
FT500-Series
BATCH FLOW PROCESSOR
APPLICATIONS
Cosmetics manufacturing
Water treatment system
maintenance
Water leakage detection
Precision rell of cooling
towers & tanks
Features
• Batch control
• Regeneration control
• High/low ow rate monitoring
• Water usage monitoring
Contact Your Supplier
The FT500-Series is a batching ow processor with additional output
controls. It is designed for use with Seametrics ow meters and ow
sensors, as well as other manufacturer’s products which have frequency
output proportional to ow. In addition to batch functions, the FT500Series indicates ow rate, and other data in large 3/8” (9.66 mm) digits
on an easily-read, backlit display. Units of measure are user selectable,
and range from milliliters per second to millions of gallons per day. The
unit can be 110 Vac powered with a standard 3-wire cord (included), 220
Vac powered (optional), or DC powered through an internal terminal strip
.
An analog output of 4-20 mA is available both in active and passive loop
conguration, and in 0-5 Vdc or 0-10 Vdc outputs, and can be used in
applications such as ow rate logging. Two programmable pulse scaled
outputs are also standard, and can be used, for example, to provide
proportional chemical feed with a pulse-responsive metering pump.
The housing is supplied with two brackets for wall-mount applications,
or the top/bottom housings can be easily separated and reassembled for
panel-mount.
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253.872.0284 seametrics.com
PROUDLY
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IN THE
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FT500-Series
BATCH FLOW PROCESSOR
Features
Cover Screws
(Can be ordered crossdrilled for seal wire)
Display
Setting Keys
Indicator Lights
Specications*
Power 115 Vac, 50/60 Hz @ 125 mA, 12 Vdc @ 750 mA or 10–16 Vdc (220 Vac optional)
Temperature 32˚ - 130˚ F (0˚ - 55˚ C)
Enclosure Precision cast aluminum, NEMA 4X, panel or wall mount conguration
Batch Outputs Two form C (SPDT) relays, 115 Vac 6 A max
Max Pulse Output 100 mA at 60 Vac/Vdc, opto-isolated, open-collector
Memory Type Non-volatile EEPROM with auto-backup
Sensor Power 12 Vdc, 10 mA
Display Totalizer = 8 digit, Rate = 5 digit, backlit
Units Volume = Gallons, cubic feet, cubic meters, millions of gallons, milliliters, uid ounces, pounds, liters
Analog Output 4-20 mA passive opto-isolated; 4-20 mA active; 0–5 Vdc, or 0–10 Vdc
Sensor Input 1–1000 Hz, ESD protected, interfaces to current sinking sensor output
Environmental NEMA 4X, IP66
Setup Memory Non-volatile EEPROM, auto-backup
*Specications subject to change. Please consult our web site for current data (seametrics.com)
Time = Seconds, minutes, hours, days
253.872.0284 Page 2 seametrics.com

FT500-Series
BATCH FLOW PROCESSOR
> FT520 Batch Controller
In Batch Processing Mode, the display indicates a ow rate on
the top line, and one of three congurations on the bottom
line: an accumulated total ow (resettable), accumulated
batch ow, or batch process bar graph. The batch output is
controlled via two relays. The main relay starts and stops the
batch as a set, or the auxiliary “prewarn” relay can be used
to operate a second valve. This allows increased accuracy by
engaging a staged shut off at the end of the batch.
Settings are:
- SET Batch Size
- SET Prewarn Size
- SET Flow volume units
- SET Rate of ow in time base
- SET Decimal from whole numbers, to tenths,
to hundredths
- SET K-factor
- SET Pulse (scaled) Output 1
- SET Pulse (scaled) Output 2
- SET 20 mA Rate for maximum estimated ow
- Clear Total
> FT520-84 Filter Regeneration
In Filter Regeneration Mode, the display indicates a ow rate
on the top line, and one of two congurations on the bottom
line: an accumulated total ow (resettable), or batch process
remainder. The regeneration process is initiated by setting
a target volume, a set value for regeneration time as well. A
single relay or alternate relay setting allows control of either
single tank or alternating dual tank systems.
> FT520-86 Flow Rate Alarm
In Flow Rate Alarm Mode, the display indicates a ow rate on
the top line, and on the bottom line, an accumulated total
ow (resettable). The user sets a minimum and maximum ow
rate, and if the ow exceeds the min/max parameter, relay 1
or relay 2 will close. The output relay will stay latched until
the ow rate increases/decreases back between the min/max
settings.
Settings are:
- SET Flow volume units
- SET Rate of ow in time base
- SET Decimal for rate and total to two decimals
- SET K-factor
- SET Pulse (scaled) Output 1
- SET Pulse (scaled) Output 2
- SET 20 mA Rate for maximum estimated ow
- SET Low Flow Alarm
- SET Hi Flow Alarm
- Clear Total
> FT522 Usage Monitor
In Usage Monitor Mode, the display indicates one of two
congurations: an elapsed time and elapsed ow, and a ow
rate and accumulated total ow (resettable). A time period
is set to monitor for a set maximum total ow. If the total
ow is reached within the set time, an output relay is closed.
The output relay stays latched until the system either resets
automatically after the set time, or is reset manually via Stop/
Start. A reset condition clears the elapsed time and ow, but
not the accumulated total ow.
Settings are:
- SET Flow volume units
- SET Rate of ow in time base
- SET Decimal for rate and total to two decimals
- SET K-factor
- SET Pulse (scaled) Output 1
- SET Pulse (scaled) Output 2
- SET 20 mA Rate for maximum estimated ow
- SET Regeneration Volume
- SET Regeneration Time in seconds (3 digits)
- SET Relay Mode to one or alternate relays
- Clear Total
253.872.0284 Page 3 seametrics.com
Settings are:
- SET Flow volume units
- SET Rate of ow in time base
- SET Decimal for rate and total to two decimals
- SET K-factor
- SET Pulse (scaled) Output 1
- SET Pulse (scaled) Output 2
- SET Time Period from 01-48 hours
- SET Alarm Reset to automatic or manual
- SET Alarm Point in Flow (8 digits)
- SET 20 mA Rate for maximum estimated ow
- Clear Total

FT500-Series
4.65"
6.42"
6.42"
1/2" NPT
5.67"
TX Flow Sensor
High-Flow
Valve
Low-Flow
Valve
Tank
FT520
Staged shut-off
at end of batch
BATCH FLOW PROCESSOR
Dimensions
Typical Dual Flow Batch Application
How to Order
MODEL MOUNTING OPTIONS
AC/DC Power, Rate/Total/Batch Indicator = FT520
Usage Monitor = FT522
Alternating Tanks Application
Wall mount = W Regeneration Control = -84 (FT520 Only)
Alarm Relay Output = -86 (FT520 Only)
220 vac Input = -121
Seametrics • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • seametrics.com
LT-65650012r1.1-20170503
5/3/2017