Seametrics FT520 v.2 - Manual (Page 2)

Installation
Wall Mounting. Using the four 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 given for
“Panel Cutout”. Be sure to include the four corner screw
holes. After cutting and drilling, place the front plate on
the front side of the panel with its gasket against the
panel, and the remainder of the square housing on the
back side. Slide the screws through the four holes drilled
in the panel, and into the threaded holes in the housing.
Tighten until the gasket is firmly compressed against
the panel.
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, while
making connections. Connections can be made inside
the enclosure, or the terminals can be unplugged by
gentle tugging for easier access.
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.
Analog Connection. This output can be configured 4-
20 mA, 0-10 V or 0-5 V by placing a jumper in the correct
position on the analog header. The swith next to the
header selects active (powered) or passive (unpowered)
output. When using the 12 VDC powered input you may
only select passive output.
Power Connection. Connect AC or DC power as
2 of 4
desired to the appropriate terminals. For safety, if using
AC power, be sure to connect the ground terminal
provided to a good earth ground. If using 12 VDC, use
a PC1 (part # 05040) or equivalent 12 VDC 500 mA
power supply.
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.
Caution: When the control is
powered up, relay or analog
outputs may be present. If this
could be a hazard, wait to make
external connections until pro-
gramming is complete.
!
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
Settings
Set Batch Size. Set the batch size for the desired
number of units, using
and keys. If the staged
shut-off feature is not being used, this is the only setting
required for the batch.
Set Prewarn. This is only used for a staged shut-off.
The number set is the number of units early (before the
end of the batch) that Relay 2 will shut off.
Set Flow Units. 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 unit desired. Press to advance to the next menu.