METREL MD 9260 Manual de usuario

METREL MD 9260

Photovoltaic CAT III 1500V multimeter clamp

Photovoltaik-Multimeter-Zange KAT III 1.500 V

MD 9260

User Manual

Bedienungsanleitung

Version 1.1.8, Code no.

20753238

Distributor:

METREL d.d.

Ljubljanska cesta 77

1354 Horjul

Slovenia

e-mail: metrel@metrel.si

web site: http://www.metrel.si/

Metrel GmbH

Mess und Prüftechnik

Orchideenstrasse 24

90542 Eckental -Brand

Germany

E-mail: metrel@metrel.de

Internet: http://www.metrel.de/

Metrel UK Ltd.

Test & Measurement

Unit 16, 1st Qtr Business Park

Blenheim Road

Epsom

Surrey

KT19 9QN,

Great Britain

E-mail: info@metrel.co.uk

Internet: http://www.metrel.co.uk

Mark on your equipment certifies that this equipment meets the requirements of the EC

(European Community) regulations concerning safety and electromagnetic compatibility.

No part of this publication may be reproduced or utilized in any form or by any means without

permission in writing from METREL.

MD 9260 Clamp Meter Table of contents

Table of contents

English

1. Safety .................................................................................................................................4

2. Product Description ............................................................................................................6

3. Operation............................................................................................................................ 7

4. Maintenance..................................................................................................................... 13

5. Specifications ................................................................................................................... 14

6. Limited Warranty ............................................................................................................. 18

7. Service .............................................................................................................................. 19

German

8. Sicherheit .........................................................................................................................20

9. Produktbeschreibung........................................................................................................ 22

10. Bedienung ........................................................................................................................ 23

11. Wartung ...........................................................................................................................30

12. Technische Daten ............................................................................................................. 31

13. Eingeschränkte Garantie...................................................................................................35

14. Wartung ...........................................................................................................................36

MD 9260 Clamp Meter Safety

1. Safety

This manual contains information and warnings that must be followed for operating the

instrument safely and maintaining the instrument in a safe operating condition. If the

instrument is used in a manner not specified by the manufacturer, the protection provided by

the instrument may be impaired.

To avoid electrical shock hazard, observe the proper safety precautions when working with

voltages above 60 VDC or 30 VAC rms. These voltage levels pose a potential shock hazard to

the user.

Keep your hands/fingers behind the hand/finger barriers (of the meter and the test leads) that

indicate the limits of safe access of the hand-held part during measurement. Inspect test

leads, connectors, and probes for damaged insulation or exposed metal before using the

instrument. If any defects are found, replace them immediately. Only use the test probe

assembly provided with the meter or a UL Listed test probe assembly to the same meter

ratings or better.

This Clamp-on meter is designed to apply around or remove from uninsulated hazardous live

conductors. But still, individual protective equipment must be used if hazardous live parts in

the installation where measurement is to be carried out could be accessible.

Disconnect the test leads from the test points before changing functions.

The meter protection rating, against the users, is double insulation per IEC/EN/UL/CAN/CSA

C22.2 No. 61010-1 Ed. 3.1, IEC/E/UL/CAN/CSA C22.2 61010-2-032 Ed. 4.0 Measurement

Categories CAT IV 1000V and CAT III 1500V dc for Photovoltaic Power Generation applications.

The accompanying test probe assembly meets IEC/EN/UL/CAN/CSA C22.2 No.standards of

61010-031 Ed. 2.0 to the same meter ratings or better. The IEC/EN/UL/CAN/CSA C22.2 No.

61010-031 requires exposed conductive test probe tips to be ≤ 4mm for CAT III & CAT IV ratings.

Refer to the category markings on your probe assemblies and the add-on accessories (like

detachable Caps or Alligator Clips), if any, for applicable rating changes.

Brief Information on Measurement Categories

OVERVOLTAGE CATEGORY II

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

from the utilization points (e.g. sockets) of the low-voltage mains.Examples include household,

office, and laboratory appliances.

OVERVOLTAGE CATEGORY III

Equipment of OVERVOLTAGE CATEGORY III is located the distribution part of the low-voltage

mains.Examples include distribution boards, circuit breakers, cables, bus-bars, sockets,

stationary motors and fixed-installed industrial equipment.

MD 9260 Clamp Meter Safety

OVERVOLTAGE CATEGORY IV

Equipment of OVERVOLTAGE CATEGORY IV is applicable at the source of the local low

voltage installation. Examples include electricity meters, primary over-current protection

equipment and any other equipment installed before the main fuse.

TERMS IN THIS MANUAL

WARNING identifies conditions and actions that could result in serious injury or even death

to the user.

CAUTION

identifies conditions and actions that could cause damage or malfunction in the

instrument.

INTERNATIONAL ELECTRICAL SYMBOLS

Caution ! Refer to the explanation in this Manual

Caution ! Risk of electric shock

Earth (Ground)

Double Insulation or Reinforced insulation

Fuse

AC--Alternating Current

DC--Direct Current

Application around and removal from hazardous live conductors is permitted

EUROPEAN DIRECTIVES AND UK STATUTORY REQUIREMENTS

The instruments conform to EUROPEAN (CE) Low-Voltage Directive 2014/35/EU,

Electromagnetic Compatibility Directive 2014/30/EU, and RoHS 2 Directive 2011/65/EU plus

amendment Directive (EU) 2015/863. The instruments also conform to the UK (UKCA)

Electrical Equipment (Safety) Regulations 2016, Electromagnetic Compatibility Regulations

2016, and The Restriction of the Use of Certain Hazardous Substances in Electrical and

Electronic Equipment Regulations 2012.

