Technical data iTEMP TMT82
46 Endress+Hauser
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 drop from 4.0 to 3.8 mA
Overranging Linear increase from 20.0 to 20.5 mA
Failure, e.g. sensor breakage, 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. Only the "low" alarm
setting is possible in the SIL mode.
Load
R
b max.
= (U
b max.
- 11 V) / 0.023 A (current
output). Valid for head transmitter
Ub
42 V
1348
1098
250
11 V
0
36.25 V16.75 V
Supply voltage (V DC)
Load ( )Ω
A0014066-EN
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
HART
®
version 7
Device address in the multi-drop mode
1)
Software setting addresses 0 to 63
Device description files (DD) Information and files are available free of charge at:
www.endress.com
www.hartcomm.org
Load (communication resistor) min.250 Ω
1) Not possible in the SIL mode, see Functional Safety Manual SD01172T/09
Write protection for device
parameters
• Hardware: Write protection for head transmitter on optional display using DIP switch
• Software: Write protection using password
Switch-on delay • Until start of HART
®
communication, approx. 10 s
2)
, with switch-on delay = I
a
≤ 3.8 mA
• Until the first valid measured value signal is present at the current output, approx. 28 s,
with switch-on delay = I
a
≤ 3.8 mA
2) Does not apply for the SIL mode, see Functional Safety Manual SD01172T/09
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