Technical data iTEMP TMT142B
52 Endress+Hauser
Standard Designation Measuring range Measured error (±)
Digital
1)
D/A
2)
Type T (40) –150 to +400 °C (–238 to +752 °F) ME = ± (0.5 °C (0.9 °F) - 0.05% * (MV - LRV))
DIN 43710
Type L (41)
–150 to +900 °C
(–238 to +1 652 °F)
ME = ± (0.5 °C (0.9 °F) - 0.016% * (MV - LRV))
Type U (42)
–150 to +600 °C
(–238 to +1 112 °F)
ME = ± (0.5 °C (0.9 °F) - 0.025% * (MV - LRV))
GOST R8.585-2001 Type L (43)
–200 to +800 °C
(–328 to +1 472 °F)
ME = ± (2.3 °C (4.14 °F) - 0.015% * (MV - LRV))
Voltage transmitter
(mV)
–20 to +100 mV ME = ± 10.0 µV
4.8 µA
1)
Measured value transmitted via HART
®
.
2) Percentages based on the configured span of the analog output signal.
3) Deviations from maximum measured error possible due to rounding.
Total measured error of transmitter at current output = √(Measured error digital² +
Measured error D/A²)
Sample calculation with Pt100, measuring range 0 to +200 °C (+32 to +392 °F), ambient
temperature +25 °C (+77 °F), supply voltage 24 V:
Measured error digital = 0.09 °C + 0.006% x (200 °C - (-200 °C)): 0.08 °C (0.14 °F)
Measured error D/A = 0.03 % x 200 °C (360 °F) 0.06 °C (0.11 °F)
Measured error digital value (HART): 0.08 °C (0.14 °F)
Measured error analog value (current output): √(Measured error digital² +
Measured error D/A²)
0.1 °C (0.18 °F)
Sample calculation with Pt100, measuring range 0 to +200 °C (+32 to +392 °F), ambient
temperature +35 °C (+95 °F), supply voltage 30 V:
Measured error digital = 0.04 °C + 0.006% x (200 °C - (-200 °C)): 0.08 °C (0.14 °F)
Measured error D/A = 0.03 % x 200 °C (360 °F) 0.06 °C (0.11 °F)
Influence of ambient temperature (digital) = (35 - 25) x (0.0013 % x 200 °C -
(-200 °C)), min. 0.003 °C
0.05 °C (0.09 °F)
Influence of ambient temperature (D/A) = (35 - 25) x (0.03% x 200 °C) 0.06 °C (0.11 °F)
Influence of supply voltage (digital) = (30 - 24) x (0.0007% x 200 °C - (-200 °C)),
min. 0.005 °C
0.02 °C (0.04 °F)
Influence of supply voltage (D/A) = (30 - 24) x (0.03% x 200 °C) 0.04 °C (0.72 °F)
Measured error digital value (HART):
√[(Measured error digital² + Influence of ambient temperature (digital)² +
Influence of supply voltage (digital)²]
0.10 °C (0.14 °F)
Measured error analog value (current output):
√[(Measured error digital² + Measured error D/A² + Influence of ambient
temperature (digital)² + Influence of ambient temperature (D/A)² + Influence of
supply voltage (digital)² + Influence of supply voltage (D/A)²]
0.13 °C (0.23 °F)
The measured error data correspond to 2 s (Gaussian distribution)
Physical input measuring range of sensors
10 to 400 Ω Cu50, Cu100, polynomial RTD, Pt50, Pt100, Ni100, Ni120
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