Hioki DM7275-01 - Page 84

81
Correcting Measured Values
3
1
2
3
Set the reference temperature and touch
ENTER.
(Default setting: 20°C; valid setting range:
-10.0°C to 60°C)
4
1
2
3
Setthetemperaturecoefcientand
touch ENTER.
(Default setting: 0 ppm/°C; valid setting
range: -1000 V ppm/°C to 1000 ppm/°C)
+/− Toggles between positive and
negative values.
˄ Increases the value by 1.
˅ Decreases the value by 1.
CLR Deletes the entire value.
CANCEL Cancels the setting and returns to
the previous screen.
The instrument’s temperature compensation function corrects temperature by treating the
temperature dependence of the measurement target as a linear function. The error will increase
if the measurement target’s temperature dependence diverges from that linear function.
For example, if the temperature coefcient α has been set so that the ambient temperature
T
1
is corrected to the reference temperature
T
0
, the error will increase if the ambient temperature
changes to
T
2
. (See gure below.)
T
0
V
T0
T
1
T
2
Large error
Small error
Voltage
Reference
temperature
Ambient
temperature
Ambient
temperature
6
Useful Functionality
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