3.
Press [OK] to confirm.
4.
Change the new value with the arrow buttons.
5.
Press [OK] to confirm.
The setting is changed.
5.7 Change the calibration of the temperature probe
A calibrated reference thermometer with the desired
level of accuracy is necessary. Otherwise you should
not change the calibration.
If a temperature deviation is discovered during inspection of the
device with a reference thermometer, the offset value (that’s the
additive part of the characteristic line) of the internal measurement
chain can be adjusted or a 2-point calibration carried out with the
menu item
Calibration
.
The reference thermometer must, in accordance with the require-
ments of the calibration certificate, be incorporated into the inlet of
the device.
1.
Select the
Menu
Setup
Calibration
intern Pt1000
Offset
menu item.
2.
Enter the temperature value read off the reference thermom-
eter into the device.
You can change the displayed temperature value
in the device within the range of
±
3 K.
3.
Press [OK] to confirm the new value.
The new value has been accepted.
1.
Set a low set temperature T
set
in the device (for example
10 °C).
2.
Wait until the displayed bath temperature T
int
matches the set
temperature T
set
.
3.
Select the
Menu
Setup
Calibration
intern Pt1000
2-Punkt lower
menu item.
4.
Enter the temperature value read off the reference thermom-
eter into the device.
You can change the displayed temperature value
in the device within the range of
±
3 K.
5.
Press [OK] to confirm the new value.
The lower value has been accepted.
6.
Set a high set temperature T
set
in the device (for example
60 °C).
Offset
2-point calibration
Operation
LOOP
25
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