WIKA CTD9100-165 Manual De Instrucciones página 20

Temperature Dry Well Calibrators/Micro Calibration Baths
CTD9100/CTB9100
Firstly, the set value memory SP1, SP2, SP3 or SP4
GB
Secondly, the saved set temperature
Fig. 34: Retrieving the set temperatures display
To receive another saved set value, press the U

key again.
The selected temperature value is immediately
adopted and targeted.
6.3.7 Setting a gradient control and a
temperature profile
It is possible to carry out a gradient control yourself
and thus determine the time in which the set
temperature is reached. The time can be shorter
or longer than the time usually required by the
calibrator/micro calibration bath.
When modifying the set temperature or switch-
ing on the calibrator/micro calibration bath it
is automatically determined which of the gradients
(heating gradient "SLor" or cooling gradient "SLoF")
is to be used.
Additionally, you can ensure that the
calibrator/micro calibration bath switches to the set
temperature in set value memory SP2 as soon as
the set temperature in set value memory SP1 has
been achieved and after a programmed duration
time "dur.t"; this creates a simple temperature
profile.
After switching on the calibrator/micro calibration
bath the temperature profile is automatically carried
out.
Heating gradient "SLor"
The heating gradient "SLor" is active if the reference
temperature is lower than the set temperature.
20 WIKA Operating Instructions Temperature Dry Well Calibrators/Micro Calibration Baths
Each calibrator type has a max. heating capacity,
meaning that only settings < than this heating
capacity are reasonable and extend the time until
the set temperature is achieved.
Fig. 35: Gradient control and temperature profile
Calibrator type
(heating/cooling)
CTD9100-165
CTB9100-165
with silicone oil 20 CS
CTB9100-165
with distilled water
Calibrator type
(heating)
CTD9100-450, -650
CTB9100-225
with silicone oil 20 CS
CTB9100-225
with distilled water
Cooling gradient "SLoF"
The cooling gradient "SLor" is active if the reference
temperature is higher than the set temperature.
Only settings below the cooling capacity of the
calibrator have an effect on the cooling gradients.
The duration time "dur.t" is active if the set
temperature SP1 has been achieved. Subsequently,
the calibrator/micro calibration bath automatically
switches to set temperature SP2.
Setting for
"SLor"
< 7 °C/min
< 3 °C/min
< 5 °C/min
Setting for
"SLor"
< 35 °C/min
< 22 °C/min
< 12 °C/min