Extech Instruments EX710 Manuale utente

User's Guide

800 Amp AC Clamp Meter

Model EX710

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

EX710-EU-EN-V3.2-3/12

Introduction

Congratulations on your purchase of the EX710 Clamp DMM. Careful use of this meter will provide

many 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

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.

UL Note

A UL mark does not indicate that this product has been evaluated for accuracy.

Function Maximum Input

A AC 800A AC

V DC, V AC 600V DC/AC

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

EX710-EU-EN-V3.2-3/12

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.

•This device is not a toy and must not reach children’s hands. It contains hazardous objects as

well as small parts that the children could swallow. In case a child swallows any of them,

please contact a physician immediately

•Do not leave batteries and packing material lying around unattended; they can be dangerous

for children if they use them as toys

•In case the device is going to be unused for an extended period of time, remove the batteries

to prevent them from training

•Expired or damaged batteries can cause cauterization on contact with the skin. Always,

therefore, use suitable hand gloves in such cases

•See that the batteries are not short-circuited. Do not throw batteries into the fire.

EX710-EU-EN-V3.2-3/12

Description

Meter Description

1. Current clamp

2. Clamp opening trigger

3. Control buttons:

•Data Hold

•Mode

•Peak

•Backlight

4. Backlit LCD Display

5. COM negative input jack for black test lead

6. Rotary function switch

7. V·Ω·CAP·TEMP·Hz· positive input jack for red lead

Display icons Description

HOLD Data Hold

Minus sign Negative reading display

0 to 3999 Measurement display digits

PEAK Peak capture

AUTO Auto Range mode

DC/AC Direct Current / Alternating Current

BAT Low battery

mV or V Milli-volts or Volts (Voltage)

ΩOhms (Resistance)

A Amperes (Current)

F Farad (Capacitance)

Hz Hertz (Frequency)

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

•))) Continuity test

Diode test

EX710-EU-EN-V3.2-3/12

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.

AC Current Measurements

WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements.

1. Set the Function switch to the 800A, 400A, or

40A range. If the approx. range of the

measurement is not known, select the highest

range then move to the lower ranges if

necessary.

2. Press the trigger to open jaw. Fully enclose only

one conductor. For optimum results, center the

conductor in the jaw.

3. The clamp meter LCD will display the reading.

AC/DC Voltage Measurements

1. Insert the black test lead into the negative COM terminal and the red test

lead into the positive V·Ω·CAP·Hz · terminal.

2. Set the function switch to the V Hz position.

3. Use the MODE button to select AC or DC Voltage.

4. Connect the test leads in parallel to the circuit under test.

5. Read the voltage measurement on the LCD display.

Correct Incorrect

EX710-EU-EN-V3.2-3/12

Resistance Measurements

1. Insert the black test lead into the negative COM terminal and the red test lead

into the V·Ω·CAP·Hz· positive terminal.

2. Set the function switch to the Ω position.

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

4. Read the resistance on the LCD display.

Capacitance Measurements

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

1. Set the function switch to the CAP position.

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

test lead banana plug into the V·Ω·CAP·Hz· positive jack.

3. Touch the test probe tips across the part under test. If “dISC” appears in the

display, remove and discharge the component.

4. Read the capacitance value in the display.

5. The display will indicate the proper decimal point and value.

Note: For very large values of capacitance measurement it can take several minutes

before the final reading stabilizes.

Frequency Measurements

1. Insert the black test lead banana plug into the negative COM jack and the red

test lead banana plug into the V·Ω·CAP·Hz· positive jack.

2. Set the function switch to the VHz Position.

3. Press and hold the MODE button to select the Frequency (Hz) function. “k Hz”

will appear in the display.

4. Touch the test probe tips across the part under test.

5. Read the Frequency value on the display.

6. The display will indicate the proper decimal point and value.

7. Press and hold the MODE button again to return to the voltage mode.

CAP

EX710-EU-EN-V3.2-3/12

Continuity Measurements

1. Insert the black test lead into the negative COM terminal and the red test lead into the

V·Ω·CAP·Hz· positive terminal.

2. Set the function switch to the •)))position.

3. Use the MODE button to select continuity “•)))”. The display icons will change when the MODE

button is pressed.

