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STUF-300F1B:
Clamp-on
Transit-Time Ultrasonic Flowmeter
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High performance and
guaranteed lowest price!
Download
Brochure |
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Click here to get a quote
Or, call (888) 738-0188 (toll free) |
Features:
High
accuracy: ㊣1% normally;
㊣0.5% when
on-site calibration available
Wide flow range -52ft/s (-16m/s) - +52ft/s
(16m/s)
Bi-directional
Wide pipe size range (from 1" to 240")
Non-intrusive. No pipe disturbance. No moving parts.
No pressure
drop.
No
maintenance
Easy and economical installation. No pipe
cutting or hole drilling.
Suitable for all commonly used pipe materials
Easy to use
and set up. Self-explanatory menu programming
Velocity, volumetric and totalized flow
4-20mA output, OCT digital output, relay output, batch
control, alarm control
Isolated RS485 interface, MODBUS
compatible
Optional GPRS / GSM
networking module
IP65 weather-proof enclosure
Low power consumption. Less than 1 W att
Ideal for both clean and opaque liquid flows
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Descriptions:
The
STUF-300FxB General Purpose Wall-Mount Clamp-on Ultrasonic Flowmeter
is the first member of the 3rd generation ultrasonic flowmeters
from Shenitech.
Compared with the predecessors, the 3rd generation ultrasonic flowmeters offer better performances and a richer feature set, all at
a lower price.
The STUF-300FxB is designed to be installed at a fixed location for
long-term flow measurement from outside of a pipe that carries pure
liquids and liquids with minor suspended particles.
It utilizes cutting-edge technologies such as advanced
transducer design, low voltage transmission, digital signal
processing, and self adaptation to achieve high performance.
As QUALITY is of crucial importance, all transducers are carefully
paired, and all flowmeters are wet-calibrated in the factory to
further ensure system accuracy and reliability.
STUF-300FxB provides
versatile input/output
interfaces, such as digital and relay outputs, batch control,
alarm, flow totalizing, 4-20mA output,
and optional RTD interface for thermal
energy measurement, which can be easily used by a host computer or a
flow controller for process monitoring and control. Besides, the
isolated built-in RS-485 port and the optional GPRS/GSM module
make remote flow monitoring easy and
reliable.
Due
to the non-intrusive nature of the clamp-on technology, there is no
pressure drop, no moving parts, no leaks, no risk of contamination, no
risk of corrosion, no pressure dependency and no blockage on the flow.
The installation is very simple and requires no special skills or tools. The cost of installation, operation, and maintenance is lower
than that of conventional flowmeters.
STUF-300FxB is an ideal choice for demanding applications where
low-cost, high-performance and non-intrusiveness are a must.
Applications
include, but are not limited to, liquid process control, water flow
measurement (hot/chill water, city water, sea water), sewage and sludge measurement, and measurement of oil
(crude/diesel/fuel), chemicals (alcohol, acids, etc.),
beverages, and many other liquids.
﹛Specifications:
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Main Unit |
Repeatability |
Better than ㊣0.5% |
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Accuracy |
Better than ㊣1%. Can reach
㊣0.5 when on-situ calibration is available |
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Response Time |
0.5s. 0-99s user-programmable |
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Velocity |
-52ft/s
- +52 ft/s (-16m/s - +16 m/s), bi-directional. |
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Display |
LCD with backlight. 2 x 20 character display.
Displays instantaneous flow rate,
totalized flow rate,
velocity, sound speed, time, analog inputs, etc. |
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Units |
English (U.S.) or metric
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Signal Outputs |
Current output: 4-20mA or 0-20mA. Impedance 0-1k. Accuracy 0.1% |
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Isolated
OCT output: can be programmed as pulse output for flow
totalizers or frequency output for flow rate |
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Relay: can be programmed to control alarm, valve or batch
process |
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Sound alarm |
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Signal Inputs |
One channel 4-20mA current
input: for signals such as temperature, pressure, liquid level.
etc. Accuracy 0.1%. Additional analog input channels are
available upon request.
Two RTD temperature channels (refer to model STUF-300R1B): to
accommodate two PT100 temperature sensors. Thermal energy
measurement and calculation functionalities implemented. |
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Recording |
Automatically records the following information:
1) The totalizer data of the last 64 days / 64 months / 64 years;
2) The power time and corresponding flow rate of the last 64 power-on and -off events;
3) Allows for manual or automatic flow loss compensation;
4) The instrument working status of the last 64 days.
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Communication Interface
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Isolated RS-485. Supports the MODBUS protocol.
Optional GPRS / GSM module for networking, remote monitoring and
remote control (for model STUF-300FNB only)
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Enclosure |
Protection Class: IP65 (NEMA 4X)
Explosive Proof Class: ExdIIBT4 (for model STUF-300F2B only)
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Liquids |
Liquid Types |
Virtually all commonly used liquids (full pipe) |
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Liquid Temp |
-40˚F ~ 312˚F (-40˚C
~ 155˚C), depending on transducer type |
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Suspension concentration |
< 20,000ppm. Particle or air bubble
size should not exceed 75um |
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Pipe |
Pipe Size |
1" ~ 240"
For pipe size of 1§ and smaller, the STUF-300FxG flow-cell flowmeter is recommended |
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Pipe Material |
All metals, most plastics, fiber
glass, etc. Allows for pipe liner. |
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Pipe Straight Run |
15D or longer preferred, where D
is pipe diameter.
If a pump or valve is near upstream, the straight pipe section should be > 30D. |
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Cable |
Shielded transducer cable.
Standard length 15ft (5m). Can be extended to 1640ft (500m). Contact the manufacturer for
longer cable requirement.
Cable should not be laid in
parallel with high-voltage power lines. Neither should it be
close to strong interference sources such as power transformers. |
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Environment |
Temperature |
Main unit: 0˚F
- 176˚F (-30˚C - 80˚C) |
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Transducer: -40˚F
~ 212˚F (-40˚C ~ 100˚C) for
the standard version;
-40˚F ~ 312˚F (-40˚C
~ 155˚C) for the higher temperature version
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Humidity |
Main unit: 85% RH |
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Transducer: water-immersible,
water depth less than 10＊ (3m) |
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Power |
AC: 90V / 260V, or, DC: 18VDC-36VDC
<1 Watt |
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Weight |
Standard main unit: 4 lb (2 kg),
Network main unit: 5 lb (2.5 kg)
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Transducer Options:
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Type S1
Small size transducer (magnetic)
for pipe size 1§ 每 4§ (DN25 每 DN100mm)
Note: for pipes of 1§ and below, we recommend our flow-cell
transducer (Stuf-300FxG.)
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Type S1HT
Small size transducer
high temperature (up to 155∼C)
for pipe size 1§ 每 4§ (DN25 每 DN100mm)
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Type M1
Medium size transducer (magnetic)
for pipe size 2§ 每 28§ (DN50 每 DN700mm)
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Type M1HT
Medium size transducer
high temperature (up to 155∼C)
for pipe size 2§ 每 28§ (DN50 每 DN700mm)
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Type L1
Large size transducer (magnetic)
for pipe size 11§ 每 240§ (DN300 每 DN6,000mm)
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