seametrics SPX, SPT User Manual

S-Series

I

SPT, SPX LOW FLOW METERS

SPX

SPT

Precision Flow Measurement

An ON

CON Brand

APPLICATIONS

Low ow monitoring

Chemical batching

Proportional chemical
injection

Fertilizer injection

Features

• Accurate at low ows

• Simple and durable

• Compatible with a variety of

chemicals

• Visual ow monitoring

(SPX Only)

These versatile impeller owmeters are availalble in 3/8”, 1/2”, 3/4”, and 1”
nominal pipe sizes with female NPT threads. They employ jewel bearings
to allow for very low minimum ow rates and superior life.

The SPX, with a body of polypropylene, is an economical choice for
metering water or low corrosion uids. The lens cover is available in a
choice of materials: acrylic for visual ow indication of low-corrosion
uids; polypropylene when more corrosion resistance is needed. The
standard rotor assembly is Kynar® with tungsten carbide shaft. The
O-ring is EPDM.

The SPT oers greater chemical resistance with a Teon® body and
cover, Teon®-coated Viton® O-ring, and standard Kynar®/ceramic rotor
assembly.

The pulse output of these meters is compatible with many dierent
types of controls, including a full range of Seametrics rate displays and
controls. The Seametrics FT430 and FT440 provide ow rate and total
ow indication. The FT440 also includes 4-20 mA output capability. The
FT450 is a battery-operated rate & total display. For metering pump
pacing or interfacing with low speed counters, the PD10 pulse divider is
recommended. The AO55 may be used for blind 4-20 mA transmission.

Contact Your Supplier

C

o

d

m

e

i

p

f

i

a

t

n

r

e

C

ISO

9001

253.872.0284 seametrics.com

PROUDLY

y

MADE
IN THE

USA

S-SERIES

SPT, SPX LOW FLOW METERS

Features

18’ Sensor Cable

Thread-in Sensor, Field Replaceable,
6–24 Vdc Pulse

Standard Acrylic Top with Clear
Removable Lens Assembly

(optional polypropylene top
without clear lens)

Hex Screws

Female NPT Ports

Polyproylene Body

SPX

Internal

• Jewel Bearings—Ruby Ring and Ball

• Kynar®/Tungsten Carbide Rotor Assembly (Kynar®/Ceramic or

Kynar®/Silicon Carbide optional)

• EPDM O-Ring (Viton® or Teon®-coated Viton® optional)

18’ Sensor Cable

Thread-in Sensor, Field Replaceable,
6–24 Vdc Pulse

Screws with Hex Nuts

Female NPT Ports

Teon® Body and Top

Field Replacement

of Sensor

Internal

• Jewel Bearings—Ruby Ring and Ball

• Kynar®/Ceramic Rotor Assembly (Kynar®/Silicon Carbide

optional)

• Teon®-coated Viton® O-Ring (Viton® or EPDM optional)

253.872.0284 Page 2 seametrics.com

SPT

S-SERIES

SPT, SPX LOW FLOW METERS

Specications*

SPX SPT

Connection Ports 3/8”, 1/2”, 3/4”, 1” —Female NPT thread 3/8”, 1/2”, 3/4”, 1” —Female NPT thread

Sensor Cable 18 ft (6 m) standard—maximum cable run 2000 ft

(607 m)

Materials Body Polypropylene TFE Teon

Rotor PVDF (Kynar®)—2 magnet

(6 magnet high resolution optional)

Shaft Nickel tungsten carbide

(ceramic or silicon carbide optional)

O-Ring EDPM (Viton® or Teon®-coated Viton® optional) Teon®-coated Viton® (Viton® or EDPM optional)

Bearings Ruby ring and ball Ruby ring and ball

Cover Acrylic with clear lens

(polypropylene without clear lens optional)

Maximum Temperature 160˚ F (70˚ C) 180˚ F (82˚ C)

Maximum Pressure 150 psi (10 bar) 150 psi (10 bar)

Accuracy ±1% of full scale ±1% of full scale

Power Standard 6–36 Vdc, 2 mA min. 6–36 Vdc, 2 mA min.

