ST2515 Operation Manual
22
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
Conductivity and temperature coefficient of metal and alloy
(3)
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°C is α
20
, its temperature coefficient
(α
ct
) at t °C will be as the following expression:
=
3.6.2
Types of Temperature Sensor
There are two temperature input types: Pt and Analog Input.
3.6.3
Parameter Setting
t0: Touch this key, the numeric keyboard will pop up and you can input the reference
temperature.
α
t0
: Touch this key, the numeric keyboard will pop up and you can input the reference
temperature.
R1: Touch this key, the numeric keyboard will pop up and you should record and manually
input the resistance value gained at the start of the test.
t1: Touch this key, the numeric keyboard will pop up and you should record and manually
input the resistance temperature gained at the start of the test.
k: Touch this key, a numeric keyboard will pop up and you can input the value.
V1: Touch this key, a numeric keyboard will pop up and you can input the value.
V2: Touch this key, a numeric keyboard will pop up and you can input the value.
T1: Touch this key, a numeric keyboard will pop up and you can input the value.
