WIKA CTM9100-150 - Handbuch (Seite 22)

22 WIKA operating instructions, models CTD9100, CTB9100, CTM9100
11263911.02 05/2014 GB/D
GB
7. Operating elements of the calibrator/micro calibration bath
7. Operating elements of the calibrator/micro calibration bath
There are three modes available for operation
Calibration mode
In this standard operating state the calibration of test items
can be made.
Set-point mode
In this mode, the set temperature is entered.
Main menu
In this mode, all settings, such as specifying the desired
temperature or setting the control parameters are made.
7.1 Selection of the operating modes for the CTM9100-150
To operate the multi-function calibrator in the desired mode
of operation, first specify the correct linearisation for the
controller. In the main menu (via the P button) select the
desired function using the arrow keys.
LI Operates as a micro calibration bath
DB Operates as a dry block
Ir Operates as an infrared black body source
SU Operates as a surface temperature calibrator
The desired function is accepted using the P button.
On the main screen, the desired linearisation (LI, DB, Ir or
SU) is displayed in the PV line every 5 secs.
7.1.1 Method of operation in calibration mode within
individual operating modes
Micro calibration bath operating mode (possible with or
without insert for liquids)
■ Insert the magnetic stirrer and sensor basket.
■ Fill the micro calibration bath (see chapter 6.3.2 “Filling
the micro calibration bath”).
■ Set the speed of the magnetic stirrer, in order to achieve
the best homogeneity possible.
■ In order to ensure the correct linearisation, set LI in the
controller. For this, press the P button for approx. 5 secs.
and confirm the appropriate setting in the main menu with P.
■ Set the switch to the left of the controller to internal
reference.
Angled thermometers, large-diameter thermometers or
thermometers with special designs cannot be calibrated
with a dry-well calibrator. For this reason the multi-function
calibrator also has the possibility to function as a stirred liquid
bath. The liquid is circulated using a magnetic stirrer and thus
provides very good temperature distribution within the bath.
Select the liquid used depending upon the desired calibration
temperature.
Dry-block operating mode
■ Cleaning the tank (if needed)
■ Inserting the insert (aluminium)
■ Set the speed of the magnetic stirrer to “0”.
■ In order to ensure the correct linearisation, set DB in the
controller. For this, press the P button for approx. 5 secs.
and confirm the appropriate setting in the main menu with P.
■ Set the switch to the left of the controller to external
reference. Connect the delivered external reference in to
the socket provided and slide into the appropriate bore in
the insert.
The insert has several bores into which the thermometer
probes being calibrated and the external reference, for
comparative calibration, can be inserted. The block is either
heated or cooled to the desired calibration temperature.
Once a stable temperature has been reached, the
temperature probes to be calibrated can be compared with
the reference thermometer.
Infra-red operating mode
■ Cleaning the tank (if needed)
■ Insert the insert (hollow, ceramic coated)
■ Set the speed of the magnetic stirrer to “0”.
■ In order to ensure the correct linearisation, set Ir in the
controller. For this, press the P button for approx. 5 secs.
and confirm the appropriate setting in the main menu with P.
■ Set the switch to the left of the controller to external
reference. Connect the delivered external reference into
the socket provided and slide it into into the appropriate
bore on the outer edge of the insert.
The measuring spot of the pyrometer being calibrated must
be smaller than the diameter of the infrared insert.
Surface operating mode
■ Cleaning the tank (if needed)
■ Insert the insert (hollow, fitted with a collar at the top)
■ Set the speed of the magnetic stirrer to “0”.
■ In order to ensure the correct linearisation, set SU in the
controller. For this, press the P button for approx. 5 secs.
and confirm the appropriate setting in the main menu with P.
■ Set the switch to the left of the controller to external
reference. Connect the delivered external reference in to
the socket provided and slide into the appropriate bore
directly under the surface of the insert.