S461

S461 Smart Ultrasonic Flow Meter for Water and other Liquids (Clamp-On)

Reliable non-Invasive flow monitoring of water and various other liquids.

Noninvasive plug & play liquid measurement

As energy meter to monitor heat exchangers

Integrated Data Logger with 8 million samples

User-friendly configuration through smartphone app

Flexible Installation thanks to the compact design

Used in stationary and portable applications

4... 20 mA & Switch/Pulse; Modbus/RTU; Modbus/TCP with PoE

Clamp-on installation for pipe sizes of DN40 ... DN1200

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The SUTO S461 Ultrasonic Clamp-On Flow Meter for Water and Other Liquids is an all-in-one solution to provide reliable, cost-efficient and accurate flow and consumption measurements of water and other liquids. Based on the transit time technology, S461 flow meter comes with unique features and outstanding performance.

Easy Clamp-on Installation

The S461 Smart Flow Meter is simply clamped onto the outside of the pipe and never comes in contact with the fluid. With its robust design, the main unit can be installed onto the pipe itself, on the wall or onto a DIN rail. The Flow Meter supports pipe sizes of DN40 … DN1200.
The liquid flow and consumption can be measured in both directions (Bi-directional measurement).

Can Be Used as Portable Version

The S461 is also available as a portable version in a carrying case. This allows the flowmeter to be used flexibly for different measuring locations.

Smart Configuration trough App

The configuration and setups are done through the wireless smartphone app S4C-US which can be downloaded for free from the SUTO website, Google Play Store and the Apple App Store. The app allows the user to set up the device as well as read live values, logger configuration and read out logger data. Has the ability to get an instant view of daily, weekly and monthly consumption.

Efficiency Monitoring of Heat Exchangers

By adding 2 clamp-on temperature sensors, the S461 can be used as an Energy Meter. This makes it easy to monitor the efficiency of heat exchangers as well as the liquid flow in just one device. Heat exchangers transfer heat (energy) from a higher temperature medium (hot stream) to a colder one (heated stream). S461 measures the flow rate and the temperature difference between cold stream and heated stream. Based on these measurements the recovered energy will be calculated.

Connection to Monitoring Systems

The S461 Flow Meter can be easily connected to any monitoring system through various signal interfaces: Modbus/RTU (standard), 4… 20 mA / Pulse / Alarm-Relay (optional), Modbus/TCP (optional).

Various Applications

The S461 Ultrasonic Flow Meter is used in various applications, such as Cooling / Heating / Process Water; Purified Water Measurement; Fuel, Oils, Petroleum Products; Water Treatment; Food / Beverage and more.

Please contact us here to find the most suited configurations for your application.

It measures the actual flow and total consumption of various fluids:

Cooling / Heating / Process water
Measurement of purified water
Fuel, oils, petroleum products
Water treatment
Food / Beverage
HVAC / energy systems audits
Flow measurement in the sanitary area
Hydraulic system testing
Pharmaceutical industry

MEASUREMENT
Flow
Accuracy	1.0 % o. RDG ±0.01 m/s
Selectable units	Metric: m/s, m³/h, m³/min, l/min, m³
	Imperial: ft/min, cfm, cfs, USG/min, IG/min, bbl/min
Measuring range	0 ... 12 m/s
Repeatability	0.5 % o.RDG
Transducer	Ultrasonic transducer
Sampling rate	5 samples / sec
Response time (t90)	0.1 sec
Consumption
Selectable units	Metric: m³, l
	Imperial: cf, IG, UG, bbl
Temperature
Accuracy	0.5 °C
Selectable units	Metric: °C. Imperial: °F
Measuring range	-40 ... +130 °C
Sensor	Pt1000
Energy Flow
Selectable units	Metric: GJ/h, kJ/h, kcal/h
	Imperial: MBtu/h, Btu/h
Energy
Selectable units	Metric: GJ, kJ, kcal, kWh, MWh
	Imperial: Mbtu, Btu

SIGNAL INTERFACE & SUPPLY
Analog output (Option)
Signal	4 ... 20 mA (4-wire), isolated
Scaling	0 ... max flow, freely adjustable
Load	max. 250 Ohm
Update rate	100 ms
Pulse output (Option)
Signal	Switch output, normally open, nominal value: 24 VDC/0.5 A
Scaling	1 pulse per consumption unit (selectable)
Fieldbus
Protocol	Modbus/RTU (Standard) Modbus/TCP and PoE (Option)
Supply
Voltage supply	20 ... 28 VDC
Current consumption	150 mA @ 24 VDC

GENERAL DATA
Configuration
Wireless	S4C-US App for mobile phones
Display
Size/Resolution	2.4” color (640 x 480) graphic display, 1 touch button
Data Logger
Storage	8 Mio. values
Material
Main Casing	PC + ABS
Transducer	UT-S: Industrial synthetic plastics UTH-S: Aluminum
Miscellaneous
Electrical connection	2 x M12 D code (4 pole): transducer 2 x M12 (5 pole): Signals/Supply. (8-pole x-coded) for TCP 2 x M8 (4 pole): Pt1000 (Energy Meter Version)
Protection class	Main casing: IP65. Transducer: IP68
Approvals	CE, RoHS, FCC
Dimensions	Main unit: 124 x 102 x 70 mm UT-S Transducer: 64 x 30 x 27 mm UTH-S Transducer: 68 x 34 x 34 mm
Weight	1.2 kg
Betriebsparameter
Fluids	All acoustically conductive liquids with less than 10 % gaseous
Medium temperature	-40 ... +130 °C
Ambient temperature	Main unit: 0 ... +50 °C UT-S Transducer: 0 ... +80 °C UTH-S Transducer: -40 ... +130 °C
Ambient humidity	< 99 % rH
Storage temperature	-30 ... 70 °C
Transport temperature	-30 ... 70 °C
Pipe sizes	DN40 ... DN1200

EASURING RANGE
DN	DO	Max flow
mm	mm	l/min	m3/h	cfm
40	48	905	54	32
50	60	1.414	85	50
65	76	2.389	143	84
80	88	3.619	217	128
100	114	5.655	339	200
125	139	8.835	530	312
150	165	12.723	763	449
200	219	22.618	1.357	799
250	273	35.341	2.121	1.248
300	323	50.891	3.054	1.797
500	508	141.365	8.482	4.992
1.000	1.016	565.458	33.929	19.970
1.200	1.219	814.260	48.858	28.756
Remarks: DN: nominal inner diamter DO: outer diameter (depends on standard and material)