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Extech Multimeter EX540

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User's Guide

Wireless TRMS Multimeter

Model EX540

2 EX540-EU-EN V1.4-3/11

Introduction

This meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency

(electrical & electronic), Duty Cycle, Diode Test, and Continuity plus Thermocouple

Temperature. It can store and recall data. It features a waterproof, rugged design for heavy

duty use. This meter can transmit data wirelessly when linked to a PC. 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) 1000 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

1000V

3 EX540-EU-EN V1.4-3/11

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 DC or V AC 1000VDC/AC rms

mA AC/DC 500mA 1000V fast acting fuse

A AC/DC 10A 1000V fast acting fuse (20A for 30 seconds

max every 15 minutes)

Frequency, Resistance, Capacitance,

Duty Cycle, Diode Test, Continuity 1000VDC/AC rms

Temperature 1000VDC/AC rms

Surge Protection: 8kV peak per IEC 61010

2. USE EXTREME CAUTION when working with high voltages.

3. DO NOT measure voltage if the voltage on the "COM" input jack exceeds 1000V 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.

Produktspecifikationer

Varumärke:	Extech
Kategori:	Multimeter
Modell:	EX540
Typ av operation:	Hefboom
Färg på produkten:	Zwart, zilver
Vikt:	1535 g
Bredd:	255 mm
Djup:	158 mm
Höjd:	240 mm
Vattennivåindikator:	Ja
Husmaterial:	Kunststof
Avtagbart filter:	Ja
Kraftkälla:	AC
Tillgångar:	2400 W
På / Av knapp:	Ja
Vattentankens kapacitet:	1.7 l
Automatisk avstängning:	Ja
Sladdförvaring:	Ja
Dolt värmeelement:	Ja
Justerbar termostat:	Nee
Överhettningsskydd:	Ja
Filtrering:	Ja
Trådlös:	Ja
Torrkokningsskydd:	Ja
Bas med 360 graders rotationsvinkel:	Ja
Locköppningstyp:	Handmatig
Avtagbart-lock:	Ja