Seametrics EX100-200-Series - Manual (Page 12)

CONNECTIONS DIAGRAMS
+
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S
+
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_
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0 0 9
8
7
6 5 4
3
2
1 0 0 9
8
7
6 5 4
3
2
1 0 0 9
8
7
6 5 4
3
2
1
0 0 9
8
7 6 5 4
3
2
1
+
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S
+
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+
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+
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+ _
FT420 DISPLAY AND PROPORTIONAL FEED
Sensor
Input
Power
Forward Output
EX-SERIES
24 Vdc Power
Power
4-20mA
Pulse
Scaled
Pulse
Pass-Thru
To
Proportional
Feed
Metering
Pump
FT420 DISPLAY AND 4-20 mA OUTPUT
FT420
*See Dual FT420 Diagram for an
example of bidirectional connections.
*See Dual FT420 Diagram for an
example of bidirectional connections.
Page 10
Reverse Output
(Option-15 only)
EX-SERIES
DUAL FT420 DISPLAYS
(Example of Bidirectional Connection)
Power
Forward Output
Sensor
Input
24 Vdc
Power
Power 4-20mA
Pulse
Scaled
Pulse
Pass-Thru
FT420
FT420
Sensor
Input
Power 4-20mA
Pulse
Scaled
Pulse
Pass-Thru
Reverse Output
(Option-15 only)
+
_
S
+
_
+
_
+
_
+
+
_
_
+
_
+
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+
_
Reverse Output
(Option-15 only)
Power
Forward Output
EX SERIES
4-20 mA Device
(e.g. pump, PLC)
24 Vdc
Power
Sensor
Input
Power
4-20mA
Pulse
Scaled
Pulse
Pass-Thru
FT420
24 Vdc
Power
Black
Red
Green
White
Black
Black
Red
Green
White
Black
Red
Black
Black
Red
Green
White
Red
Black
Green
White