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

5. If the resistance is < 40Ω, a tone will sound.

Diode Test

1. Insert the black test lead banana plug into the negative COM jack and the red test lead banana

plug into the V·Ω·CAP·Hz· positive jack

2. Turn the function switch to position. Use the MODE button to select the diode function if

necessary (diode symbol will appear on the LCD when in Diode test mode)

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

reading

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

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

•If one reading displays a value (typically 0.400V to 0.900V) 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.

EX710-EU-EN-V3.2-3/12

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.

Peak Hold

The Peak Hold function captures the peak AC or DC voltage or current. The meter can capture

negative or positive peaks as fast as 1 millisecond in duration.

1. Turn the function switch to the A or V position.

2. Allow time for the display to stabilize.

3. Press and Hold the PEAK button until “CAL” appears in the display. This procedure will zero

the range selected.

4. Press the PEAK button, Pmax will display.

5. The display will update each time a higher positive peak occurs.

6. Press the PEAK button again, Pmin will display. The display will now update and indicate the

lowest negative peak.

7. To return to normal operation, press and hold the PEAK button until the Pmin or Pmax

indicator switches off.

Note: If the Function switch position is changed after a calibration the Peak Hold calibration must

be repeated for the new function selected.

LCD Backlight Button

The LCD is equipped with backlighting. Press the backlight button to turn the backlight on. Press

again to turn the backlight off.

Automatic Power OFF

In order to conserve battery life, the meter will automatically turn off after approximately 25 minutes.

To turn the meter on again, turn the function switch to the OFF position and then to the desired

function position.

EX710-EU-EN-V3.2-3/12

Specifications

Accuracy (% of reading + digits)

Function Range &

Resolution

40.00A AC ± (2.8% + 10d)

400.0A AC ± (2.8% + 8d)

AC Current

50/60 Hz

800A AC ± (3.0% + 8d)

400.0mV AC ± (1.5% + 10d)

4.000V AC

40.00V AC

400.0V AC

± (1.8% + 8d)

AC Voltage

50/60Hz

600V AC ± (2.5% + 8d)

400.0mV DC ± (0.8% + 2d)

4.000V DC

40.00V DC

400.0V DC

± (1.5% + 2d)

DC Voltage

600V DC ± (2.0% + 2d)

400.0Ω± (1.0% + 4d)

4.000kΩ

40.00kΩ

400.0kΩ

± (1.5% + 2d)

4.000MΩ± (2.5% + 3d)

Resistance

40.00MΩ± (3.5% + 5d)

4.000nF ± (5.0% + 30d)

40.00nF ± (5.0% + 20d)

400.0nF

4.000µF

40.00µF

± (3.0% + 5d)

400.0µF ± (4.0% + 10d)

4.000mF ± (10% + 10d)

Capacitance

40.00mF unspecified

4.000kHz ± (1.5% + 2d)

Frequency Sensitivity: 100V (<50Hz); 50V (50 to 400Hz); 5V (401 to 4000Hz)

EX710-EU-EN-V3.2-3/12

General Specifications

Clamp jaw opening 30mm (1.2") approx.

Display 3-3/4 digits (4000 counts) backlit LCD

Continuity check Threshold 40Ω; Test current < 0.5mA

Diode test Test current of 0.3mA typical;

Open circuit voltage < 3VDC typical

Low Battery indication ‘BAT’ is displayed

Over-range indication ‘OL’ display

Measurement rate 2 readings per second, nominal

PEAK Captures peaks >1ms

Input Impedance 10MΩ(VDC and VAC)

AC bandwidth 50 to 400Hz (AAC and VAC)

Operating Temperature 5

oC to 40oC (41oF to 104oF)

Storage Temperature -20oC to 60oC (-4oF to 140oF)

Operating Humidity Max 80% up to 31oC (87oF) decreasing linearly to 50% at 40oC

(104oF)

Storage Humidity <80%

Operating Altitude 2000meters (7000ft). maximum.

Battery One (1) 9V Battery

Auto power OFF After approx. 25 minutes

Dimensions & Weight 229 x 80 x 49mm (9.0 x 3.1 x 2.0"); 303g (10.7 oz).

Safety For indoor use and in accordance with the requirements for double

insulation to IEC1010-1 (2001): EN61010-1 (2001) Overvoltage

Category III 600V and Category II 1000V, Pollution Degree 2.

Indice

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