Specifications

13-352 | OWNER’S GUIDE
DAQP-THERM Input ranges and detailed specications
Thermocouple
Type Standard
Input range Accuracy
min
[°C]
max
[°C]
-270 to
-200 °C
[°C]
-200 to
-100 °C
[°C]
-100 to 0 °C
[°C]
0 to 100 °C
[°C]
100 °C to fullscale [%
of reading + °C]
J DIN EN 60584-1 -270 1372 6.70 0.70 0.35 0.26 0.027 0.26
K DIN EN 60584-1 -210 1200 0.68 0.60 0.32 0.25 0.019 0.25
T DIN EN 60584-1 -270 400 4.37 0.69 0.37 0.26 0.23
R DIN EN 60584-1 -50 1760 0.85 0.59 0.009 0.44
S DIN EN 60584-1 -50 1760 0.77 0.58 0.012 0.45
N DIN EN 60584-1 -270 1300 9.14 0.77 0.37 0.28 0.017 0.27
E DIN EN 60584-1 -270 1000 4.25 0.60 0.33 0.24 0.018 0.23
L DIN 43710 0 900 0.25 0.33
C ASTM E988-96 0 2310 0.36 0.045 0.33
U DIN 43710 -200 600 0.64 0.37 0.26 0.24
0 to 500°C > 500°C
B DIN EN 60584-1 0 1820 0.26 0.44
All values given in Celcius on these pages.
Software programmable module range
Regardless which input mode is selected, the module measurement range is completely free programmable.
Simply by entering the lower and upper limit the amplier adjusts its gain and offset factors automatically.
The amplier output is scaled to either ±5 V or 0 to 5 V. Converting a nonlinear temperature signal from a
thermocouple to a linear analog output is one of the key features of this amplier.
Open thermocouple detection
The open thermocouple detection of the DAQP-THERM consists of an 100 MΩ pull-up resistor. That typi-
cally drives a 50 nA current through the sensor which normally does not take effect on the measurement, but
is enough to generate an input overow if the sensor breaks. Despite of this small current, there are sensors
available where this current generates a big error. These sensors are typically non-contact infrared ther-
mocouples and fast response thermocouples. In that case the open thermocouple detection can simply be
deactivated in the software. Sensors with up to 50 kΩ output impedance can be measured in this way.
CJC
The DAQP-THERM comes with an integrated cold junction compensation sensor with an absolute accuracy
of ±0.2 °C. In order to archieve this accuracy the sensor has to be connected for at least 5 minutes to the
thermocouple connector (CJC equilibrium time).