Saia-Burgess Controls AG
Manual I/O-modules for PCD1 │ PCD2 series │ Document 27-600 – Release ENG09 │ 2019-05-01
6-72
I/O modules PCD3
PCD3.W3x0
6
Formulae for temperature measurement
For Ni1000 (PCD3.W340)
Validity:
Temperature range - 50…+ 210
°C
Computational error: ± 0.5
°C
260 • DV
2616
T= - 188.5 +
- 4.676 • 10
-6
• (DV - 2784)
2
For Pt1000 (PCD3.W340)
Validity:
Temperature range - 50…+ 400
°C
Computational error: ± 1.5
°C
450 • DV
2474
T= - 366.5 +
+ 18.291 • 10
-6
• (DV - 2821)
2
Resistance measurement up to 2.5 kΩ
(PCD3.W340)
Special temperature sensors or any other resistances up to 2.5 kΩ can be con
-
nected to the PCD3.W340. The digital value can be calculated as follows:
DV=
16 380 • R
(7 500 + R)
where 0 ≤ DV ≤ 4095 and R = the resistance to be measured in Ω.
For Ni 100 (PCD3.W350)
Validity:
Temperature range - 50…+ 250
°C
Computational error: ± 1.65
°C
300 • DV
3628
T= - 28.7 +
- 7.294 • 10
-6
• (DV - 1850)
2
For Pt100 (PCD3.W350)
Validity:
Temperature range - 50…+ 600
°C
Computational error: ± 1
°C
650 • DV
3910
T= - 99.9 +
+ 6.625 • 10
-6
• (DV - 2114)
2
For Pt1000 (PCD3.W360)
Validity:
Temperature range - 50…+ 150
°C
Computational error: ± 0.25
°C
200 • DV
2509
T= - 178.1 +
+ 3.873 • 10
-6
• (DV - 2786)
2
T = temperature
DV = digital value