Resistive Temperature Detectors (RTD)
Sense (-)
TEDS
Control
Teds (+)
Teds (-)
TEDS class 2/3
Amplifier
-1
Excitation
Excitation (-)
Sense (+)
Excitation (+)
Signal (-)
Signal (+)
Signal ground
+
-
+V
-V
Signal conditioner
+
-
+
-
U
excit
350 Ω
-
¼ bridge
TEDS
Class 2
optional
RTD
TEDS Class 3
10 MΩ
10 MΩ
Pt10
Pt100
Pt500
Pt1000
Pt2000
Figure A.226:
RTD mode block diagram
Supported sensors
Pt10, Pt100, Pt500, Pt1000 and Pt2000
Type
3 wire and 4 wire possible
In
-
accuracy
Temperature range
Typical in
-
accuracy
(1)(2)
Maximum in
-
accuracy
(1)(2)
Pt10
-
200 °C to 0 °C (
-
328 °F to +32 °F)
±
2.2 °C°C
±
11 °C
0 °C to +850 °C
(+32 °F to +1562 °F)
±
(2.2 °C + 0.07% of reading [°C])
±
(11 °C + 0.35% of reading [°C])
Pt100
-
200 °C to 0 °C (
-
328 °F to +32 °F)
±
0.25 °C
±
1.1 °C
0 °C to +850 °C
(+32 °F to +1562 °F)
±
(0.25 °C + 0.04% of reading [°C])
±
(1.1 °C + 0.055% of reading [°C])
Pt500
-
200 °C to 0 °C (
-
328 °F to +32 °F)
±
0.1 °C
±
0.35 °C
0 °C to +850 °C
(+32 °F to +1562 °F)
±
(0.1 °C + 0.2% of reading [°C])
±
(0.35 °C + 1% of reading [°C])
Pt1000
-
200 °C to 0 °C (
-
328 °F to +32 °F)
±
0.2 °C
±
0.9 °C
0 °C to +850 °C
(+32 °F to +1562 °F)
±
(0.2 °C + 0.4% of reading [°C])
±
(0.9 °C + 2% of reading [°C])
Pt2000
-
200 °C to 0 °C (
-
328 °F to +32 °F)
±
0.35 °C
±
1.7 °C
0 °C to +850 °C
(+32 °F to +1562 °F)
±
(0.35 °C + 0.8% of reading [°C])
±
(1.7 °C + 3.9% of reading [°C])
Maximum cable length
100 m
Measurement range
-
200 °C to 850 °C (
-
328 °F to 1562 °F)
TEDS support
Class 2 and 3 (no software support at release date)
(1)
Linearization curve IEC 60751 (α=0.00385 Ω/Ω/°C) according the International Temperature Scale of 1990 (ITS
-
90).
(2)
Measured with Meatest M632 precision resistance decade.
GEN3i
I3763-3.1 en HBM: public
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