Xylem TX80 User Manual
TX80-Series
ISO
FLOW SENSOR
INSTRUCTIONS
•TX81
•TX82
TX80-SERIES FLOW SENSOR INSTRUCTIONS
9 001:2008
CERTIFIED COMPANY
TABLE OF CONTENTS
General Information
Specifications, Features .......................................................................................................................................Page 1
Installation
Distorted Flows, Fitting Installation, Meter Installation, Positioning the Meter ................................................Page 2
Straight Pipe Recommendations .........................................................................................................................
Full Pipe Recommendations .................................................................................................................................Page 4
Electrical Connections
FT415/FT420, Connecting to PLC's .....................................................................................................................Page 5
Operation
Modularity, Output, Fittings, Minimum Flow, Flow Range Table,
Calibration (“K-Factor”) .........................................................................................................................................Page 6
Maintenance
Rotor Replacement, Signal Troubleshooting, Sensor Replacement ..................................................................Page 7
Parts Explosion
Parts List ................................................................................................................................................................Page 8
Page 3
Troubleshooting
Problem, Probable Cause .....................................................................................................................................Page 9
TABLES AND DIAGRAMS
Specifications, Features ....................................................................................................................................... Page 1
Distorted Flows, Positioning the Meter ................................................................................................................Page 2
Straight Pipe Recommendations .........................................................................................................................
Full Pipe Recommendations .................................................................................................................................Page 4
Connections Diagram ...........................................................................................................................................Page 5
Flow Range Table .................................................................................................................................................. Page 6
Rotor Replacement ...............................................................................................................................................Page 7
Parts Explosion, Parts List .................................................................................................................................... Page 8
Troubleshooting ..................................................................................................................................................... Page 9
Page 3
GENERAL INFORMATION, SPECIFICATIONS, FEATURES
GENERAL INFORMATION
The TX80-Series are insertion turbine meters designed for use
in 1-1/2" to 8" pipe. High-quality jewel bearings and precision
shafts ensure long life and low friction. Available in 316 stainless steel, brass and PVC, sensor bodies are machined from
solid rod for maximum low-ow performance. The TX80-Series
use special ttings that ensure ease of installation and correct
depth setting in the pipe.
The rotation of the turbine is detected by a non-drag Hall-effect
sensor. Output is a pulse-type square wave, which can be sent
long distances (up to 2,000 feet) without a transmitter. This
SPECIFICATIONS*
signal can be connected directly to Seametrics controls and
displays, as well as PLC's, counters, and computer cards.
Seametrics TX80 meters are ideal for chemical proportioning
applications. If no display is required, a simple divider such as
the PD10 provides adjustable pump pacing. For rate and total
display, as well as pump pacing, the FT420 ow indicator can
be mounted directly on the TX80-Series, or remotely on a wall
or panel. The FT415 offers a battery-operated rate/totalizer
where power is not available.
Materials Body
Rotor Assembly
Bearings
O-Ring
Rotor Pickup
Maximum
Pressure
High Pressure**
Temperature
Flow Range
Calibrated Accuracy
Signal
Power
Cable
*Specications subject to change. Please consult our website for the most current data (www.seametrics.com).
**High pressure option requires an appropriate tting.
PVC, brass or stainless steel
PVFD rotor/carbide shaft
Ruby jewel
EPDM (Viton optional)
GMR (Giant Magnetoresistive Sensor)
Brass 316 SS PVC
200 psi (14 bar) 200 psi (14 bar) 175 psi (12 bar) at 75°
Not Available 400 psi (28 bar) Not Available
200° F (93° C) 130° F (55° C) at 0 psi
0.5 to 30 ft./sec.
+/- 2.5% of full scale
Current sinking pulse, 20 mA max, 30 Vdc max (Micropower option: Pulse output swings between supply voltage and 0 Vdc)
6-30 Vdc @ 8 mA (Micropower option: 3.5-16 Vdc @ 0.3 mA max)
22 AWG, 3 Con, 18’; 2000’ max run
FEATURES
Cable-Seal Strain Relief
Caution: U-clip
must be installed
before use.
U-Clip Insertion Point
O-Ring
Fitting
Bearing Housing
Rotor
Page 1
INSTALLATION
DISTORTED FLOWS
Faster flow causes
Distorted flow
profile
meter to read high
FLOW
10X
Diameter Minimum
(See Below)
Fitting Installation. TX80-Series meters require special ttings. The meter tting must rst be installed in the pipeline.
Straight pipe of at least ten times the diameter upstream of
the meter and ve diameters downstream is strongly recommended in order to achieve proper accuracy. These are
minimum values. As the diagrams on the the next page will
show, you may need more straight run under specic adverse
circumstances.
If you can’t provide enough run to smooth out the turbulence
caused by valves, ttings, and changes in direction, some
decrease in accuracy may result. This does not mean that
the ow meter’s reading is meaningless, however. In some
applications (for instance, where the ow meter is part of a
control system, operating a valve or controlling chemical addition), a repeatable reading may be more important than a
highly accurate one.
tings (size 3” and above) require a hole to be cut in the pipe.
The recommended hole size is 1-3/4”.
Meter Installation. After the meter tting is installed in the
pipeline, the meter can be installed in the tting. Press the
meter into the tting as far as it will go. Retain the meter in
place by inserting the u-pin. The pin can be installed from
either side. It may be necessary to rotate the probe back and
forth slightly to start the pin into the slots on the probe. Slide
the pin in as far as it will go.
POSITIONING THE METER
Okay, if no air in pipe
BEST
TX80-Series PVC meter tees are supplied with some upstream straight pipe. The length provided may be less
than ten diameters upstream and five downstream. It
is not advisable to connect directly to the end of these
fittings with a flow-disturbing device such as a valve or
elbow. If possible, straight pipe should be added to the up-
stream end of these ttings.
A PVC tting is usually installed by solvent welding. The stainless steel and brass meter ttings have female pipe threads,
requiring the appropriate male threaded ttings. Saddle t-
Page 2
Okay, if no sediment in pipe.
Caution: Never remove the u-clip retainer
when the pipe is under pressure. Always
remove pressure from the pipe before you
attempt to remove the meter. Removal un-
der pressure may result in damage or serious injury.
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