Seametrics FT520 v.1 - Manual (Page 2)

Installation
Wall Mounting. Using the eight screws provided, attach
the two foot brackets to the sides of the enclosure. Then
attach the unit to any secure surface by inserting screws
through the mounting holes in the foot brackets.
Panel Mounting. Follow the dimensions for “Panel
Cutout” to cut a hole in the panel. Slide the panel mount
gasket up from the bottom of the enclosure to its place
behind the panel mount flange. Insert the unit through
the panel cutout. Install the two panel mount brackets
on the sides of the unit using the eight screws provided.
Each bracket has one threaded center hole. Insert and
tighten one screw in each hole, until the flange is pulled
firmly up against the panel and the gasket is compressed.
Expose Terminals. Remove the four screws which hold
the front plate to its flange. Remove the front plate. The
display board is attached to this front plate. It is also
connected to the power board by a ribbon cable. For
convenience, this cable can be disconnected, or the
display board can be allowed to dangle while making
connections. Connections can be made inside the
enclosure, or the terminals can be unplugged for easier
access, by gently tugging on them.
Sensor Connection. Follow the “Connections” diagram
to connect either two or three wires from the flow meter
or flow sensor.
Batch Control Connection. Connect the valve or other
device(s) to be controlled for starting and stopping the
batch to the appropriate relay terminals. Note: if the
staged shutoff (“prewarn”) will not be used, connect to
relay one only. Relay 1 remains energized for the entire
batch cycle. If a staged shutoff is desired, connect the
main valve to Relay 2 (early shutoff) and the low-flow
valve to Relay 1.
Power Connection. Connect AC or DC power as
desired to the appropriate terminals. For safety, if using
AC power, be sure to connect the ground terminal
provided to a good earth ground.
2 of 4
Displays
Settings
Batch Setting. These functions are covered under
operation. When first setting up the FT520, skip down to
Flow Rate and K-Factor, which must be set before
batching can be done.
Set Flow Rate. Use to select volume units. Use
to select the particular unit desired (gallons, liters, etc.).
Then use
to switch to time units. Again, select the
one desired.
Set Decimal. Use to select zero, one, or two decimal
places on the flow units.
Set K-Factor. The unit will not function properly until
this number is entered. It is simply the number of pulses
which the flow meter or flow sensor puts out per gallon
of liquid. It is marked on the Model/Serial tag of
SeaMetrics flow meters and flow sensor fittings. On
adjustable flow sensors, the K-factor must be taken from
Caution: When the control is
powered up, relay or analog out-
puts may be present. If this
could be a hazard, wait to make
external connections until pro-
gramming is complete.
!
Replace the front panel, taking care to reconnect the
ribbon cable if it has been disconnected. When power
is switched on, the display should light up immediately
with meaningful letters or digits.
0 GPM
0 GPM
O GAL
0 GPM
O GAL
B
T
SETTINGS OPERATION MODE
SET BATCH SIZE
123 GAL
SET
SET SET PREWARN SIZE
123 GAL
SET
SET
SET
SET
SET
SET
SET
SET DECIMAL
0.00 GPM
SET K-FACTOR
123.456
SET PULSE OUT
123 GAL
TO CLEAR TOTAL
PRESS UP & LEFT
SET 20mA RATE
0.00 GPM
GAL
MINUTE
FLOW
RATE
return to
operation mode
Bar
Graph
Batch
Running
Totalizer
AR
CH
IVE
D