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Kentech Instruments Ltd., Isis Building, Howbery Park, Wallingford, Oxfordshire, OX10 8BD, U.K.
Last Modified 11-2-20
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DISCLAIMER
There are high voltage power supplies present in this instrument when the unit is operating. Do not
remove any covers from the unit or expose any part of its circuitry. In the event of malfunction, the
unit must be returned to Kentech Instruments Ltd. or its appointed agent for repair.
The accessible terminals of this instrument are protected from hazardous voltages by basic insulation
and protective grounding via the power input connector. It is essential that the ground terminal of
this connector is connected to the local earth/screened enclosure via the power lead to maintain
this protection.
Kentech Instruments Ltd. accepts no responsibility for any electric shock or injury arising from
use or misuse of this product. It is the responsibility of the user to exercise care and common sense
with this highly versatile equipment.
Read this manual before unpacking and using the instrument. If cleaning is necessary this should
be performed with a soft dry cloth or tissue only.
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EMC CAUTION
This equipment includes circuits intentionally designed to generate short high energy electromagnetic
pulses and the EM emissions will be sensitive to the details of the experimental set up.
In practice emissions may exceed E55011 and the unit may cause interference with other equipment
in its immediate environment. It is therefore suitable for use only in a laboratory or a sealed
electromagnetic environment, unless it is used in a system that has been verified by the system
builder to comply with EC directive 89/336/EEC. Use of this apparatus outside the laboratory or
sealed electromagnetic environment invalidates conformity with the EMC Directive and could lead
to prosecution.
We believe that with this type of unit it has to be the system builders responsibility to verify that
his pulser/load system complies with the EC directive unless the system is used in a screened
electromagnetic environment.
We are not able to guarantee compliance with arbitrary loads but to minimise emissions we
recommend:-
1) That any load is fully contained within a conductive metal screened box, with all joint surfaces
gasketed or fitted with conductive fasteners at less than 5cm intervals.
2) That the load is connected to the pulser output with semi-rigid cable, the cable outer must be
carefully connected to the N type output connector at one end, and must be connected directly to
the screened box containing the load at the point of entry. Flexible cables should only be used with
caution, in particular RG303 type cable will need additional screening to control emissions. The
use of semi rigid cables or conformable semi rigid cables will deliver lower EM radiation from the
cabling than any flexible types.
Pockels cells will radiate through the optical windows and if this is an issue the laser system should
be enclosed in a suitable EMC enclosure.