MD 9260 Clamp Meter Sicherheit

2. Product Description

This user's manual uses only representative model(s) for illustrations. Please refer

specification details for function availability to each model.

1) Antenna for Non-Contact EF-

Detection

2) H

and/Finger Barrier to indicate

the limits of safe access of the meter

during measurement

3) Rotary-switch Selector to turn the

power ON/OFF and Select a function

4) Push-buttons f

or special

functions & features.

5) Input Jack for all functions

EXCEPT non-

invasive DCA & ACA

current functions

6) Common (Ground reference) Input

Jack for all functions EXCEPT non-

invasive D

CA & ACA current

functions

7) 3-5/6 digits 6000 counts & 3-1/2

digits 2000 counts dual numeric LCD

display

8) Jaw trigger for opening the clamp

jaw

9) Jaw center (& DCA polarity)

Indicator, at where best DCA & ACA

accuracy is specified

10) Hall-effect Clamp Jaw for AC & DC

current magnetic field pick up

MD 9260 Clamp Meter Operation

3. Operation

CAUTION: Before and after hazardous voltage measurements, test the voltage function on

a known source such as line voltage to determine proper meter functioning.

VFD-ACV Hz & ACV Hz functions

Inputs are made through the test leads terminals.

VFD-ACV Hz function is to deal with VFD (Variable Frequency Device) signals. It, however,

further pre-selects the most appropriate voltage-ranges and thus the Hz trigger levels to best

cope with most VFD-Voltage and VFD-Frequency applications.

Note: The Hz trigger level is determined by the AC/DC+AC Voltage or Current function-range

being in use. Press RANGE button to select different function-ranges and thus trigger levels

manually.

DCV & DC+ACV Hz functions

Inputs are made through the test leads terminals. Defaults at DCV Function. Press SELECT

button momentarily and release to select DC+ACV Hz.

ACA Hz, DCA & DC+ACA Hz functions

Input is made through the clamp jaws for non-invasive current measurements. Defaults at

ACA Hz Function. Press SELECT button momentarily and release to select the subject functions

in sequence.

MD 9260 Clamp Meter Sicherheit

CAUTION: Application and removal of the Clamp-on meter

For non-invasive current measurements, press the jaw trigger and clamp the jaws around

conductor(s) of only one single pole of a circuit for load current measurement. Make sure the

jaws are completely closed, or else it will introduce measurement errors. Enclosing conductor(s)

of more than one pole of a circuit may result in differential current (like identifying leakage

current) measurement. Locate the conductor(s) at the Jaws center as much as possible to get

the best measuring accuracy. For removal, press the jaw trigger and remove the jaws from the

conductor(s).

Adjacent current-carrying devices such as transformers, motors and conductor wires will affect

measurement accuracy. Keep the jaws away from them as much as possible to minimize

influence.

WARNING

Do not use the meter to measure currents above the rated frequency (400Hz). Circulating

currents may cause the magnetic circuits of the Jaws to reach a hazardous temperature.

ΩResistance & Continuity functions

Use probes in the input terminals. Defaults at ΩResistance. Press SELECT button

momentarily and release to select Continuity

Capacitance & Diode functions

Use probes in the input terminals. Defaults at Capacitance. Press SELECT button

momentarily and release to select Diode.

MD 9260 Clamp Meter Sicherheit

Note

When using Diode test function, normal forward voltage drop (forward biased) for a good

silicon diode is between 0.400V to 0.900V. A reading higher than that indicates a leaky diode

(defective). A zero reading indicates a shorted diode (defective). An OL indicates an open diode

(defective). Reverse the test leads connections (reverse biased) across the diode. The digital

display shows OL if the diode is good. Any other readings indicate the diode is resistive or

shorted (defective).

CAUTION

1. Using Resistance, Continuity, Diode or Capacitance function in a live circuit will produce false

results and may damage the meter. In many cases the suspected component(s) must be

disconnected from the circuit to obtain an accurate measurement reading.

2. When using Capacitance function, discharge capacitor(s) before making any measurements.

Large value capacitors should be discharged through an appropriate resistance load

MD 9260 Clamp Meter Sicherheit

Temperature function

Defaults at oC (Celsius) readings. Press SELECT button momentarily and release to select oF

(Fahrenheit) readings. Inputs are made through the test leads terminals. Be sure to insert the

banana plug type-K temperature bead probe AMD 9023 with correct polarities. You can

also use a plug adapter AMD 9024 (Optional purchase) with banana pins to type-K socket to

adapt other type-K standard mini plug temperature probes.

Electric Field EF-Detection

In Voltage or Current function, press the EF button for one second or more and release to

toggle to EF-Detection feature. The meter displays “E.F.” when it is ready. Signal strength is

indicated as a series of bar-graph segments on the display together with variable beep tones.

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