty set forth above is inclusive and no other warranty, whether written or oral, is

expressed or implied.

Calibration and Repair Services

Extech offers repair and calibration services for the products we sell. Extech also

provides NIST certification for most products. Call the Customer Care Department for

information on calibration services available for this product. Extech recommends that

annual calibrations be performed to verify meter performance and accuracy.

www.ponpe.com

contact:

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