Raport, Power supply, Pow er supply – Delta Controls DPR-2000 User Manual
Page 38: Rys. 2b, Rys. 2c, 4÷20 ma, Current loop, Comm unic ato r current loop, Com municator
A
36 IOM-DPCDPR-A: FEB 2014
Fig.2b.
The link of transmitter and communicator or modem to
case of the resistance in current loop is
higher than 250Ω.
Fig.2c. The link of transmitter and communicator or modem to
case of the resistance in current loop is smaller
than 250Ω.
+
TES
T
-TEST
Rys. 2b
-
+
SIGNAL
240
Ro
mA
4÷20 mA
+
_
F1
.
3
2
VWX
MNO
DEF
YZ#
5
6
PQR
*
+/
9
GHI
8
0
@%&
1
STU
4
JKL
ABC
7
RE
PV
F4
PF
F2
F3
F4
RAPORT
BELL
202
RS 232
Com
municator
Current loop
JUMPER
Pow
er
supply
BELL
202
RS 232
C
omm
unic
ato
r
Current loop
+
TES
T
-TEST
Rys. 2c
-
+
SIGNAL
240
4÷20 mA
+
_
F1
.
3
2
VWX
MNO
DEF
YZ#
5
6
PQR
*
+/
9
GHI
8
0
@%&
1
STU
4
JKL
ABC
7
RE
PV
F4
PF
F2
F3
F4
RAPORT
Ro
mA
JUMPER
Power supply
To measure the transmitter current without
disconnecting the measuring loop, connect
a milliammeter to control terminals
and
D-Soft
D-Soft