Endress+Hauser iTEMP TMT162 Operating Instructions Manual page 47

iTEMP TMT162
Thermocouples as
Description
per standard
Type L (Fe-CuNi) (41)
DIN 43710
Type U (Cu-CuNi) (42)
GOST
Type L (NiCr-CuNi) (43)
R8.8585-2001
• Internal cold junction (Pt100)
• External cold junction: configurable value –40 to +85 °C (–40 to +185 °F)
• Maximum sensor wire resistance 10 kΩ (If the sensor wire resistance is greater than 10 kΩ, an error message is output in
accordance with NAMUR NE89.)
Voltage
Millivolt transmitter (mV)
transmitter (mV)
Type of input
Output signal
Failure information
Endress+Hauser
Measuring range limits
–200 to +900 °C (–328 to +1 652 °F)
–200 to +600 °C (–328 to +1 112 °F)
–200 to +800 °C (–328 to +1 472 °F)
–20 to 100 mV
The following connection combinations are possible when both sensor inputs are assigned:
RTD or resistance
transmitter, 2-wire
Sensor input 2
RTD or resistance
transmitter, 3-wire
RTD or resistance
transmitter, 4-wire
Thermocouple (TC),
voltage transmitter
13.2 Output
Analog output
Signal encoding
Data transmission rate
Galvanic isolation
Failure information as per NAMUR NE43:
Failure information is created if the measuring information is missing or not valid. A
complete list of all the errors occurring in the measuring system is created.
Underranging
Overranging
Failure e.g. sensor failure; sensor short-circuit
–150 to +900 °C (–238 to +1 652 °F)
–150 to +600 °C (–238 to +1 112 °F)
–200 to +800 °C (+328 to +1 472 °F)
Sensor input 1
RTD or RTD or
resistance resistance
transmitter, transmitter,
2-wire 3-wire
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4 to 20 mA, 20 to 4 mA (can be inverted)
FSK ±0.5 mA via current signal
1200 baud
U = 2 kV AC, 1 min. (input/output)
Linear drop from 4.0 to 3.8 mA
Linear increase from 20.0 to 20.5 mA
≤ 3.6 mA ("low") or ≥ 21 mA ("high"), can be selected
The "high" alarm setting can be set between 21.5 mA and
23 mA, thus providing the flexibility needed to meet the
requirements of various control systems.
Technische Daten
Min. span
50 K (90 °F)
50 K (90 °F)
5 mV
RTD or
Thermocouple
resistance
(TC), voltage
transmitter,
transmitter
4-wire
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- -
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