Operation - Endress+Hauser iTEMP HART DIN rail TMT122 Bedienungsanleitung

Potential levelling

6 Operation

Presettable parameters
Standard settings
14
Please take note when installing the transmitter: The screen on the
4 to 20 mA signal output must have the same potential as the screen at the
sensor connections!
In plants with strong electromagnetic fields, screening of all cables with a low
ohm connection to ground is recommended.
It is recommended that screened cable should be used in installations outside
buildings, due to the danger of lightning strikes.
Setting up of the transmitter is done using the HART
®
HART modem COMMUBOX FXA191 and PC operating software
(COMMUWIN II, FieldCare or ReadWin
module DXR275/375. These units are available as accessories.
(See "Accessories" on page 15.).
The following table shows the structure of the PC configuration software
®
ReadWin 2000 interactive menu operation:
• Sensor type
• Connection mode (2-, 3- or 4-wire connection)
• Units (°C/°F)
• Measurement range start (depends on sensor)
• Measurement range end (depends on sensor)
• Coefficient X0 to X4 (on sensor type polynom RTD/TC)
• Temperature compensation (on sensor type polynom TC)
®
protocol using the
®
2000) or the hand operating