Barcon LHC/PPC (HART)
Installation
20
D
a
te of Is
s
u
e
25.10.2001
Connecting the
handheld terminal
•
Do not replace the battery of the handheld terminal in the explosion
hazardous area.
•
For a BARCON with FM or CSA certificate: Electrical connection according
to "Installation drawing" (enclosed in the packing of the Barcon).
•
For correct transmission of the communication signal, a minimum
resistance of 250
W
must be present between the connection points and
the power supply.
Fig.2.14:
The handheld terminal can be connected anywhere along the 4 mA … 20 mA line.
Connecting the
HART- Modem
for operating with
PACTware
The HART modem connects the Barcon with a HART protocol to the RS 232 C serial
interface of a personal computer. This enables the Barcon to be remotely operated with
operating program PACTware.
Fig.2.15:
The HART modem can be connected anywhere along the 4 mA … 20 mA line.
4 mA ... 20 mA
min. 250
Ω
I
O
I
O
1
2
+
–
3
Zero
Damping
on
off
Span
Display
Transmitterpower supply e. g. KFD2-STL3-Ex.1
any device
1
2
+
–
3
Zero
Damping
on
off
Span
Display
4 mA ... 20 mA
Transmitter power supply e. g. KFD2-STL3-Ex.1
PC with PACTware
minimum
Total resistance
250
W
HART
modem
