User Manual

If there is a surface with a high voltage very close to the coil and the voltage is subject to high
rates of change or high frequency oscillations in the MHz range, then measurement error can
arise due to capacitive coupling to the coil.
To check for any unwanted response to adjacent elds, it is recommended to quantify the output
of the Teledyne Test Tools Rogowski probes when close to (but not encircling) the conductor under
test. This will reveal the magnitude of any unwanted responses to currents close to, but outside,
the coil.
OUTPUT CABLES
Your Teledyne Test Tools Rogowski probe has been supplied with a 50ohm BNC to BNC output
cable. It is possible to use longer cables and these should be of a 50ohm single screened
co-axial cable type.
Teledyne Test Tools does not consider the use of extension cables to be problematic from the
noise viewpoint but consideration should be given to the routing of very long cables.
CLEANING AND DECONTAMINATION
To prevent surface contamination the Rogowski coil and cable should be inspected regularly.
The Rogowski coil must be disconnected from any external circuit and turned OFF prior to
cleaning. To clean the coil and cable use a mild detergent and a damp cloth to remove any
contamination, wipe dry with clean cloth to remove the detergent and dry thoroughly before
placing back into service.
Teledyne Test Tools accepts no responsibility for the use of any other cleaning solvents or
cleaning methods.
WARRANTY
The Rogowski probe is guaranteed to be free from defects due to materials and workmanship
for 1 year.
In the event of a defect where the transducer has not been misused the Rogowski probe should
be returned to Teledyne Test Tools with freight charges to be paid by the customer. Correction
shall be in the form of repair or replacement.
RETURNING YOUR ROGOWSKI PROBE FOR RECALIBRATION OR
REPAIR
To return the Rogowski probe to Teledyne Test Tools for repair or recalibration please contact
Teledyne LeCroy in advance for shipping instructions (refer to information on the back page for
contact details and our service procedure).
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