Extech Instruments EX210 Manuale utente

User's Guide

Multimeter with IR Thermometer

Extech EX210

EX210-EU-EN-V2.1-08/102

Introduction

Congratulations on your purchase of the Extech EX210 Autoranging Multimeter. This meter

measures AC/DC Voltage, AC/DC Current, Resistance, Diode Test, and Continuity plus non-

contact InfraRed Temperature. Proper use and care of this meter will provide many years of

reliable service.

Safety

This symbol adjacent to another symbol, terminal or operating device

indicates that the operator must refer to an explanation in the Operating

Instructions to avoid personal injury or damage to the meter.

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.

This symbol advises the user that the terminal(s) so marked must not be

connected to a circuit point at which the voltage with respect to earth

ground exceeds (in this case) 600 VAC or VDC.

This symbol adjacent to one or more terminals identifies them as being

associated with ranges that may, in normal use, be subjected to

particularly hazardous voltages. For maximum safety, the meter and its

test leads should not be handled when these terminals are energized.

This symbol indicates that a device is protected throughout by double

insulation or reinforced insulation.

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

MAX

600V

EX210-EU-EN-V2.1-08/103

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.

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

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

•Warning! This is a Class A device. This device can cause interference in residential

areas.

•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 must not be used by children. It contains hazardous objects as well as

small parts that the children could swallow.

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

dangerous to children.

•In the event that this device will be stored for an extended period of time, remove the

batteries.

•Expired or damaged batteries can be hazardous to skin. Use suitable hand gloves in

such cases.

•Do not short-circuit the battery. Do not place the battery near a fire.

EX210-EU-EN-V2.1-08/104

SAFETY INSTRUCTIONS

This meter has been designed for safe use, but must be operated with caution. The rules

listed below must be carefully followed for safe operation.

1. NEVER apply voltage or current to the meter that exceeds the specified maximum:

Input Protection Limits

Function Maximum Input

V AC/DC, Resistance, Diode Test, Continuity 600 VDC/AC rms

μA or mA AC/DC 200mA fused

A AC/DC 10A fused

2. USE EXTREME CAUTION when working with high voltages.

3. DO NOT measure voltage if the voltage on the "COM" input jack exceeds 600V above

earth ground.

4. NEVER connect the meter leads across a voltage source while the function switch is in

the current, resistance, or diode mode. Doing so can damage the meter.

5. ALWAYS discharge filter capacitors in power supplies and disconnect the power when

making resistance or diode tests.

6. ALWAYS turn off the power and disconnect the test leads before opening the covers to

replace the fuse or batteries.

7. NEVER operate the meter unless the back cover and the battery and fuse covers are in

place and fastened securely.

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

provided by the equipment may be impaired.

EX210-EU-EN-V2.1-08/105

Controls and Jacks

1. IR Thermometer

2. Laser Pointer

3. 2000 count LCD

4. MAX button

5. MODE button

6. FUNCTION switch

7. mA, µA and 10A input jacks

8. IR Thermometer button

9. HOLD button

10. RANGE button

11. Positive input jack

12. COM input jack

Note: Tilt stand, test lead holders, and battery compartment are on rear of unit.

Symbols and Enunciators

Continuity

Diode test

µ micro (10-6) (amps)

m milli (10-3) (volts, amps)

A Amps

k kilo (103) (ohms)

M mega (106) (ohms)

Ω Ohms

V Volts

AC Alternating current

DC Direct current

ºF Degrees Fahrenheit

ºC Degrees Centigrade

MAX Maximum

AUTO Autoranging

HOLD Display hold

SCAN IR temperature in progress

EX210-EU-EN-V2.1-08/106

Operating Instructions

WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are extremely

dangerous and should be measured with great care.

1. ALWAYS turn the function switch to the OFF position when the meter is not in use.

2. If “OL” appears in the display during a measurement, the value exceeds the range you

have selected. Change to a higher range.

AC/DC VOLTAGE MEASUREMENTS

CAUTION: Do not measure DC 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 VAC or VDC 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 the negative side of the circuit.

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

4. Read the voltage in the display.

AC/DC CURRENT MEASUREMENTS

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

2. Press the MODE button to indicate “DC” or “AC” on the display.

3. For current measurements up to 2000µA, set the function switch to the µA

position and insert the red test lead banana plug into the µA/mA jack.

4. For current measurements up to 200 mA DC, set the function switch to the

mA position and insert the red test lead banana plug into the µA/mA jack.

5. For current measurements up to 10A DC, set the function switch to the 10A

position and insert the red test lead banana plug into the 10A jack.

6. Connect the test leads in series with the circuit under test.

7. Apply power to the circuit.

8. Read the current in the display.

EX210-EU-EN-V2.1-08/107

RESISTANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test and

discharge all capacitors before taking any resistance measurements. Remove the

batteries and unplug the line cords.

1. Rotate the function switch to the Ωposition.

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

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

3. Touch the test probe tips across the device under test.

4. Read the resistance in the display.

CONTINUITY CHECK

WARNING: To avoid electric shock, never measure continuity on circuits or wires that

have a voltage potential.

1. Rotate the function switch to the position.

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

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

3. Press the MODE button to indicate“ "on the display

4. Touch the test probe tips to the circuit or wire you wish to check.

5. If the resistance is less than the continuity threshold, the audible signal will

sound.

DIODE TEST

1. Rotate the function switch to the green position.

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

red test lead banana plug into the positive jack.

