MI 3250 MicroOhm 10A
Main menu
25
4.3.5 Temperature Compensation
The temperature compensation is used to adjust the measured resistance, which depends
on the ambient temperature, to the value it would have at the reference temperature.
Figure 4.10: Compensation menu
Figure 4.11: Coefficient menu
Keys in Temperature Compensation menu:
Select the parameter to be changed.
<
Compensation
> Set compensation [On, Off];
<
Set Reference Temp
> Reference temperature value;
<
Temperature
> Ambient temperature settings [Manual, Probe];
<
Set Ambient Temp
> Ambient temperature value;
<
Coefficient Menu
> Coefficient settings (see figure 4.12);
Decrees or increase the parameter.
SELECT
Enters Coefficient menu.
ESC
Returns to the
Settings menu
(changes are stored automatically).
Keys in Coefficient menu:
Select the parameter to be changed.
Decrees or increase the parameter.
ESC
Returns to the
Temperature Compensation
menu
(changes are stored
automatically).
Resistance measurement with the temperature compensation:
Temperature compensation calculation
temp
amb
temp
ref
R
R
temp
amb
temp
ref
_
1
_
1
_
_
Legend:
temp
ref
R
_
Compensated resistance calculated to the reference temperature.
temp
amb
R
_
Resistance measured at the ambient temperature.
C
ppm
/
Temperature coefficient of the measured object (Cu, Al
…, user
defined).
C
temp
ref
_
Reference temperature which the measurement is referred to
(user defined).
C
temp
amb
_
Ambient temperature measured with the temperature probe or
user defined.