2
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Do not start the unit if the mains power cable or the unit
itself are damaged.
Switch the unit off after using it. Continuous operation is
not permissible. The maximum runtime per day is
10 hours. It is not a syfety risk if you the tube for longer
intervals but this could reduce the lifetime of the tube.
Start the unit at least twice per year and check its safety
functions. The tests that are included in the checklist at
the end of this document must be performed.
If damaged, the unit must be returned to the manufac-
turer for repair. Only the manufacturer or a certified com-
pany that has been appointed by the manufacturer are
authorised to repair and maintain the unit.
Since X-ray units generate dangerous radiation that is
hazardous to health, only trained and qualified persons
are authorised to start the X-ray unit in accordance with
the local, country-specific rules and regulations.
In Germany: When working with the X-ray unit, the man-
datory measures and duties that are outlined in the Ger-
man X-ray ordinance (Röntgenverordnung, RÖV) must
be strictly complied with.
The requirements of the certificate are to be followed
In particular, the operator must ensure that
o
the X-ray unit is protected against access by unau-
thorised persons;
o
the unit is not in use longer than necessary;
o
persons working with the unit do not remain in the
direct vicinity of the unit longer than absolutely
necessary.
The use of the unit is prohibited if
o
the sliding door that is made of lead-containing
acrylic glass and that is used for opening the ex-
periment chamber, or the other protective glass
windows that are used to observe the X-ray unit
and the experiment chamber, are damaged;
o
the fan at the X-ray plug-in side inside the unit is
inoperative (acoustic check);
o
the safety circuits for interrupting the X-ray opera-
tion when the sliding door is opened do not oper-
ate properly.
How to clean:
o
Do not use diluter/thinner!
o
Clean with cloth and appropriate cleaning agent.
Transport
o
Do not stress the drawer during transport. The
device should stand only on its feet.
o
During transport make sure that the sliding
door is not locked with the lock bar. If so,
unlock the door using button IV, Fig 5 (switch
on the device to use the button). The door
should not be open either – fix it with the
S-LOCK.
2 OPERATING
INSTRUCTIONS
The device fulfils the technical requirements that are
summarised in the current guidelines of the European
Community. The characteristics of the product entitle it to
bear the CE mark.
The unit must be used under the supervision of an expert
and in the electromagnetically controlled environment at
research, teaching, and training facilities (schools, uni-
versities, institutes, and laboratories).
This means that, in such an environment, radio transmis-
sion devices, e.g. mobile phones, should not be used in
the direct vicinity of the unit. The connected cables must
not be longer than 2
m.
Electrostatic charges or similar electromagnetic phe-
nomena (HF, bursts, indirect lightning discharge, etc.)
may affect the unit so that it will not work within the
specified data range.
Occuring interfering signals may result in an automatic
shutdown of the high voltage during measurement! In
this case please follow section 6.6.
The following measures reduce or eliminate potential in-
terferences: avoid carpets; provide equipotential bond-
ing; perform the experiments on a conductive, earthed
surface; use shields and shielded cables. Do not use ra-
diofrequency transmitters (radio sets, mobile phones) in
the direct vicinity of the unit. After a total exit by actuating
the mains power switch, perform a reset.
This unit corresponds to class A of the standard DIN
EN 61326 and may be used without any restriction only in
non-residential areas. If – although the use of the unit is re-
stricted to special classrooms in a school or another training
facility – electromagnetic interferences occur in the surround-
ing residential area, the operator can be required to take the
appropriate measures (e.g. shielding, long distance with re-
gard to sensitive equipment, short periods of use, use of the
shortest possible connecting cables, etc.) and to pay for
these measures.
3 INSTRUCTIONS OF THE GERMAN X-RAY
ORDINANCE
In Germany, the operation of the X-ray unit is subject to the
regulations that are outlined in the X-ray ordinance (Rönt-
genverordnung, RöV). In accordance with this ordinance, the
unit fulfils the mandatory requirements of an X-ray unit for
schools as well as those of a full-protection device.
In Germany, the operation of the unit is not subject to ap-
proval, but to reporting. Thus, report the unit to the appropri-
ate controlling institution.
For reporting, the test certificate and a copy of the design ap-
proval must be submitted to the responsible authorities. Only
specifically trained and instructed personnel is authorised to
operate the unit. When this unit is used as an x-ray device for
schools a radiation protection officer must be authorized.
If the unit operates at the maximum operating data, the local
dose rate at a distance of 0.1
m from the parts of the housing
that can be touched is less than 1
μ
Sv/h.
Two independent safety circuits monitor the opening of the
sliding door that leads to the experiment chamber.
X-rays can only be generated when the sliding door is prop-
erly locked. The safety circuits also prevent the maximum
permissible operating values of the tube from being ex-
ceeded.
Do not use the device if the X-ray unit is manipulated in a
way that is not necessary for its set-up or for performing ex-
periments. It is absolutely forbidden to loosen the safety
screws of the sheet steel housing or to tamper with the win-
dows. Only the manufacturer is authorised to repair the unit.
For any operation of the unit outside of Germany, the appli-
cable local rules and regulations must be complied with.
