viZaar INVIZ BIG, Руководство по эксплуатации

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After the initial startup of the INVIZ
system, the following points may be
noticed by you:
:: The image is out of focus. The manually
adjustable optic was adjusted ex-works
to a focal distance of approx. 100 mm.
The focal range was not conceived for
the observation of the environment.
:: The image inside the application
appears dark or too bright. Reduce or
increase the light as desriped under
initial operation. If the light output is
still too low, check all LED’s
illuminating or consider the light output
not being enough for this particular
cavity / pipe – usage of optional 40mm
head is recommend.
In the following, we have collected a few
general empirical values, which can help
you to economically achieve utilizable
inspection results quicker and lastingly.
The points do not concern your work
safety, but exclusively serve the purpose
of communicating general technical
knowledge.
Before introducing the probe into a cavity
or a pipeline, it must always be ensured:
:: That the highest permissible operating
temperature (e.g. 65° C) of the probe is
not exceeded. A sure sign for too high a
temperature is the appearance of white
pixels; the device must be immediately
switched-off and the probe must be
removed from the application urgently.
One-time temperatures above 84° C
destroy the camera head irreversibly.
Fresh weld seams in pipelines have high
local temperatures, which quickly lead to
the destruction of the instrument!
:: That the application is free of acids,
alkali, oils and solvents. All non
ph-neutral liquid media may destroy
different parts of the probe.
:: That the application is not impurified
with liquids, the viscosity of which lies
below that of water (e.g. glysantine).
:: That the entry point is deburred; sharp
edges damage the braiding of the
insertion tube.
:: That the sheathing of the distal probe
end is not visibly damaged and
leaky right from the beginning.
:: That no elements in the application can
be activated, e.g. remote control valves,
turbine rotors, agitators etc.
:: For achieving meaningful inspection
results, the application ought to be
cleaned in advance, as long as depositions
need not be documented. In case of
unclean plants, the optic or the light
out of the camera is dirtied fast.
:: The probe must be inserted inside
plants only when it is clean, in order to
prevent so-called “cross contamination”.
This is in particular true for the food
and pharmaceuticals field.
:: Therefore, the probe shall never be
inserted in the sewerage.
:: Autoclaving is not possible.
:: The farther you insert a probe, the
greater is the danger that it might get
stuck. In principle, an endoscopic probe
can be more easily inserted than
extracted, as far as straight, narrow and
steeples pipelines are not being inspected.
In perimeters (e.g. heating pipes at
apparatus and reactors) this can lead to
self-obstruction – similar to a lasso. Do
not lose your nerves in such a case- there
are often different methods of disengaging
the probe without opening the plant or
destroying the probe. The risk of getting
stuck on steps is increased with the
employment of centering tools. In
principle, never use force while
releasing! The manufacturer offers a
foreign parts retrieving service.
:: In order to limit the long-time action of
unknown substances, the probe ought to
be cleaned after use.
:: Mount your equipment basically in such
a manner, that it stands absolutely
securely. Fundamentally, the probe does
not possess the constructive
characteristics of stopping a free fall of
the control device without breaking.
Through an insecure mounting, you are
principally seriously endangering persons,
who are working on levels beneath you.
At the same time, strong jolts are
resented by a rotating arc lamp, besides
shortening its lifetime, possibly
accompanied by total failure.
:: Ensure that no one can tread on the
probe. Wind up superfluous probe lengths
immediately. This is all the more valid, if
vehicles are moving in the vicinity or your
inspection takes place on a steel grating.
Further advice from practice:
:: If the illumination of your endoscope is
not sufficient in an axial inspection
(view angle 0°), the environment can be
brightened with a white styrofoam piece
or a paper ball, which are moved in front
of the endoscope. Attention, connect
styrofoam or paper well with a fishing
line, in order to ensure a simple retrieval.
:: You can mark the probe with coloured
insulation tape at regular intervals, in
order to localize the inspection spot
more easily. Kindly take a zig-zag
position of the probe into calculation.
:: A stuck probe can be released with
deliberate rotation and simultaneous
pulling or even pushing. In connection
with centering tools, steps or
down-coming, T-outlets with downward
incline, can be jumped over a “swing”;
heavy centering tools ought to be
manoeuvred around the T-piece laterally
on the wall (simultaneous highrolling).
:: The friction while the probe is stuck
through self-obstruction can be strongly
reduced through a streaming liquid (in the
simplest case, water ). Furthermore,
there’s the possibility of releasing the
stuck probe by means of remote controlled
motorized tongs, slings and additional
endoscope technology. In extreme
urgency, it can be considered whether a
retrieval of the probe by accessing it
from the opposite end of the pipe is
possible. For this, you ought to contact
the manufacturer, who can give you
technically correct instructions for
releasing the probe from the control
device. viZaar even makes service
technicians available for this difficult
task, which will support you on-site.
Further questions in respect of the
selection of the device technology or
settings, all viZaar co-workers and
dealers are gladly available to you for
help.
5 Getting started
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