12
2 - Electrical connections
Note:
[1]
Auxiliary power supply for external tran-
smitter 24Vdc ±20% /30mA max. with
no short circuit protection
D2 With 3 wire transmitter
Rj >10M
Ω
.
D1 With 2 wire transmitter
D
For mA, mV
2.3.3 OP1 - OP2
B
OP1
SPDT relay output
OP2
SPST-NO relay output
External
shunt 2.5
Ω
Transducer
24Vdc
4…20mA
36
11
12
[1]
mA
24Vdc
External
shunt 2.5
Ω
Transmitter
4…20mA
PV
36
11
12
[1]
mA
2.3.4 ALARM OUTPUTS
B
OP1 output
OP2 output
Fuse
Load
31
32
[1]
Fuse
Load
28
29
[1]
30
[1]
Load
Vac
Fuse
NC
C
NO
Vac
Notes:
[1]
Varistor for inductive load 24Vac only.
External
shunt 2.5
Ω
mV mA
11
12
OP1 relay output:
• SPDT relay,
2A/250Vac for resistive load, fuse 2AT at
250Vac, (4A/120Vac, fuse 4AT at 120Vac).
OP2 relay output:
• SPST N.O. relay,
2A/250Vac for resistive load, fuse 2AT at
250Vac, (4A/120Vac, fuse 4AT at 120Vac).
J1 EN-ed3 17-02-2009 15:05 Pagina 12
