Seametrics FT420-98 - Manual

FT420 Relay Output
Instructions
-
12-30 VDC
Red
White
Black
TX81
Flow Sensor
white
wire
red
wire
Device one Device two
30221
+ +
+
- -
Installation
Please note that if you purchase the FT420 with
option 98, the required component will come
preinstalled, and no extra procedures are required. If
you are retrofitting an existing installation of an FT420
with the relay board, please follow the instructions
below.
Peel the backing off of the double-stick tape and affix
it to the bottom of the relay board (part number
30221). Carefully attach the board to the FT420 as
shown in the diagram below. Be sure that the red wire
faces the “Sensor Input” side of the FT420, and that
the white wire faces the “Pulse Output” side. Connect
the white wire to the “Pulse Scaled” positive terminal,
and the red wire to the “Power 4-20mA” positive
terminal. Connect devices to the relays as desired
.
Specifications
Input Voltage: 7-30 VDC
Output Current (both outputs):
Input Voltage 50 C 85C
12VDC 120mA 70mA
24VDC 120mA` 80mA
Max Pulses/Second: 5
Contact Time Per Output: 100 ms
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