590777

Gossen Metrawatt PROFITEST MXTRA Manual

40
Zoom out
Zoom in
Previous page
1/96
Next page
40 GMC-I Messtechnik GmbH
10.9 Earthing Resistance Measurement, Battery Operated – Selective (4-pole)
with Current Clamp Sensor and PRO-RE Measuring Adapter as Accessory (only MPRO & MXTRA)
General
When measuring earthing resistance in systems with several par-
allel connected earth electrodes, total resistance of the earthing
system is measured.
Two earth spikes (auxiliary earth electrode and probe) are set for
this measurement. Measuring current is fed between the earth
electrode and the auxiliary earth electrode and voltage drop is
measured between the earth electrode and the probe.
The current clamp is positioned around the earth electrode to be
measured, and thus only that portion of the measuring current
which flows through the earth electrode is measured.
Connection
➭ Position the spikes for the probe and the auxiliary electrode at
least 20, respectively 40 meters from the electrode (see figure
above).
➭ Make sure that no excessively high contact resistances occur
between the probe and the ground.
➭ Attach the PRO-RE adapter (Z501S) to the test plug.
➭ Connect the probes, the auxiliary electrode and the electrode
via the 4 mm banana plug sockets at the PRO-RE adapter.
In doing so, observe labeling on the banana plug sockets.
➭ Connect the Z3512A current clamp sensor to jacks 15 and 16 at
the test instrument.
➭ Attach the current clamp sensor to the earth electrode.
Select Measuring Function
Select Operating Mode
The selected operating mode is displayed inversely:
white battery icon against black background.
Set Parameters at Tester
q Measuring range: 200
Note
After switching to selective measurement, the AUTO
measuring range is activated automatically if a measuring
range of greater than 200 had been selected.
q Connection type: selective
q Current clamp sensor transformer ratio:
1:1 (1 V/A,) 1:10 (100 mV/A), 1:100 (10 mV/A)
q Distance d (for measuring
E
): irrelevant in this case
Set Parameters at Current Clamp Sensor
q Current clamp sensor measuring range: see table below
Selecting a Measuring Range at the Current Clamp Sensor
Important Instructions for Use of the Current Clamp Sensor
• Use only the Z3512A current clamp sensor for this measure-
ment.
•Use the clamp in the permanently connected state. The sensor
may not be moved during measurement.
• The current clamp sensor may only be used at an adequate
distance from powerful extraneous fields.
• Make sure that the current clamp sensor’s connector cable is
laid separate from the probe cables to the greatest possible
extent.
Start Measurement
PROFITEST MPRO, PROFITEST MXTRA
R
E
Tester Z3512A Clamp
Transforma-
tion Ratio
Parameter
Switch Measuring
Range
1:1
1 V / A
1 A / x 1 1 A
1:10
100 mV / A
10 A / x 10 10 A
1:100
10 mV / A
100 A / x 100 100 A
… 40 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Gossen Metrawatt PROFITEST MXTRA at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Gossen Metrawatt PROFITEST MXTRA in the language / languages: English as an attachment in your email.

The manual is 2,28 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Gossen Metrawatt PROFITEST MXTRA

Gossen Metrawatt PROFITEST MXTRA User Manual - Dutch - 92 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info