Pro I: Signal Conditioning and Interface Modules
Pro-TC-8 ISO Rev. A
ADwin
160
ADwin-Pro
Hardware, manual version 2.9, June 2006
5.9.2 Pro-TC-8 ISO Rev. A
The module Pro-TC-8 ISO has 8 inputs for thermocouples and can be oper-
ated with thermocouple types E, J, K, N, R, S or T. For each channel the ther-
moelectric voltage or the temperature may be queried separately via software.
Each channel is equipped with a separate ADC. The module provides a com-
mon cold junction compensation for all temperature inputs.
, left side) sets for each channel separately if
the channel potentials are separated from each other:
– Position right: The channel potentials are separated from each other
(default).
– Position left: The channel’s negative input is connected to ground.
Input signals at the ADCs are digitzed at a stepwise adjustable sample rate. As
soon as a value is queried via software, the module calculates the thermoelec-
tric voltage or the temperature in °Celsius or °Fahrenheit from the last mea-
surement value. All calculation is based upon the norm IEC 584-1.
Calibration of the module is performed by the manufacturer. If needed, please
send the module to the address given on the back of the cover page.
Fig. 279 –
: Block diagram
Input channels
8
Sample rate
7Hz … 3500Hz
Thermocouple types, measuring range
and accuracy
B: 250°C … 1820°C; ±5°C
E: -200°C…1000°C; ±1°C
J: -210°C…1250°C; ±1°C
K: -200°C … 1372°C; ±1°C
N: -200°C…1300°C; ±2°C
R: -50°C … 1768°C; ±3°C
S: -50°C … 1768°C; ±3°C
T: -270°C … 400°C; ±1°C
Resolution
0.1°C
Input resistance
10M
Ω
Input over-voltage
±20V
Offset drift
±30ppm/ºK of full scale range
Connector
Omega Subminiature Connector,
Type SMP
Fig. 280 –
: Specifikation
AD
w
in
-P
ro
bu
s
1
2
8
. .
.
.
. .
Addr.
Addr.-
and
Data-
bus-
Logic
. . .
. .
A
D
LPF
2
nd
ord.
butter-
worth
5 Hz
υ
J1
cold-junction aquisition
A
D
LPF
2
nd
ord.
butter-
worth
5 Hz
Data
A
D
LPF
2
nd
ord.
butter-
worth
5 Hz
. . .
. .
OFF GND
J2
OFF GND
J8
OFF GND
