Sonel MRU-120 Manual

Sonel Måleudstyr MRU-120

Læs gratis den danske manual til Sonel MRU-120 (2 sider) i kategorien Måleudstyr. Denne vejledning er vurderet som hjælpsom af 14 personer og har en gennemsnitlig bedømmelse på 4.6 stjerner ud af 7.5 anmeldelser. Har du et spørgsmål om Sonel MRU-120, eller vil du spørge andre brugere om produktet?

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Side 1/2

Enabling auto-zeroing

Disabling auto-zeroing

Sonel MRU-120

Earth Resistance Meter QuickStart●

v1.00 | 26.05.2020

Connect the meter to the measured wire.

Run the measurement using START button.

In order to eliminate the inuence of the resistance of the test leads

over the result of the measurement, its compensation (auto-zeroing)

has to be done.

Press START.

Using button enable mode.F1 AUTOZERO

Short-circuit the test leads.

Press START.

Using button enable mode.F1 AUTOZERO

Separate the test leads.

It is sufcient to realize compensation once for the given test leads.

It is also remembered once the meter has been turned off, until the

next successful auto-reset procedure.

First steps

Turn on the meter

Select the method and connect

Congure

Obtain the result

Measurements

The meter is designed for measurements at interference voltages which do not exceed 24 V

for RE measurements and 3 V for RCONT measurements. The voltage is measured up to 100 V,

but above 40 V is indicated as dangerous. The meter must not be connected to voltages ex-

ceeding 100 V.

UN>24V!

The voltage on the mea-

surement points exceeds

24 V but is lower than

40 V. The measurement

is blocked.

NOISE!

The value of the interfering

signal is too high. The result

may be distorted by additional

uncertainty.

LIMIT!

The uncertainty of the

electrode resistance

>30%. Uncertainties

calculated on the basis of

the measured values.

UN>40V!

and a contin-

uous

sonic signal

The voltage on the

measurement points

exceeds 40 V. The mea-

surement is blocked.

R>19,99kΩ

RE>19,99kΩ

RS>19,9kΩ

RH>19,9kΩ

ρ>999kΩm

Measurement range

exceeded. I

L>max

Excessive interfering

current, the measurement

error may exceed the

basic error.

Wire continuity measurement

MRU-120

ERP-1

Saving a result to the memory

After the measurement press ENTER.

Select memory cell using buttons ▲▼.

Select memory bank using buttons ◄►.

Connect the meter to the leg of the measured pole.

Select method 3P . Connect the exible clamp to

ERP-1 adapter. Wrap the clamp around the object's

leg and it's earthing tape. Select measuring voltage.

Press START.

Earth resistivity measurement

Connect the meter to the measured earth.

Enter settings

▪ F1 measuring voltage

Using button run the measurement.ENTER

Press START.

Using buttons ▲▼enter the distance between electrodes.

Earth resistance measurement RE

Measurement of RE of poles using ERP-1 adapter

Target cell empty Target cell occupied

Press to save the result.ENTER

Find more information

in the user manual

and on our website

www. .comsonel

Enter settings

▪ voltage/pulse shapeF1

Using button START run the measurement.

Conguration and RE measurement

UN ........voltage on the measurement points

fN ..........interference frequency

IL ..........interfering current

RH ........resistance of current electrode

RS .........resistance of voltage electrode

δ ..........additional uncertainty caused by the resistance

of the electrodes

Similarly, connect the next legs of the object. Having

the results of each leg measurement, you can calculate

the resultant resistance of the entire object from the

formula:

RE = 1

1+ ... + 1

R1Rn

Main result

Additional

results

Using FLEX button select the type of exible clamps

connected to the device.

Using TURNS button select the number of exible

clamp wraps around the pole leg.

Main result

Additional

results

Produkt Specifikationer

Mærke:	Sonel
Kategori:	Måleudstyr
Model:	MRU-120

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