Crawlers Control Unit0 pages

SITEX CCU186
CRAWLER CONTROL UNIT

PORTABLE
X-RAY GENERATOR
Constant potential ultralightweight battery powered
X-Ray Generator for NDT and Security inspections
GENERAL
CHARACTERISTICS
The CCU186 control unit for
crawlers offers a distinct advantage
over existing products. All the
performances usually achievable
with standard control units are now
available in the crawler configuration:
automatic slow preheating,
progressive rise in voltage with each
exposure, selection of set values in
steps of 1 kV and 0.1 mA, etc.
Being fitted entirely with electronic
components of the industrial type
(-25°C to 80°C), the CCU186 is
perfectly suited to the often extreme
conditions of automatic intra-tube
control campaign.

GENERATORS
All the generators in the SITEX
range are automatically identified
and controlled by the CCU186 : the
interchangeability is total and can
be implemented instantaneously on
the site.
Moreover, these same generators will
operate smoothly with the standard
control unit SCU286, once the intratube testing campaign has been
completed.

CCU186R REMOTE CONTROL
Fitting a complete control unit, including
display and keypad, to a crawler
needlessly exposes components which
are more fragile by nature to the extreme
intra-tube conditions. The ICM solution
is an independent pocket-size remote
control unit : the CCU186R.
This provides the operator/CCU186
interface only when the radiological
parameters of the campaign are being
programmed. As soon as the preheating
has been completed and the kVs and mAs
have been keyed in, the remote control is
disconnected : the crawler is then ready.

COMMUNICATION
The CCU186 is a control unit marketed
exclusively as an O.E.M. product. By
definition it always forms an integral part
of the larger assembly constituting the
complete crawler. Its inputs-except for
the unique 120VDC power supply-form a
direct and simple communication with the
electronics of the crawler itself.
While the CCU186R controls the
preheating and the kV and mA
programming procedure, the crawler,
by closing a simple contact, controls
the execution of the exposure and
its duration. In return, for each of the
exposures, it receives confirmation that
they have been executed efficiently and in

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conformity with the programmed kV and
mA radiological parameters.

PERFORMANCE
For users it is vitally important to
discharge the various constituents of the
battery (usually 10 elements of 12 volts)
simultaneously. For this purpose the
CCU186 needs only one supply voltage
(from 105 to 140 VDC). Whatever the
actual voltage delivered by the battery
depending on its state of charge, the
kilovolts and milliamperes are maintained
strictly constant to within ± 0.5% by an
accurate control system.
To save the available energy, the CCU186
has an automatic stand-by system which
reduces the general consumption to a
minimum by, for example, disconnecting
the cooling fans when no command has
been issued for several minutes.
During the campaign any accidental
interruption in the power supply
immediately causes the settings to be
saved to the memory thus enabling
the unit to be restarted again without
difficulty.

CASING
The CCU186 is available as a compact
unit, embodying all the components
and optimally wired. It can easily be
incorporated into most crawlers.