ST2516 Series Operation Manual
21
Anti-corrosion alloy Nickel: 2.5 to 4.0
Silicon: 0.5 to 1.0
---
0.25 to 0.45
980 to 1770
Soft aluminum
Aluminum>99.5
2.7
0.63 to 0.64
42
Hard-drawn
aluminum
Aluminum>99.5
2.7
0.60 to 0.62
40
Aluminum alloy
Silicon: 0.4 to 0.6
Magnesium: 0.4 to
0.5
Aluminum: 99.2 to
98.9
---
0.50 to 0.55
36
NOTE: Calculating the conductivity and the temperature coefficient of the copper wire:
Diameter [mm]
Annealed copper
(Conductivity)
Tinning and annealed
copper (conductivity)
Hard-drawn copper
(Conductivity)
0.01 to 0.26
0.98
0.93
---
0.26 to 0.50
0.993
0.94
0.96
0.50 to 2.00
1.00
0.96
0.96
2.00 to 8.00
1.00
0.97
0.97
Temperature coefficient (
α
t
) varies with environment temperature and material conductivity. It is
supposed that the temperature coefficient of a material at 20
℃ is
α
20
, its temperature coefficient
(
α
ct
) at t
℃ will be as the following expression:
α
ct
=
1
1
α
20
x
c
+
(
t−20
)
3.6.3
Types of Temperature Sensor
There are two temperature input types: Pt and Analog Input.
PT500
Touch the
T.SENS
soft key to select the temperature input type. Select PT and the input type of
the temperature is platinum resistor temperature sensor. At this time, standard configuration of
“PT500 temperature sensor” should be inserted in the temperature measurement input terminal.
Analog Input
Touch the
T.SENS
soft key to select the temperature input type. AnLG_In is analog input(the input
voltage is 0-2V) and the corresponding forma is
：
T2−T1
V2−V1
*(Input Voltage) +
T1V2
–
T2V1
V2−V1
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