iTEMP TMT71
Technical data
Hauser
47
Thermocouples as
per standard
Designation
Measuring range limits
Min. span
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)
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.
Linearization/transmission
behavior
Temperature-linear, resistance-linear, voltage-linear
Mains filter
50/60 Hz
Filter
1st order digital filter: 0 to 120 s
Protocol-specific data
DTM device description files
Information and files available at:
www.endress.com
Write protection for device
parameters
• Hardware: Write protection for head transmitter on optional display using DIP switch
• Software: user role concept (password assignment)
Switch-on delay
≤ 7 s, until the first measured value signal is present at the current output. While switch-
on delay = I
a
≤ 3.8 mA
13.3 Power supply
Supply voltage
Values for non-hazardous areas, protected against polarity reversal:
• Head transmitter: 10 V ≤ Vcc ≤ 36 V
• DIN rail device: 11 V ≤ Vcc ≤ 36 V
Values for the hazardous area, see Ex documentation.
