Operation - Endress+Hauser iTEMP TMT111 Bedienungsanleitung

TMT111
Potential levelling

6 Operation

12
Please take note when installing the transmitter remotely in a field housing:
The screen on the 4 to 20 mA signal output must have the same potential as
the screen at the sensor connections!
When using earthed thermocouples screening of the output 4 to 20 mA cable
is recommended. In plants with strong electromagnetic fields screening of all
cables with a low ohm connection to the transmitter housing is recom-
mended.
PC-Configuration software ReadWin
Presettable parameters
Standard settings • Sensor type
• Connection (2-, 3- or 4-wire connection)
• Units (°C/°F)
• Measurement range limits (depends on selected sensor type)
Expanded settings • Cold junction compensation (internal/external on TC con-
nection)
• Temperature external (on TC with cold junction compensa-
tion external)
• Compensation resistance (0 to 20 Ω) on 2-wire connection
• Fault condition reaction (
uration
• Output (4 to 20 mA / 20 to 4 mA)
• Filter, optional from 0 to 8 s
• Zero point, offset (-9.9 to +9.9 K / -18 to +18 °F)
• TAG (Measurement point description)
Service functions • Simulation analog output (on/off)
• Password assignment
®
2000 interactive menu operation:
≤
3.6 mA or
≥ ≥
21.0 mA, output 21.5 mA is guaranteed
≥
21.0 mA), for config-
Endress+Hauser