WIKA CTD9300 Series, Operating Instructions Manual

Page: 15 / 134

9037926
07/2015
15 WIKA Operating Instructions CTD9300 Rev. 1
Temperature Dry Well Calibrators CTD9300
2. Device Description
GB
2.5.1 Special Adapting Sleeves
Sleeves for CTD9300 -165 calibrators are made of aluminium,
sleeves for CTD9300 -650 calibrators are made of brass. The
outside dimensions of the two sleeves are Ø 28 mm x 150 mm of
length.
Special adapting sleeves can be customized in various designs.
Sleeves with multiple bores are also available. Limits are placed
only by the mechanical machinability of the sleeve blanks.
When choosing the sleeve design, however, please observe that the
overall measurement uncertainty declines with an increasing
number of bore holes and with increasing bore diameter.
The actual measuring uncertainty when using a special adapting
sleeve can be determined only when the bore diameter and the
number of bores as well as the design and material of the
thermometers to be calibrated is exactly known.
If you require multiple sleeves, please take the following into
consideration:
„ if possible, the bores should be arranged on a pitch circle to
ensure uniform temperature distribution.
„
for product engineering reasons, there must be a minimum
distance between the bores and to the edge of the sleeve. As a
rule, this distance should not be less than 2 mm.
„
the bore diameter should be larger than the thermometer to be
tested by at least 7 %.
2.5.2 Transport Case
As an option, we offer a robust transport case for your calibrator.
We recommend the use of a transport case, if you frequently use
the device for on-site calibrations and thus need to transport it
often.
The case does not only protect your calibrator against environ-
mental influences such as dust, dirt and humidity but also against
mechanical damage that may occur due to impacts and vibrations.