Saia-Burgess Controls AG
Manual I/O-modules for PCD1 │ PCD2 series │ Document 27-600 – Release ENG09 │ 2019-05-01
8-6
PCD2.W380 & PCD3.W380
PCD2/3.W380, 8 analog configurable inputs
8
The module offers the possibility to use NTC temperature sensors. The corre
-
sponding input must be configured in mode “Resistance 0…300 kΩ”.
Mode
„Resistance 0…
300 kΩ“
Resolution
[Bit]
Resolution [measure]
Accuracy
(@ T
Ambient
= 25 °C)
Display
NTC10k
1)
13 Bit
–40…+120 °C: 0,05…0,1 °C
–20…+60 °C: ± 0,6 °C
–30…+80 °C: ± 1,0 °C
–40…+120 °C: ± 2,8 °C
–400…1200
2)
NTC20k
3)
13 Bit
–10…+80 °C:
–20…+150 °C:
0,02…0,05 °C
< 0,15 °C
–15…+75 °C: ± 0,6 °C
–20…+95 °C: ± 1,0 °C
+95…+120 °C: ± 2,5 °C
+120…+150 °C: ± 5,8 °C
–200…1500
4)
¹
The temperature curves for the NTC10k are not standardized and may be different for each manufacturer.
For this reason, the curves can be loaded by the user program using the linearization FBox. The curve of
the NTC10k from Produal is available in a CSV file and can be downloaded from the Support Website.
²
This is the output value of the FBox for linearization. The module gives a resistance 0 … 300’000 Ω.
³ For the same reason of NTC10k, the curve of the NTC20k from Honeywell can be downloaded from the
Support Website.
⁴ This is the output value of the FBox for linearization. The module gives a resistance 0 … 300’000 Ω.
Table 3: Inputs specifications for NTC10k and NTC20k
For an example of the utilization of a NTC sensor, please see the chapter 4 “Ex-
ample of linearization”.
With an input configured in “Diode 0…5000 mV”, it is possible to use integrated
circuit temperature sensors operating as a 2-terminal zener. A typical sensor for
this measurement is the LM235 for example.
Mode
„Resistance
0...300 kΩ“
Resolution
[Bit]
Resolution [measure]
Accuracy
(@ T
Ambient
= 25 °C)
Display
LM235
12 Bit
–40…+125 °C:
0,12 °C
0,2 % of measured value ±1,0 °C
–400…1250
1
1
This is the output value of the FBox for linearization. The module gives a voltage 5’000mV.0 … 5’000 mV.
Table 4: Inputs specifications for LM235
For an example of the utilization of a LM235 sensor, please see the chapter 4
“Example of linearization”.