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Temperature Dry Well Calibrators/Micro Calibration Baths
CTD9100/CTB9100
5. Start-up of the Calibrator/Micro Calibration Bath
5.1 Operating position
The calibrator/micro calibration bath has to be
placed in a vertical standing position for operation,
this position guarantees optimum temperature
distribution in the metal block/liquid bath.
5.2 Sleeves for the metal block
Fig. 8: Sleeves
In order to achieve the best possible accuracy, the
utilization of exactly fitting sleeves is necessary. The
diameter of the test specimen has to be determined
precisely. The bore in the sleeve results from the
addition of +0.5 mm.
Remove the sleeves after use with
the aid of the sleeve remover, and
remember to clean the sleeve and
the block. This prevents the sleeves
becoming jammed in the heating
block.
Distilled water
Dow Corning 200 fluid with 5 CS
Dow Corning 200 fluid with 10 CS
Dow Corning 200 fluid with 20 CS
Dow Corning 200 fluid with 50 CS
WIKA Operating Instructions Temperature Dry Well Calibrators/Micro Calibration Baths
5.3 Preparing the micro calibration bath
In order to achieve the best possible accuracy of
a micro calibration bath, it has to be filled with a
suitable calibration liquid.
5.3.1 Characteristics of the calibration liquids
Different calibration liquids supply varying
calibration results due to their specific
characteristics. Adjustment to the respective
calibration liquid has to be carried out by the
manufacturer.
We recommend the following calibration liquids for
the various temperature ranges:
When using water as the calibration liquid:
Only use distilled or demineralised water,
otherwise excessive limescale and soiling will
build up in the calibrator tank.
When using silicone oil as the calibration liquid:
Only use the silicone oil recommended in these
operating instructions.
Always read the safety data sheet supplied with
the silicone oil before using it.
Always ensure adequate ventilation when
working with silicone oil, since hazardous
substances can be released.
Prevent silicone oil from coming into contact with
your eyes.
Since silicone oil is hygroscopic, always use the
transport lid to close the calibration bath after
use.
Calibration Range
5 °C
to
-40 °C
to
123 °C
-35 °C
to
155 °C
7 °C
to
220 °C
25 °C
to
270 °C
Flash point
90 °C
n.a.
133 °C
165 °C
230 °C
280 °C
GB
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