Siemens sitrans tr200, Operating Instructions Manual

Page: 61 / 78

Technical specifications
SITRANS TR200/TR300
Operating Instructions, 04/2007, A5E01071992-01
61
Calculation of differential value 2 identical thermocouples (TC)
(TC1 - TC2 or TC2 - TC1)
Response time ≤ 250 ms for 1 sensor with broken wire monitoring
Broken wire monitoring Can be switched off
Cold junction compensation Internal: with integrated resistance thermometer Pt100
external: with external Pt100 IEC 60751 (two-wire or
three-wire input)
external fixed: Cold junction temperature can be set as
fixed value
Measuring range Programmable
Min. measuring span Min. 50 to 100 °C (90 to 180 °F)
Characteristic curve Linear to temperature or special characteristic curve
Millivolt transmitter
Measured variable DC voltage
Sensor type DC voltage source (DC voltage source is possible via a
resistor that is connected externally)
Units of measurement mV
Response time ≤ 250 ms for 1 sensor with broken wire monitoring
Broken wire monitoring Can be switched off
Measuring range Parameterizable max. -100 to 1100 mV
Min. measuring span 2 mV or 20 mV
Overload capacity of the input -1.5 VDC to 3.5 VDC
Input resistance ≥ 1 MΩ
Characteristic curve Linear to voltage or special characteristic curve
Output
Output signal 4 to 20 mA, two-wire line
SITRANS TR300 supports communication additionally
via HART Rev. 5.9
Auxiliary power supply DC 11 to 35 V (to 30 V for Ex)
Max. load (U
aux
-11 V)/0.023 A
Overshoot range 3.6 mA to 23 mA , infinitely adjustable
(default range: 3.84 mA to 20.50 mA)
Error signal (e.g. in case of sensor
failure)
3.6 mA to 23 mA , infinitely adjustable
(default value: 22.8 mA)
Sampling cycle 0.25 s
Damping Software filter 1st order 0 to 30 s (can be set in
parameters)
Security Against reverse polarity