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burns.
Do not touch the handle of the calibrator during use –
it may be very hot and cause burns.
Do not remove the insert from the calibrator before the
insert has cooled down to less than 50°C/122°F.
Caution – Cold surface
If the calibrator has reached a temperature below
0°C/32°F, ice crystals may form on the insertion tube
and on the well. This, in turn, may cause the material
surfaces to oxidize.
To prevent this from happening, the insertion tube and
the well must be dried. This is done by heating up the
calibrator to min. 100°C/212°F until all water left has
evaporated.
Remove the insulation plug while heating up.
It is very important that humidity in the well and
insertion tube is removed to prevent corrosion and frost
expansion damages.
Do not touch the well or insertion tube when these are
below 0°C/32°F – they might create frostbite.
3.3 Preparing the liquid bath calibrator (RTC-
158/250 A/B/C only)
Warning
The calibrator must not be used for any purposes other
than those described in this manual, as it might cause a
hazard.
The calibrator has been designed for indoor use only
and is not to be used in wet locations.
The calibrator is not to be used in hazardous areas,
where vapour or gas leaks, etc. may constitute a danger
of explosion.
The calibrator is not designed for operation in altitudes
above 2000 meters.
The calibrator is a CLASS I product and must be
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