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Liquid FLow TransmiTTer and swiTch
FSW-9000 Series
FSW-9212
shown smaller
U High Reliability—
No Moving Parts
U 4 to 20 mA,
PNP/NPN (Transistor),
or Relay Output
U Excellent Low
Flow Sensitivity
The FSW-9000 Series is a flow
switch monitor that measures the
velocity of the flow. It is ideal for
use in measurement and control
liquid applications. The FSW-9000
Series provides two output options:
a 4 to 20 mA analog output and a
PNP/NPN output. For the 4 to
20 mA output, the electronics
module converts the signal from
the probe to a 4 to 20 mA analog
output, which can be used to
indicate flow rate. For the PNP/
NPN output, the measured flow rate
is compared to the setpoint value
selected by the user and the switch
changes state once the setpoint
value has been achieved.
The FSW-9000 Series
microprocessor based electronics
and unique self-calibration program
gives the flow switch superior
temperature compensation, a fast
response time (adjustable from
3 to 10 seconds) and increased
long term switch point stability.
Even in the event of a power failure,
the calibration program will store
values for maximum and minimum
flows for up to 10 years.
A chain of 8 LEDs gives the user a
visual indication of the flow rate as
well as setpoint status, and one
di-chromatic LED indicates switch
point status. In addition, if there is
a problem with the unit, the 8 LEDs
will flash continuously providing
troubleshooting information.
The conical shape of the sensor’s
tip means that the probe can be
installed at almost any angle in
the pipe and that if the probe is
misaligned, accuracy will not be
affected. The sensing element
and connection of the FSW-9000
Series are made with 316 SS
and the standard enclosure is
glass-filled nylon. The FSW-9000
Series can be made with a great
variety of process connections
such as threaded, flange, or
sanitary and is also available in an
aluminum enclosure for hazardous
environments. Intrinsic safety
barriers required for explosion proof
areas.
Measuring Ranges for
FSW-9000 Series
The FSW-9000 Series nominal
measuring range is 0.04 to 2.0 m/s.
The switch can be set to trip at any
value in this range. To calculate the
velocity for your application, use the
following simple formula:
V =
Q = Flow rate in meters per second
D = Pipe internal diameter in meters
V = Fluid velocity in meters per second
1.27 X Q
2
D
Please note that the 4 to 20 mA
option is scaled over 0 to 2.0 m/s
The FSW-90-R is very similar to the
FSW-9212 Series with one main
difference: The sensor is separate
from the electronics and it does not
have an enclosed housing. This
gives the FSW-90-R Series the
ability to be installed in very small
pipes and be remotely controlled
by the FSCN-91 relay. The
FSW-90-R Series is the ideal
solution when there is not a lot of
space to install even a compact
unit or when there is a need for
a mounted relay. In addition, the
conical shape of the sensor’s tip
allows the probe to be installed at
almost any angle in the pipe, and
if it is misaligned, accuracy will
not be affected. The FSW-90-R is
made with 316 SS. FSCN-91 relay
can operate with DC or AC supply
voltage and provides an analog 4
to 20 mA and SPDT output. The
FSCN-91 enclosure is made with
ABS and can be mounted on a DIN
rail or by using 2 fixing screws.
than actual size.
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SPECIFICATIONS
Accuracy: ±5% of setpoint
Repeatability: ±1% of setpoint
Power Supply: FSW-90-R: 85 to
240 Vac, 50/60 Hz or 24 Vdc ±10%;
FSW-9000: 24 Vdc ±10%
Temperature Range:
Process: -20 to 80°C (-4 to176°F)
(Sanitary option to 284°F for CIP)
Operating: -20 to 60°C (-4 to140°F)
Maximum Pressure: 300 bar (4351 psi)
Protection Class: NEMA-4 (IP65)
Wetted Materials: 316 Stainless Steel
Enclosure Material: Glass filled nylon
standard; aluminum head optional
Process Connection:
Tri-Grip
TM
(Tri-Clamp® compatible),
or flange
1
⁄2 to 11⁄2 NPT,
Output: FSW-90-R + FSCN-90: relay
(SPDT) and 4 to 20 mA; FSW-9000:
transistor NPN/PNP (400 mA) and
4 to 20 mA
Switch Point Adjustment:
Potentiometer
Bargraph: 8 LED
Switch Point Status:
Red LED: No flow
Green LED: Flow
Response Time: 3 to 10 sec nominal
Maximum Start-Up Delay: 12 seconds
Switching Range: 0.04 m/s to
2 m/s (water)
Dimensions:
Nylon Head: 89 H x 64 mm D
(3.5 x 2.5")
Aluminum Head: 89 H x 108 mm D
(3.5 x 4.25")
Probe Diameter: 16 mm (0.625")
Insertion Length: 1
3
⁄8, 2 and 3"
standard; for other lengths consult
Flow Engineering
Weight: Approx. 680 g (1.5 lb)
To Order
Model No. Description Process Connection Enclosure Insertion Legth
Glass filled nylon,
FSW-9212 Complete transmitter ³⁄₄ NPT ¹⁄₂ NPT conduit, cable 51 mm (2")
gland, and 2 m (6.5') cable
Flow sensor
FSW-91-R (FSCN-90 electronics ¹⁄₂ NPT None 51 mm (2")
sold separately)
FSCN-91 FSW-91-R electronics, 24 Vdc power
FSCN-92 FSW-91-R electronics, 85 to 240 Vac power
B
Accessories
Model No. Description
70A-1 Continuous tone alarm
TX4-100 4 conductor wire, 30.5 m (100') spool
U24Y175 24 Vdc power supply
Build to Order Models
Model No. Description
FSW-9(*)(**)(***) Complete transmitter, specify connection (*), enclosure (**) and insertion length (***)
FSW-9(*)-R Flow sensor, specify connection (*); (FSCN-90 electronics sold separately)
16
(0.625)
Options
Ordering Suffix Description
Process Connection (*)
1 ¹⁄₂ NPT thread
2 ³⁄₄ NPT thread
3 1 NPT thread
5 1.5" Tri-GripTM (inches only)
6 2" ANSI flange, 15016 316 SS
Enclosure (**)
1 Glass filled nylon with ¹⁄₂ NPT conduit, cable gland, and 2 m (6.5') cable
2 Aluminum die cast with ¹⁄₂ NPT conduit
3 Aluminum die cast with cable gland
Insertion Length (***)
1 35 mm (1³⁄₈")
2 50 mm (2")
3 75 mm (3")
Comes complete with operator’s manual.
To order ECTFE/ETFE element coating add suffix “-ETFE” to model number, for additional cost.
Ordering Examples: FSW-9212, Vac powered switch, and 70A-1, alarm.
FSW-9123, transmitter with
(3") insertion length.
1
NPT thread, aluminum die cast enclosure with
⁄
2
1
NPT conduit, 75 mm
⁄
2
B-84
L
Dimensions:
mm (in)
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