3. Press the MODE button to indicate “ “and “V” on the display.

4. Touch the test probes to the diode under test. Forward voltage will

typically indicate 0.400 to 0.700V. Reverse voltage will indicate “OL”.

Shorted devices will indicate near 0V and an open device will indicate

“OL” in both polarities.

EX210-EU-EN-V2.1-08/108

NON-CONTACT INFRARED TEMPERATURE MEASUREMENTS

1. Rotate the function switch to the IR position. The upper right four digit temperature

display will switch on.

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

3. Aim the infrared sensor (top of meter) at the surface to be measured.

4. Press and Hold the IRT button to turn on the IR thermometer and laser pointer.

The laser pointer identifies the surface spot to be measured and “SCAN” will flash in

the display.

5. Read the temperature in the display.

6. The area of the surface to be measured must be larger than the spot size as

determined by the distance to spot size values listed in the specification table.

7. Release the IRT button to turn the IR thermometer and laser pointer off. “HOLD”

and the final measured value will remain in the display.

WARNING: Do not directly view or direct the laser pointer at an eye. Low power

visible lasers do not normally present a hazard, but may present some potential for hazard

if viewed directly for extended periods of time.

IR Spot to Distance Diagram

The 4:1 spot to distance ratio determines the size of the measured surface area with

respect to the distance the meter is held away from the surface.

IR Measurement Notes

1. The object under test should be larger than the spot (target) size calculated by the

field of view diagram.

2. If the surface of the object under test is covered with frost, oil, grime, etc., clean

before taking measurements.

3. If an object's surface is highly reflective, apply masking tape or flat black paint to the

surface before measuring.

4. The meter will not make measurements through glass steam, dust, and smoke.

5. To find a hot spot, aim the meter outside the area of interest then scan across (in an

up and down motion) until the hot spot is located.

1”

@4”

2”

@8”

4”

@16”

20mm

@ 80mm 40mm

@ 160mm 80mm

@ 320mm

EX210-EU-EN-V2.1-08/109

AUTORANGING/MANUAL RANGE SELECTION

When the meter is first switched on, it automatically enters the AutoRanging mode. This

automatically selects the best range for the measurements being made and is generally

the best mode for most measurements. For measurement situations requiring that a range

be manually selected, perform the following:

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

2. Press the RANGE key to step through the available ranges until the range desired is

selected.

3. Press and hold the RANGE button for 2 seconds to exit manual ranging.

Note: Manual ranging does not apply to the Temperature, Diode and Continuity functions.

MAX (MAXIMUM READING) MODE

1. Press the MAX button to activate the MAX mode. The display icon "MAX" will appear.

The meter will display and hold the maximum reading and will update only when a new

maximum value is detected.

2. Press the MAX button again to exit the mode.

Note: Max does not apply to the Resistance, Diode and Continuity functions.

DISPLAY BACKLIGHT

Press and hold the IRT button for 2 second to turn the backlight on. The backlight

will automatically turn off after approximately 10 seconds or press and hold the button

again for 2 seconds to manually turn it off.

HOLD

The HOLD function freezes the reading in the display. Press the HOLD button momentarily

to activate or to exit the HOLD function.

Note: The HOLD button does not function in the IR measurement mode.

AUTO SLEEP

If no button is pressed the auto sleep feature will place the meter in sleep mode after

approximately 15 minutes of operation. If this happens, press any button to wake the meter

or switch the meter to OFF if it no longer in use.

EX210-EU-EN-V2.1-08/1010

Maintenance

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage

before removing the back cover or the battery or fuse covers.

WARNING: To avoid electric shock, do not operate the meter until the battery and fuse

covers are in place and fastened securely.

This MultiMeter is designed to provide years of dependable service, if the following care

instructions are followed:

1. KEEP THE METER DRY. If it gets wet, wipe it off.

2. USE AND STORE THE METER IN NORMAL TEMPERATURES. Temperature

extremes can shorten the life of the electronic parts and distort or melt plastic parts.

3. HANDLE THE METER GENTLY AND CAREFULLY. Dropping it can damage the

electronic parts or the case.

4. KEEP THE METER CLEAN. Wipe the case occasionally with a damp cloth. DO NOT

use chemicals, cleaning solvents, or detergents.

5. USE ONLY FRESH BATTERIES OF THE RECOMMENDED SIZE AND TYPE. Remove

old or weak batteries so they do not leak and damage the unit.

6. IF THE METER IS TO BE STORED FOR A LONG PERIOD OF TIME, the batteries

should be removed to prevent damage to the unit.

BATTERY and FUSE Replacement

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage

before removing the battery cover.

1. Turn power off and disconnect the test leads from the meter.

2. Open the rear battery/fuse compartment by removing the Phillips head screw on the

lower rear of the meter. .

3. Pull down on the cover to release the latch and then lift it off.

4. Remove the old battery or fuse and install a new one of the correct rating.

5. Place the battery/fuse cover back in place. Secure with the screw.

WARNING: To avoid electric shock, do not operate the meter until the battery cover is in

place and fastened securely.

NOTE: If the meter does not work properly, check the fuses and replace the battery to make

sure that they are still good and that they are properly inserted.

You, as the end user, are legally bound (EU Battery ordinance) to return all

used batteries, disposal in the household garbage is prohibited! You can

hand over your used batteries / accumulators at collection points in your

community or wherever batteries / accumulators are sold!

Disposal: Follow the valid legal stipulations in respect of the disposal of the

device at the end of its lifecycle

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