METREL MD 126 User manual

METREL MD 126

Voltage and Phase Sequence Detector

Spannungs- und Phasensequenzdetektor

Detector de tensión y secuencia de fases

MD 126

User manual

Benutzerhandbuch

Manual de instrucciones

Ver. 1.1.5, Code no.20753242

KOMETEC Karl Oelkers e.K.

Mess- und Prüfgeräte · Shop

Mozartstr. 10 · D-88097 Eriskirch

T: 07541 / 955-1313 · F: 07541 / 955-1131

[email protected] · www.kometec.de

Distributor:

METREL d.d.

Ljubljanska cesta 77

1354 Horjul

Slovenia

e-mail: [email protected]

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

Metrel GmbH

Mess und Prüftechnik

Orchideenstrasse 24

90542 Eckental -Brand

Germany

E-mail: [email protected]

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

Metrel UK Ltd.

Unit 16, 1st Qtr Business Park

Blenheim Road

Epsom

Surrey

KT19 9QN,

United Kingdom

E-mail: [email protected]

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

Mark on your equipment certifies that this equipment

meets the requirements of all subjected EU regulations.

Die Kennzeichnung auf Ihrem Gerät bescheinigt, dass es

die Anforderungen aller geltenden EU-Vorschriften

erfüllt

La marca presente en su equipo certifica que este

satisface los requisitos de todos los reglamentos de la

UE aplicables.

Contents

Contents 3

Introduction 4

Safety 5

Technical specification 6

Product Description 7

Operation 8

Maintenance 11

Einführung 12

Sicherheit 13

Technische Spezifikation 15

10.Produktbeschreibung 16

11.Bedienung 17

12.Wartung 20

13.Introducción 21

14.Seguridad 22

15.Especificación técnica 24

16.Descripción del producto 25

17.Manejo 26

18.Mantenimiento 29

MD 126 Detector Introduction

1. Introduction

MD 126 is an essential tool for work in three-phase

systems. Before any other work is done, the presence or

absence of voltage must be determined, and the phase

sequence confirmed. The operation is fast and intuitive.

•

Key features:

•

Non-contact voltage detection.

•

Range 100 – 1000 V.

•

Phase sequence detection.

•

Colour LED indication.

•

Sound indication.

•

LED Flashlight at the back.

•

Work flashlight at the front.

MD 126 Detector Safety

2. Safety

•Respect the safety rules indicated in the user

manual.

•Read understand and follow safety rules and

operating instructions in the manual before using

this tester.

•The tester’s safety features may not protect the

user if not used in accordance with the

manufacturer’s instructions.

•Check on a known live source within the rated AC

voltage range of the tester before use to ensure it

is in working order.

•Insulation type and thickness, distance from the

voltage source, shielded wires, and other factors

may effect reliable operation. Use other methods

to verify live voltage, if there is any uncertainty.

•Do not use if the tester appears damaged or if it

is not operating properly. If in doubt, replace the

tester.

•Do not use on voltages that are higher than as

marked on the tester.

•Use caution with voltages above 30 volts AC as a

shock hazard may exist.

•Comply with all applicable safety codes. Use

approved personal protective equipment when

working near live electrical circuits-particularly

with regard to arc-flash potential.

•Do not operate tester if Low Battery warning

occurs. Replace batteries immediately.

Safety symbols

Potential danger. The user should

refer to the manual for important

safety information.

Dangerous voltages may be present.

The equipment is protected by double

or reinforced insulation

MD 126 Detector Safety

3. Technical specification

Detection Voltage

Range

100 V–1000 V AC

Phase Voltage Range

200 V–1000 V.

Frequency Range

50 / 60Hz

Batteries

Two AAA 1.5V batteries

Operating Temperature

0–50 °C (32–122 ° F)

Storage Temperature

-10–60 °C (14–140 °F)

Humidity

80% max.

Altitude

2000 meters

Pollution Degree

Safety Compliance

CAT IV 1000V

IP Rating

IP67

MD 126 Detector Product description

4. Product Description

1. Battery cover

2. Flashlight

3. Flashlight button

4. Phase rotation button

5. On/Off button

6. LED indicators

7. Detector tip

8. Work flashlight

MD 126 Detector Operation

5. Operation

Turning the Tester On

Press the ON/OFF button. The tester will beep once.

The green LED and the work flashlight will turn on to

indicate that the tester is working in high voltage

mode and is ready for use.

Turning the Tester Off

Press the ON/OFF button while on. The tester will beep

twice and the LEDs will turn off.

Mode Selection

When the tester is on and in non-contact voltage

detection (NCV) function, short press the once.

The green and yellow LEDs will slowly alternately flash

to indicate that the tester is in the phase sequence

mode.

Short press the button again. The yellow LED will

turn off and the green LED will turn on. The tester will

return to the NCV mode.

The tester will beep once every time the button is

pressed.

The button operation is valid only when the NCV

function is turned on.

Verify Operation

Before using the tester:

Make sure the green LED is glowing.

Check tester on a known live AC voltage that

is within the defined detection range of the

tester.

High Voltage Mode (100 to 1000V AC)

Place the tip of the tester near AC voltage.

If the tester detects voltage within the defined

detection range, the green LED will turn off, the red

LED will turn on, the beeper will beep rapidly.

MD 126 Detector Operation

Phase Sequence Test Mode

Place the tip of the tester close to the L1 phase wire.

The tester will beep once. The green and yellow LED

will rapidly alternately flash to indicate the

measurement of the first phase in sequence is

complete.

Move the tip of the tester close to the L2 phase wire.

When the measurement is complete there will be two

possible results:

1. The tester beeps and green LED turns on for

about 5 seconds to indicate a correct phase

sequence (L2 is ahead of L1 by 120 degrees).

2. The tester beeps and the yellow LED turns on

about for 5 seconds to indicate an incorrect phase

sequence (L2 is lagging after L1 by 120 degrees).

Test L1 and L3, L2 and L3 in the same way.

Note: To improve test accuracy, do not place the tester

tip in the middle between two phase lines.

Note: If the phase sequence test is not completed

within 1 minute, the red LED will turn on, the green and

yellow LED will flash alternately, and the tester will

beep 5 times to indicate that phase sequence test is

invalid. The test will reset to the phase sequence test

mode. L1 must be measured again.

Low Battery Indication

•Replace the batteries if the mode indication LED

does not turn on.

•When the tester is on and the battery become

too low for reliable operation, the tester will beep

three times and the mode indication LED will

turn off, indicating the tester is not operational.

•Replace the batteries to restore operation.

Auto Power Off

•To conserve battery life, the tester will

automatically turn off after approximately 5

minutes of inactivity.

•When powering down, the tester will beep twice

and the mode indication LED will turn off.

MD 126 Detector Operation

Flashlight

•Momentarily press the Flashlight button to turn

the flashlight on or off.

•To conserve battery life, the flashlight will

automatically turn off after approximately 5

minutes when the NCV function is on.

•The tester will beep twice as the flashlight auto

power off.

Table of contents

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