Seametrics FT450 - Connection Diagrams; FT450 Standard; FT430;3-Wire Mechanical Meter

FT430/440/450 INSTRUCTIONS
Seametrics • 253.872.0284 Page 8 seametrics.com
CONNECTION DIAGRAMS
POWER
SENSOR
ENGD
+
_
_
+
S
PULSE OUT 2
PULSE OUT 1
+
_
+
_
RED
WHITE
BLACK
+
_
7-30Vdc
Supply
Flow
Sensor
FT430
Pulse
Pass-thru
Pulse Responsive
Metering Pump
_
+
S
_
+
_
+
_
+
GROUND
Connections for FT430/3-Wire Mechanical Meter
Caution: Do not apply
external power to the FT450.
FT450 Standard Connections
POWER
SENSOR
ENGD
+
_
_
+
S
PULSE OUT 2
PULSE OUT 1
+
_
+
_
RED
WHITE
BLACK
Micropower
Flow Sensor
FT450
Pulse
Pass-thru
Pulse Responsive
Metering Pump
Current Sinking
Polarity-Sensitive
Lithium C,
3Vdc
Replaceable
Battery
_
+
S
_
+
_
+
GROUND
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