18
WIKA operating instructions, model CTD4000
14366831.01 05/2020 EN/DE
EN
7. Operating the calibrator
7.3.2 First menu level - General settings
▶
By pressing the
[F]
button, menu level 1 is accessed.
▶
With the
[F]
button, the menu functions can be scrolled through.
Function
Meaning
SP
Set point
Setting the set temperature.
1. With the
[▲]
or
[▼]
button, set the set point.
2. Confirm the entry with the
[E]
button.
SEt2
Set point 2
Setting of set temperature 2, which the calibrator should approach with a certain gradient within a ramp.
1. With the
[▲]
or
[▼]
button, set the set point 2.
2. Confirm the entry with the
[E]
button.
The value of
SEt2
must be always higher than
SP
.
Grd
Gradient
Heating or cooling change rate during the change of the temperature value
SP
to
SEt2
or
SEt2
to
SP
.
1. With the
[▲]
or
[▼]
button, set the gradient.
2. Confirm the entry with the
[E]
button.
The gradient must be smaller than the maximum specified value in the technical specifications (max.
15 °C/min).
run
Switch test
1. With the
[▲]
or
[▼]
button,
select
ON
or
OFF
.
2. With the
[E]
button, start or stop the switch test.
The temperature dry-well calibrator reaches temperature
SP2
from
SP
with the selected heating rate of
change. The basis is the same temperature with which the ramp was confirmed. If the value of
SP2
is lower
than the
SP
, the calibrator will not accept the
run
and the instrument will display
“Err”
. The
LED
will flash to
indicate that the function is active. The set point will change the value following the selected slope rate. When
the internal temperature reaches the
SEt2
set point, the internal temperature will decrease with the cooling
slope rate; the
SP
value will be considered as the new set point. During the ramp program, the derivative
parameter will not be considered. During the ramp program, the
LED
on the right of the set point flashes and
the set point increases or decreases the value.
