E-122-8-E
5.4 Electrical Connections by Type of Input Signal
(1) Model EL0122
(2) Model EL0123
Fig.5.4
+
+
-
+
-
-
1
2
3
4
5
6
7
8
L1
(
+
)
(
+
)
(
-
)
L2
(
-
)
FLOW INPUT
12V
24V or 12V
12V
0V
SIG.
(GENERATOR)
PULSE OUT
POWER
SUP.
SIG.
0V
OPEN COLLECTOR PULSE
CURRENT PULSE
CONTACT-CLOSURE PULSE
2-WIRE SYSTEM
VOLTAGE PULSE
3-WIRE SYSTEM
OPEN COLLECTOR PULSE
3-WIRE SYSTEM
VOLTAGE PULSE
POWER TO PULSE GENERATOR
12V DC TO 24V DC
1. FOR CURRENT PULSE OR 3-WIRE
SYSTEM PULSE INPUT, AN ADDI-
TIONAL POWER SUPPLY FOR
PULSE GENERATOR IS REQUIRED.
2. POWER SUPPLY TO PULSE GEN-
ERATOR MAY BE COUPLED TO
POWER TERMINALS TO PROLONG
BATTERY LIFE.
3.
POWER IS NOT SUPPLIED BY
EL0123.
Fig.5.3
+
+
-
-
1
2
3
4
5
6
7
8
L1
(
+
)
L2
(
-
)
FLOW INPUT
12V
0V
SIG.
(GENERATOR)
PULSE OUT
POWER
SUP.
SIG.
0V
OPEN COLLECTOR PULSE
CURRENT PULSE
CONTACT-CLOSURE PULSE
2-WIRE SYSTEM VOLTAGE PULSE
3-WIRE SYSTEM OPEN COLLECTOR PULSE
3-WIRE SYSTEM VOLTAGE PULSE