Micropower 3.1–16 Vdc (for use with FT450 and DL76 only) 3.1–16 Vdc (for use with FT450 and DL76 only)

Outputs Current sinking pulse, 6–24 Vdc Current sinking pulse, 6–24 Vdc

* Specications subject to change. Please consult our website for current data (seametrics.com)
Kynar is a registered trademark of Arkema, Inc., Teon and Viton are registered trademarks for DuPont Corporation

18 ft (6 m) standard—maximum cable run 2000 ft
(607 m)

®

PVDF (Kynar®)—2 magnet

(6 magnet high resolution optional)

Zirconia ceramic

(silicon carbide optional)

TFE Teon

®

Dimensions

1.20

4.10

18 Ft. Cable

(standard)

2.20

1.625

2.25 (SPT)*

2.10 (SPX)

*NOTE:

SPT cover screws
are not recessed

Female NPT

thread size varies

with model #.

See chart below

Model # NPT Thread Size

-038 3/8”

-050 1/2”

-075 3/4”

-100 1”

253.872.0284 Page 3 seametrics.com

S-SERIES

0

5

10

15 20 25 30 35

20

SPT, SPX LOW FLOW METERS

How to Order

Model Size Options

SPX SPT

SPX = Polypro/Acrylic

SPT = TFE Teon

®

-038 = 3/8” (0.07–5 gpm)

-050 = 1/2” (0.1–10 gpm)

-075 = 3/4” (0.2–20 gpm)

-100 = 1” (0.5–40 gpm)

-01 = Ceramic shaft

-04 = Micropower pickup (for use

-06 = Standard power, LMI 4-pin

-07 = Standard power, Seametrics

-12 = Polypro cover

-13 = High resolution rotor

-25 = Teon®-coated Viton® o-ring

-60 = Viton® o-ring

-68 = Silicon carbide shaft

-70 = SAE threads

-106 = Roytronic® Series A Pump 5-pin

-116 = BSP threads

with FT450 or DL76 only)

connector

control connector

connector

-04 = Micropower pickup (for use
with FT450 or DL76 only)

-06 = Standard power, LMI 4-pin
connector

-07 = Standard power, Seametrics
control connector

-13 = High resolution rotor

-60 = Viton® o-ring

-68 = Silicon carbide shaft

-69 = EPDM o-ring

-70 = SAE threads

-106 = Roytronic® Series A Pump 5-pin
connector

-117 = BSP threads

Accessories

FT430 = Rate and Total Indicator, DC powered

FT440 = Rate and Total Indicator, loop powered

FT450 = Rate and Total Indicator, battery powered

AO55 = Blind Analog Transmitter (4-20 mA)

FT520 = Batch Flow Processor

Kynar is a registered trademark of Arkema, Inc., Roytronic is a registered trademark of Milton Roy Company, Teon and Viton are registered

trademarks of DuPont Corporation

DL76 = Data Logger

PC3 = Plug-in Power Converter, 100–115 Vac, 24 Vdc

PC12 = DIN or Wall Mount Power Converter, 100–115 Vac, 24 Vdc

PD10 = Pulse Divider

PS40 = Pulse Splitter

Flow Range

Model #

-038 1394 1417 0.07–5 0.27–18.9

-050 634 658 0.1–10 0.38–37.9

-075 476 468 0.2–20 0.75–75

-100 250 254 0.5–40 1.9–150

K-Factor* (pulses/gal)

SPT SPX

Gal/Min Liter/Min

*Nominal K-factors (based
on averages) for standard

2-magnet SPT and SPX.

High resolution (6-magnet)
K-factors are approximately

tripled.

Pressure Drop Curves

15

3/8"

10

1/2"

3/4"

1"

5

Pressure Drop (PSI)

Flow (GPM)

Seametrics • 19026 72nd Avenue South • Kent, Washington 98032 • USA

(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • seametrics.com

LT-65650049r2.0 20180509

5/9/18