Gossen MetraWatt METRAVOLT 12D+L Operating Instructions Manual

Operating Instructions

METRAVOLT 12D+L

Voltage and Continuity Tester
with Phase and Polarity Tester
and Phase Sequence Indicator

3-349-592-02

4/4.12

GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nürnberg •

Germany

Phone [phone]
Fax [phone]
E-Mail [e-mail]
www.gossenmetrawatt.com

2 GMC-I Messtechnik GmbH

1Test probes
2 Low voltage display (red LED):

as of 50 V AC / 120 V DC

3  LED (green): lights up for resistance

measurement from 0 to 1999 k (continuity is

indicated by means of a sound generator)
4 LEDs for phase sequence indication left/right
5 Polarity display (~ or –)
6 LCD panel for voltage and resistance
7 HOLD key: freezes the display value
8 /V and CAL key: shift key for resistance /

voltage measurement and zero balancing for

resistance measuring range
9 and test key : On/Off key (manual) and

function test

10 Handle bar

11 Connection cable

Meanings of symbols on the instrument:

Warning concerning a source of danger
(attention: observe documentation!)

VDE testing authority approval mark

Indicates EC conformity

This device may not be disposed of with
the trash. Further information regarding
the WEEE mark can be accessed on the
Internet at www.gossenmetrawatt.com by
entering the search term ’WEEE’.

ED: On-time for voltage testing

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GMC-I Messtechnik GmbH 3

Table of Contents Page

1 Applications ............................................... 3

2 Safety Precautions ..................................... 4

3 Initial Start-Up ............................................ 5

3.1 Battery ................................................................. 5

3.2 Testing for Correct Display and Function ................ 5

4 Measuring and Testing .............................. 6

4.1 General Instructions .............................................. 6

4.2 Testing Voltage and Polarity .................................. 6

4.2.1 Voltages of Less than 24 V .................................... 7

4.2.2 Voltages of 24 ... 1000 V AC / 1500 V DC ............. 7

4.2.3 Voltages of 1000 V AC ... 1200 V AC ..................... 7

4.2.4 Voltages greater than 1200 V AC/1500 V DC ......... 7

4.3 Testing of Phase and Phase Sequence ................... 7

4.3.1 Phase Test ........................................................... 8

4.3.2 Testing of Phase Sequence ................................... 8

4.4 Resistance and Continuity Testing .......................... 8

5 Characteristic Values ................................. 9

6 Maintenance – Recalibration ................... 10

6.1 Battery ............................................................... 10

6.2 Housing ............................................................. 11

6.3 Recalibration ...................................................... 11

6.4 Device Return and Environmentally Compatible

Disposal ............................................................. 12

7 Repair and Replacement Parts Service

Calibration Center

and Rental Instrument Service ................ 12

8 Product Support ....................................... 12

1 Applications

The METRAVOLT 12D+L is a 2-pole voltage tester
with digital display, combined with an integrated
continuity, phase and polarity tester, and a phase
sequence indicator. It allows for safe detection and
measurement of AC and DC voltages within a
range of 24 to 1000 V at frequencies of up to
4 kHz. Resistance within a range of 0 to 1999 k
can also be measured with the integrated
continuity tester. Voltage and resistance values
appear in digital format at the LCD. In addition to
this, 3 LEDs indicate dangerous contact voltage
and phase sequence, with another LED indicating
resistance and a sound generator for continuity.

The METRAVOLT 12D+L can also be used in
precipitation thanks to IP 65 protection.

4 GMC-I Messtechnik GmbH

2 Safety Precautions

You have selected an instrument which provides
you with a high level of safety.

The METRAVOLT 12D+L voltage tester has been
manufactured and tested in accordance with
requirements set forth in DIN EN 61243-3
(VDE 0682 part 401) regarding 2-pole voltage
testers. When used for its intended purpose, the
safety of the operator, as well as that of the
instrument, is assured.

In order to maintain flawless technical safety conditions,
and to assure safe use, it is imperative that you read
these operating instructions thoroughly and carefully
before placing your instrument into service, and that you
follow all instructions contained therein.

The instrument provides for excellent electrical
safety by means of two series resistors immediately
downstream from each of the two test probes as
well as two completely autonomous test systems:

• Low voltage test display which reliably indi­cates any existing voltage by means of one
LED, even without batteries.

• Digital display for exact test values.

The METRAVOLT 12D+L voltage tester has been
approved by the VDE test authority for application
of the VDE GS mark.

Observe the following safety precautions:

• The instrument has a nominal voltage range of
24 to 1000 V AC/1500 V DC. The instrument
may only be used in electrical systems whose
nominal voltage lies within this range.

• The faultless functioning of the display is only
guaranteed in the temperature range from
– 10 °C to + 55 °C.

• Touch the instrument by the handles only
during testing, and never touch the test
probes.

• The voltage tester is equipped with IP65
protection, and can be used in wet weather
conditions (protected against jet water
streams from all directions).
However, powerful water jets, flooding and
submersion or immersion must be avoided.

• If one of the displays fails during the self-test
described in chapter 3 – even if only partial
failure occurs – or if no display appears
indicating that the instrument is ready for use,
the voltage tester may not be placed into
operation.

• The voltage tester may not be dismantled by un­authorized persons (see chapter 7 on page 12).

• The voltage tester has a maximum allowable
on-time of 2 minutes for voltage tests.

• Voltage testers must be kept dry and clean.
The housing can be cleaned with isopropyl
alcohol or soapy water.