FT430/440/450 INSTRUCTIONS
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Page 9
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CONNECTION DIAGRAMS
POWER
SENSOR
ENGD
+
_
_
+
S
PULS
E
OUT
2
PULS
E
OUT
1
+
_
+
_
FT430/FT440
GREEN
WHITE
BLACK
+
_
FT430-139
FT440-139
(Dual Power Supply)
Lower Housing
4-20mA
Device
+
_
Dashed line shows (-) terminal connection
if 4-20mA device is not used (e.g. FT430)
To 115/230Vac
Power Source
+
_
12V
Device
+
_
24Vdc
12Vdc
L
N
G
_
+
Connections for FT430-139 or FT440-139 —115Vac Option
POWER
SENSOR
ENGD
+
_
_
+
S
PULS
E
OUT
2
PULS
E
OUT
1
+
_
+
_
RED
WHITE
BLACK
+
_
9-30 Vdc
Loop Power
Supply
Flow
Sensor
FT440
Electronic
Metering Pumps
_
+
S
_
+
_
+
_
+
4-20mA
Device
+
_
GROUND
Connections for FT440/3-wire Mechanical/ Dual Scaled Pulse Out
Connecting the ENDG terminal to earth ground is
recommended for protection against voltage spikes
or lightning.
Also see '* EGND - Additional protection against
voltage spikes' on page 8
Connecting the
ENDG terminal to
earth ground is
recommended for
protection against
voltage spikes or
lightning.
Also see '* EGND -
Additional protection
against voltage
spikes' on page 8
