Download 07591.00 Induction coil, spark distance 70 mm

Induction coil, spark distance 70 mm
07591.00
PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10
D-37079 Göttingen
Telephone +49 (0) 551 604-0
Fax
+49 (0) 551 604-107
Internet
www.phywe.com
E-mail
[email protected]
Operating instructions
The unit complies
with the corresponding
EC guidelines.
Fig.1: Front view of the Induction coil, spark distance 70 mm 07591.00.
1
SAFETY PRECAUTIONS AND DANGERS
• Carefully read these operating instructions completly
before operating this instrument. This is necessary to avoid
damage to it, as well as for user-safety.
• Only use the instrument for the purpose for which it was
designed.
• Only use the instrument in dry rooms in which there is no
risk of explosion.
• Do not start up this instrument should there be visible signs
of damage to it.
• The Induction coil is only to be operated by a technically
qualified teacher.
• The current German X-ray Regulation does not permit the
use of vacuum tubes or discharge tubes together with the
Induction coil. For operating outside of germany, please
adhere to local standards!
Dangers
• The customary safety precautions that are valid for working
with dangerous electrical voltages must be strictly
observed to exclude harm to life or health. In particular, the
circuit that is to be connected (experimental set-up) must
first be completely set up in a currentless condition and be
re-checked prior to switching the instrument on. Operator
interventions or changes to the circuit must
correspondingly also only take place in a currentless
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condition.
• Care must be taken when working with Induction coils.
Contact with the output of an induction coil that is in
operation can be dangerous to life. The possibility of
inadvertent contact with metal parts during operation must
be ruled out.
• Endangered personal (e.g. people with cardiac
pacemakers) must not be allowed to stay in the vicinity of
the instrument (system) when it is in operation.
2 PURPOSE AND DESCRIPTION
The Induction coil (Heinrich D. Ruhmkorff principle, around
1851) supplies a pulse-shaped high voltage of approx. 60 kV
(as measured with a sphere gap). The spark distance (tip to
plate) is max. approx. 70 mm.
The Induction coil (primary coil 160 turns, secondary coil
35000 turns) is equipped with a hammer circuit breaker and
a quenching capacitor. The Induction coil is operated with a
primary-side direct voltage of 4... 8 V-. This is applied to the
terminal clamps on the base plate. The max. operating
amperage is approx. 3 A. Suitable sources of voltage are a
NiCd-accumulator (07490.26) or a variable transformer with
rectifier (13531.93). Operation with electronically
stabilized instruments is not recommended, as these
could be destroyed by the kickback pulse of the
Induction coil. The recommended positioning of the spark
gap on the Induction coil is with the tip connected to the
negative pole, the plate to the positive pole. The Induction
coil is so constructed that when the primary-side connection
is to the positive pole with the red connecting socket, the
positive pole on the secondary side also lies on the redmarked output socket.
1
07591.00/3009
3 PUTTING INTO OPERATION
Connect the Induction coil to a source of direct voltage that
supplies max. 8 V-. This maximum voltage of 8 V- is not be
exceeded. Use the adjusting screw to adjust the contact
breaker so that the Induction coil works flawlessly. Cleaning
of the tungsten contacts of the circuit breaker with emery
paper (320 to 400 grain) is recommended after longer use.
Caution
Before a renewed start of the instrument, again carry out the
safety measures (covering).
With this setting, the output voltage can be changed within
certain limits. Take care hereby that the circuit breaker does
not short-circuit as, with a non-operative Induction coil, too
high a primary current would result.
To prevent the occurrence of overvoltage, the spark gap must
always be fitted on the Induction coil when it is to be
operated.
No additional leads are to be connected to the secondary
connections.
4 NOTES ON OPERATION
This high-quality instrument fulfills all of the technical
requirements that are compiled in current EC guidelines. The
characteristics of this product qualify it for the CE mark.
Caution
The instrument is only to be operated in technical rooms
of training, research or educational facilities and under
the supervision of qualified personal. People entrusted
with the supervision of experiments and demonstrations
must take all measures necessary (such as screening,
short connecting leads, brief operating times) to ensure
that the proper functioning of instruments that are in use
outside of the technical room or in the direct
electromagnetic environment is not impaired. The
limiting values of Class A (Group 2 of the EN 55011
Norm) may be exceeded in the experimental set-up.
Arcing created on discharge could cause radio
disturbance up to a distance of some hundreds of
meters away. Further to this, the instrument is not to be
operated in the vicinity of electronic equipment such as
computers, meters as these could be destroyed by the
high instrument voltage.
5 NOTES ON THE GUARANTEE
We guarantee the instrument supplied by us for a period of
24 months within the EU, or for 12 months outside of the EU.
Excepted from the guarantee are damages that result from
disregarding the Operating Instructions, from improper
handling of the instrument or from natural wear.
The manufacturer can only be held responsible for the
function and technical safety characteristics of the
instrument, when maintenance, repairs and alterations to the
instrument are only carried out by the manufacturer or by
personnel who have been explicitly authorized by him to do
so.
6 WASTE DISPOSAL
The packaging consists predominately of environmental
compatible materials that can be passed on for disposal by
the local recycling service.
Should you no longer require this product, do
not dispose of it with the household refuse.
Please return it to the address below for proper
waste disposal.
PHYWE Systeme GmbH & Co. KG
Abteilung Kundendienst (Customer Service)
Robert-Bosch-Breite 10
D-37079 Göttingen
Phone +49 (0) 551 604-274
Fax
+49 (0) 551 604-246
2
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07591.00/3009