ST2516 Series Operation Manual
19
ST2516B has no OVC function.
3.6
<TC/∆t SETUP>
(ST2516)
Touch the main menu. And then touch the soft key
TC/∆t SETUP
to enter into the
TC/∆t
setup
page shown as figure 3-6.
FILE
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11:36:54
MEAS
SETUP
TC/
Δ
t
SETUP
BIN
SETUP
SYSTEM
SETUP
<
TC/
Δ
T SETUP>
t0(
℃
)
20.0
α
t0
(
ppm)
3390
R1(
Ω
)
100.00
t1(
℃
)
23.0
k
236.0
V1(v)
0.00
T1(
℃
)
0.0
V2(v)
1.00
T2(
℃
)
500.0
TC/
Δ
t
OFF
T.SENS
Pt
FUNC
R
Figure 3-
6 TC/∆t setup
3.6.1
Temperature Correction (TC)
Temperature correction (TC)
: By this function, the resistance tested under the current
environment temperature will be converted to a resistance value under the user-set environment
temperature. For instance, a resistor is tested as 100Ω under 20
℃
. If user sets the temperature
as 10
℃
, after correction, the value will be disp
layed as 96.22Ω. This is realized by formulary
conversion.
Formula: Rt=Rt0*{1+
ɑt0*(t
-t0)}
Rt
Resistance measured under the current environment temperature
Rt0
Resistance after correction
t0
Preset temperature
t
Current environment temperature
ɑ
t0
Temperature coefficient of the material
For example: A resistor is measured as 100Ω under 20
℃ (Suppose th
e temperature coefficient as
3930ppm), the resistance under 10
℃ will be 96.22Ω.
𝑹𝒕𝟎
=
𝐑𝐭
𝟏+
𝛂
𝐭𝟎
∗
(
𝐭−𝐭𝟎
)
=
100
1+
(
3930
x
10
−6
)
x
(
20−10
)
=96.22Ω
