Technical data iTEMP TMT142B
48 Endress+Hauser
Thermocouples as
per standard
Designation Measuring range limits Min. span
• Reference junction: internal, with preset value –40 to +85 °C (–40 to +185 °F) or with external sensor
• 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
transmitter (mV)
Millivolt transmitter (mV) –20 to 100 mV 5 mV
13.2 Output
Output signal
Analog output 4 to 20 mA, 20 to 4 mA (can be inverted)
Signal encoding FSK ±0.5 mA via current signal
Data transmission rate 1200 baud
Galvanic isolation U = 2 kV AC for 1 minute (input/output)
Failure information 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 Linear decrease from 4.0 to 3.8 mA
Overranging Linear increase from 20.0 to 20.5 mA
Failure e.g. sensor failure; sensor short-circuit ≤ 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.
Load
Load R
b max.
= (U
b max.
- 11 V) / 0.023 A (current
output).
Ub
36 V
1087
837
250
11 V
0
30.25 V16.75 V
Ω
A0041423
Linearization/transmission
behavior
Temperature-linear, resistance-linear, voltage-linear
Network frequency filter 50/60 Hz
Filter 1st order digital filter: 0 to 120 s
Protocol-specific data
Manufacturer ID 17 (0x11)
Device type ID 0x11D1
HART
®
specification 7
Device address in multi-drop mode Software setting addresses 0 to 63
To Next Page
Loading...
