Elgas miniELCOR, Руководство по эксплуатации, Страница: 33 / 131

miniELCOR
26
Using the calculation equations, the value of the output can be parameterized as
proportional to pressure, flow, daily consumption, etc. The CL-1 module must be
connected to the converter via a safety barrier (DATCOM-K3).
GND +
HF
+
LF
HF-
LF
+
HF
+
-
+
-
+
RS232
DO1 DO2 DO3 DO4 GND LF
+
LF
HF-
1.
ch
ann
e
l (anal
o
g
)
RS485
U+ D- D+
GND
DO
3
D -
DO
2
DO
1
GN
D
GN
D
U+ DI
1
DI
2
DI
3
DI
4
GN
D
U+ D- D+ GN
D
U+ D- D+ GN
D
U+
DO
4
D +
+
GN
D
+
GND
DI
GND
+
12
V
D
C
230VAC
Fig. 13 Example of an impulse (binary) output and current output scheme
5.3 Adding of another pressure or temperature
transducer
Beyond standardly mounted pressure and temperature transmitters which are
metrologically approved according to EC-type certificate it is possible to add aditional
pressure or temperature transducer.
This extention is not possible for devices already equipped with expanding
SCR encoder board.
Quantity measured by this additional pressure or temperature transducer is not
metrological value. It means that it is not included in to the metrological part of the
device. Measured values is possible to store in to the archives and also show actual
values on the display.
As additional transducer can be used either digital pressure transducer EDT 23
or temperature digital transducer EDT 34. Digital transducer is using for
communication internal intrinsically safe serial bus RS-485 and MODBUS RTU