ETAS
Technical Data
ES650.1 - User Guide
33
5.9.4
Thermocouple Inputs
Reference temperature T
0
for
T
g
,
T
d
and
T
d
is 25 °C (equivalent to
298.15 K).
Resolution
21 bits; corresponding to 0.01 K for J-,
K- and N-type thermocouples
Sampling rate
0.1 to 10 samples/sec, configurable for
each channel
Measuring range
+250 to +1820 °C (type B)
-200 to +1000 °C (type E)
-210 to +1200 °C (type J)
-200 to +1372 °C (type K)
-200 to +1300 °C (type N)
-50 to +1768 °C (type R)
-50 to +1768 °C (type S)
-200 to +400 °C (type T)
Cutoff frequency
10 Hz
Input impedance
> 10 M
|| 10 nF
Maximum inaccuracy
T
g
0.050 % + 5.00 K for type B
0.050 % + 0.20 K for type E
0.030 % + 0.20 K for type J
0.025 % + 0.25 K for type K
0.035 % + 0.38 K for type N
0.050 % + 2.0 K for type R
0.050 % + 2.0 K for type S
0.050 % + 0.30 K for type T
Maximum temperature drift
T
d
±0.1 K/K for type B
±0.0040 K/K for type E
±0.004 K/K for type J
±0.005 K/K for type K
±0.008 K/K for type N
±0.0400 K/K for type R
±0.0400 K/K for type S
±0.0050 K/K for type T
Maximum inaccuracy
T
i
depend
-
ing on the internal resistance of the
thermocouple at internal resis
-
tances > 50
±0.0800 K/
for type B
±0.0030 K/
for type E
±0.003 K/
for type J
±0.004 K/
for type K
±0.006 K/
for type N
±0.0300 K/
for type R
±0.0300 K/
for type S
±0.0040 K/
for type T
Maximum inaccuracy of cold junc
-
tion compensation
T
cjc
±1 K
Possible increased measurement
error under influence of electromag
-
netic fields in industrial environ
-
ments
T
emc
+16 K /-45 K
Maximum temperature drift of cold
junction compensation
T
d
±0.008 K/K
Maximum allowed input voltage
32 V DC
