Seametrics FT520 v.2 - Manual (Page 4)

20419 80th Ave. So., Kent, WA 98032 USA
Phone: 253-872-0284 Fax: 253-872-0285
www.seametrics.com 1-800-975-8153
Staged Shut-off Application
4 of 4
TX Flow Sensor
High-Flow
Valve
Low-Flow
Valve
Tank
FT520
Caution: Always disconnect
power to the unit before opening
the terminal cover. Do not recon-
nect power until all connections
have been made and the terminal
cover has been replaced.
!
Stop Batch/Resume Batch. Pressing the Start/Stop
key anywhere in the batch will stop it. It will remain
stopped until the Resume key is pressed. Pressing the
Start/Stop key again allows the batch to restart from
zero.
Choice of Displays for Batching. When in Operation
Mode, press
to change the type of display. Running
Totalizer (“T”) accumulates a Total Flow until it is reset.
Batch (“B”) accumulates the flow of the present batch
only, then resets. Bar Graph (“
❚ ”) graphically indicates
from left to right, how much of the batch has already
accumulated.
Repair
The only field-repairable component on the FT520 is the
fuse. If failure is due to a cause other than a blown fuse,
it is necessary to replace the entire board stack. Contact
your distributor for information.
High-Flow Valve
Low-Flow Valve
Relay 1
Relay 2
NC
COM
NO
NC
NO
COM
Power
Source
Conection for Staged Shut-off
5.50"
gasket
PANEL
CUTOUT
5.50"
6.03"
6.03"
1/4" holes (4 required)
Panel Cut-out