Gossen MetraWatt METRALINE EXM25 Operating Instructions Manual

GOSSEN METRAWATT

3-349-729-15

Operating Instructions

METRALINE EXM25

2/10.16

GMC-I Messtechnik GmbH

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[e-mail]1.800.561.8187

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7 8 9

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5

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1 Test electrodes of voltage measuring line

(red conductor + /black conductor -)
2 Button DATA-HOLD
3 LED Ω (green): 0 ... 10 kΩ
4 LED Volt (red): 12 ... 1000 V
5 LCD display
6 -socket, black standard socket
7 7-pin universal connector for voltage measu-

ring lines, temperature transmitter, clamp-on

ammeter and power supply unit
8 Ω-socket, red standard socket for resistance

measurements
9 A-socket, blue standard socket

fuse socket for current measurements
10 ON/OFF button
11 Function button
12 Handgear

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Symbols on the instrument

Attention! Observe user instructions!

Ex marking:
Approved for potentially explosive atmospheres
in accordance with ATEX (EN 60079-0 and EN
60079-11) see sectionl 5.1

EC-conformity

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1. Application

The METRALINE EXM25 is an intrinsically safe multi­meter which can be used in areas with a potentio­nally explosive atmosphere in accordance with ATEX
(EN 60079-0 and EN 60079-11) and EN/IEC 61010
for voltage, resistance, current, frequency measure­ments with measurement accessories for
measurement of temperature and high current.
Model M210A with rechargeable battery and model
M210B with Lithium battery.

1.1 Intended use

This device is intended for use in applications as
described in the operating instructions only.
Thus, it is imperative to observe the notes on safety
and the technical data in conjunction with the
ambient conditions.
Any other form of usage is not permitted and can
lead to accidents or destruction of the unit.
Any misuse will result in the expiry of all guarantee
and warrantly claims.

2. Safety Precautions

When used for its intended purpose, safety of the
operator, as well as that of the instrument, is assured.
The voltage measurement tips contain moulded
multipliers within both test prods. They are extreme­ly safe and comply with overvoltage category CAT IV.
In order to maintain awless 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 device may only be used in the designated
Ex zones (see section 5.1) and inside of the safety-

related limit values (see section 5.2).



Before starting resistance measurements make
sure that the test object is at zero-potential.



Perform voltage measurements most up to the
following limits:
With probes EXM 72010 up to 1000 V



Faultless indication of display values is only
guaranteed between -10



Hold the instrument by its handgears only, to
avoid covering the display or touching the test
electrodes.

°C ... +40 °C.

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

Only qualified persons may carry out work with

these device. The user needs to be farmiliar with
the risks for measuring and compliance
with safety regulations and the proper use of the
tester.



Workings may only be performed with appropri-

ate personal protective equipment.

Observe the minimum object distance to other
plant components that are energized or earthed
and use personal protective equipment as speci-

fied by national accident prevention regulations

(in Germany: DGUV regulation 3
previously BGV A3 or VDE 0105-100).



The function of the measuring device must be

checked briefly before and whenever possible
after the use. Carry out the function test and
check the instrument at a known voltage source
(AC and DC). If the indication of one or several
systems fails in the course of checking, the
instrument must not be used again.





The tester may only be dismantled by authorised
personnal.



Maintainance is only allowed by the manufac-

turer or explicitly authorised repair shops

(see section 7).





Before using the device check the housing and
connecting line for visible damage. If damages
are visible the voltage tester may not be placed into
operation. In case of strong dirt contamination, the
tester must be cleaned before use.





The device has to be stored in a clean and dry
environment.

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3. Putting into operation

3.1 Battery

Your instrument is already supplied with an energie­block. Solely use the following energyblocks:
NiMH accumulator for class I and II T4:
type Z209A EXM-AK9
Lithium battery for class I and II T6:
type Z209B EXM-LB3

Attention!

Please observe section 6 before initial startup or
after your device has been in storage for a long
period of time.

3.2 Testing display and function

At every day of use the METRALINE EXM25 has to
be checked to ensure that it works properly and
faultlessly.

Self test 1 (Display test):

Press and hold button „ON/OFF“.All display seg­ments light up on the display, additionally the V-LED
and the Ω-LED light up. When you release button
„ON/OFF“, the value 000 ... 001 V is indicated on the
display.

Self test 2 (Voltage measuring line):

Connect and lock the voltage measurement tips
EXM 72010 to the 7-pin universal connector. Switch­on the device. Display: 000..001 V, in the upper
display line 1000 V. Put the test electrodes, one after
another, inclined 5 mm into the W-socket. Display
shows ‘Test’ and ‘rdy’ and green LED lights up.

Note:

In case the display continues showing 000 V the
measurement tip is damaged, please exchange.

Self test 3 (Voltage indication):

Check functions at a known voltage source - e.g. a
230 V socket.

Self test 4 (Resistance measurement):

Put the standard test lines into the Ω- and -socket.
Adjust the device to Ω, display: OL kΩ, hold test
prods together, display indication needs to be about

0.0 Ω and the green LED needs to light up.

Attention!

If indication of one or several systems fail in the
course of performing the self test, if function stand­by is not indicated or if the device is damaged, the
METRALINE EXM25 must not be used again.

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4. Measuring and testing

4.1. General information

battery status (see section 6)

leading sign

The upper display line
shows currently selected
measurement range.
When this indication is
ashing you have to con­nect special accessories
e.g. TMZ or MZ

The lower display line
shows the actual
metered value.

The instrument is switched o automatically
approximately 60 seconds after the last
measurement in order to extend battery life. In the
display the indication „o“ appears (exception: see
section 4.6 frequency measurements). The backlight
turns o when no measurement result is applied or
when the battery is low.

With the ON/OFF button engaging the
METRALINE EXM25 to voltage, call the
display test and switch-o the device.

►

With the function button you can select
the designated measurement range:

Function upper

display line

Voltage with tip EXM 72010 1000 V

Voltage, automatic range mV, V AuTo
resistance

Ω
current I
current with clamp-on ammeter

I ashes*
frequency FrE
temperature with TMZ T ashes*

* When the measurement ranges are indicated by a
ashing symbol the connection of special
accessories is necessary, e.g. a clamp-on ammeter or
the temperature transmitter

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