6 Operation
16
Connection of Commubox:
Set the Commubox DIP switch to 'HART
Potential levelling
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
modems COMMUBOX FXA191 or FXA195 and PC operating soft-
ware (FieldCare or ReadWin
Xpert SFX100 or the hand operating module DXR375
ble as accessories. (See "Accessories" on page 18.).
1. The TMT112 firmware is identical to iTEMP
TMT112 is designated as TMT122 In the configuration software AMS,
PDM and Fieldcare. In other configuration programs is designated as
TMT112/TMT122.
®
'!
®
®
2000) or using the device configurator Field
®
HART
protocol using the
1
. These units are availa-
®
DIN rail TMT122.