SBC PCD1 Series Manual page 206

Saia-Burgess Controls AG
Formulae for temperature measurement
For Ni 1000 (PCD2.W340)
Validity:
Computational error: ± 0.5 °C
260 • DV
T= - 188.5 +
For Pt 1000 (PCD2.W340)
Validity:
Computational error: ± 1.5 °C
450 • DV
T= - 366.5 +
Resistance measurement up to 2.5 kΩ (PCD2.W340)
Special temperature sensors or any other resistances up to 2.5 kΩ can be connected
to the PCD2.W340. The digital value can be calculated as follows:
16 380 • R
DV=
(7 500 + R)
where 0 ≤ DV ≤ 4095 and R=the resistance to be measured in Ω.
For Ni 100 (PCD2.W350)
Validity:
Computational error: ± 1.65 °C
300 • DV
T= - 28.7 +
For Pt 100 (PCD2.W350)
Validity:
Computational error: ± 1 °C
650 • DV
T= - 99.9 +
For Pt 1000 (PCD2.W360)
Validity:
Computational error: ± 0.25 °C
200 • DV
T= - 178.1 +
T = temperature
DV = digital value
Manual Manual PCD 1 / PCD 2 Series │ D ocument 26 / 737 EN22 │ 2 013-11-26
Temperature range - 50 ... + 210 °C
- 4.676 • 10 -6
• (DV - 2784)
2616
Temperature range - 50 ... + 400 °C
-6
+ 18.291 • 10
2474
Temperature range - 50 ... + 250 °C
- 7.294 • 10 -6
• (DV - 1850)
3628
Temperature range - 50 ... + 600 °C
-6
+ 6.625 • 10 • (DV -2114)
3910
Temperature range - 50 ... + 150 °C
-6
+ 3.873 • 10
2509
2
2
• (DV - 2821)
2
2
2
• (DV -2786)
Input/output (I/O) modules
Analogue input modules
5
5-70