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Home > products > Wall-Mounted Ultrasonic Flow Meter > ST505 Wall-Mounted Ultrasonic Flow Meter with Data Storage and Clamp-On Transducer

ST505 Wall-Mounted Ultrasonic Flow Meter with Data Storage and Clamp-On Transducer

Product Details

Place of Origin: ShenZhen

Brand Name: Flo-Instru

Certification: CE; ISO9001

Model Number: ST505

Payment & Shipping Terms

Minimum Order Quantity: 1

Packaging Details: Conventional Packaging

Delivery Time: 3-5 working days

Payment Terms: T/T

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Highlight:

Data Storage Ultrasonic Flow Meter

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Clamp-On Transducer Ultrasonic Flow Meter

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RS485 Wall-Mounted Ultrasonic Flow Meter

Velocity Range:
0.03~±16ft/s (0.01~±5m/s)
Accuracy:
±1% Of Measured Value
Repeatability:
0.3% Of Measured Value
Pipe Size:
1"~48" (25mm~1200mm)
Power Supply:
24V DC
Communication:
RS485
Velocity Range:
0.03~±16ft/s (0.01~±5m/s)
Accuracy:
±1% Of Measured Value
Repeatability:
0.3% Of Measured Value
Pipe Size:
1"~48" (25mm~1200mm)
Power Supply:
24V DC
Communication:
RS485
ST505 Wall-Mounted Ultrasonic Flow Meter with Data Storage and Clamp-On Transducer
Product Overview

ST505 Stationary Ultrasonic Flowmeter — Integrate into your management system to provide remote measurement services.

The ST505 Ultrasonic Flowmeter uses the most reliable digital signal processing technology, delivering flow measurement for a wide range of liquids and pipe sizes with high accuracy and reliability. Combined with outstanding performance transducers and higher industrial-level materials, Flo-Instruments ensures long-term operation without concern.

Clear menu display selections make the instrument very convenient to use. Clamp-on transducers make the unit more flexible across a wide range of applications.

The ST505 ultrasonic flowmeter is based on Transit-Time technology, which provides high measurement accuracy. The ST505 uses a clamp-on transducer that collects flow data simply by clamping onto the outside of the pipe. It never comes into contact with the fluid, so it will not cause liquid pollution, pressure reduction, leakage, or similar issues.

Key Benefits
  • Measures the actual flow and total consumption of various liquids.
  • No loss of process control, optimization of assets and efficiency, no downtime or expense from calibration.
  • Adaptive signal processing algorithms optimize performance, ensuring accurate measurements even in challenging flow conditions.
  • Clear display interface and LCD display with alarm function — easy to operate and debug.
  • Utilizes transit-time ultrasonic technology to realize bidirectional flow measurement by precisely measuring the time it takes for ultrasonic signals to travel upstream and downstream.
  • Leverages data logging capabilities to analyze historical flow patterns for system optimization.
  • Built-in keypad and simple menu system for fast and easy programming of pipe diameter, pipe material, liquid type, and measurement units.
Product Features
Dimensions
ST505 ultrasonic flowmeter transmitter dimensional drawing with measurements ST505 ultrasonic flowmeter transmitter unit front and side view

Transmitter

ST505 clamp-on ultrasonic transducer dimensional drawing with measurements

Transducer

Technical Information
Performance Specifications
Performance Specifications
Velocity Range 0.03~±16 ft/s (0.01~±5 m/s)
Accuracy ±1% of measured value
Repeatability 0.3% of measured value
Pipe Size 1" ~ 48" (25 mm ~ 1200 mm)
Power Supply 24V DC
Keypad 16 touch buttons
Display (20*2) alphanumeric, backlit LCD
Function Specifications
Function Specifications
Output Analog output: 4~20 mA, max load 750Ω
Pulse output: 0~9999 Hz, OCT (min. and max. frequency adjustable)
Relay output: max 1 Hz (1A@125V AC or 2A@30V DC)
Communication RS485
Liquid Water, sea water, oil, alcohol, etc.
Pipe Material PVC, stainless steel, carbon steel, copper, etc.
Physical Specifications
Physical Specifications
Transmitter Die-cast aluminum, IP65, CNC machined
Transducer Encapsulated design, protection grade IP68
Double-shielded transducer cable
Standard/maximum cable length: 30 ft / 1000 ft (9 m / 305 m)
Temperature Transmitter: -40℉~140℉ (-40℃~60℃)
Transducer: 32℉~140℉ (0℃~60℃) Standard
Humidity Up to 99% RH, non-condensing
Installation Methods
V Method

The "V" method is considered the standard method. It usually gives a more accurate reading and is used on pipe diameters ranging from approximately 25 mm to 400 mm (1" ~ 16"). It is convenient to use but still requires proper installation of the transducer, contact on the pipe at the pipe's centerline, and equal spacing on either side of the centerline.

Diagram of V method transducer installation showing signal path reflecting off pipe wall
Z Method

The signal transmitted in a "Z" method installation has less attenuation than a signal transmitted with the "V" method. This is because the "Z" method utilizes a directly transmitted (rather than reflected) signal that traverses the liquid only once. The "Z" method is able to measure on pipe diameters ranging from 100 mm to 3000 mm (4" ~ 120").

Diagram of Z method transducer installation showing direct signal path through pipe
N Method

With the "N" method, the sound waves traverse the fluid twice and bounce three times off the pipe walls. It is suitable for small pipe diameter measurement. Measurement accuracy can be improved by extending the transit distance with the "N" method (uncommonly used).

Diagram of N method transducer installation showing multiple signal reflections through pipe
W Method

As with the "N" method, measurement accuracy can also be improved by extending the transit distance with the "W" method. The sound waves traverse the fluid four times and bounce four times off the pipe walls. It is suitable for very small pipes (diameter less than 50 mm / 2").

Diagram of W method transducer installation showing four signal passes through pipe
Package & Accessories
ST505 ultrasonic flowmeter package contents including transmitter, transducers, cables, and accessories
Ordering Information
ST505 Code Specification
F Ultrasonic Flow Meter
E Ultrasonic BTU / Energy Meter (Optional)
Transducer
CT039 Insertion: Liquid Temp. 32℉~140℉ (0℃~60℃) (Standard)
Cable Length
L Standard cable length: 33 ft (10 m)
L+ On request — other lengths available
ST505 F CT039 | L — Complete ordering information