Supplier of control and measuring instruments in Latvia, Estonia and Lithuania. Worldwide delivery
Supplier of control and measuring instruments in Latvia, Estonia and Lithuania. Worldwide delivery
The SUTO S421 Inline Thermal Mass Flow Sensor provides reliable compressed air and gas flow and consumption monitoring in main and header lines with a wide measuring range. With the high resolution and sampling rate, a fast and precise measurement is achieved.
Made in Germany. brand SUTO, model S421
Fast delivery to Latvia, Estonia and Lithuania. International delivery to Europe, Asia, Africa and other continents available on request
Our warehouse is located in Riga, Latvia.
Retail price from 760 €
Available
Official distributor in Latvia
Time-tested American, European and Asian brands of control and measurent instruments
Special price list for organisations
We offer a significant discount for trade organisations and manufacturing companies
Worldwide shipping on request
We take care of all logistics and customs clearance. Fast delivery to Baltic countries
After-sales service and support
Warranty service and repair, expert assistance in the operation of the instruments
The S421 flow meter stores two calibration curves, allowing the sensor to be used with two different gases without losing accuracy—for example, to measure compressed air flow—and to quickly switch between them (such as from compressed air to nitrogen) via the app or the display. The optional color display is designed to show all measured values, such as flow rate and total consumption. At the same time, the display can be used to manage sensor settings, such as pipe diameter, gas type, or output signal and reference condition settings. The flow meter supports 4 output signal options: isolated analog and pulse output, Modbus/RTU, Modbus/TCP, and M-Bus.
The flow meter’s parameters are reliably protected against unauthorized changes thanks to a unique access QR code for each device.
Various settings, such as gas type, flow measurement unit, and reference standards, can be factory-set according to your needs. If you need to change settings on-site, you can use the free S4C-FS smartphone app. This allows you to change settings wirelessly on-site with a single tap on your smartphone.
Installation is performed through a measuring section with a specified diameter, equipped with an R-thread or flange connection. The sensor is supplied with factory calibration for the selected section.
Application
Features
Benefits
| MEASUREMENT | |
| Flow | |
| Accuracy | 1.5 % of reading ± 0.3 % FS (optional 1 % of reading) |
| Selectable units | m3/h, m3/min, l/min, l/s, cfm, kg/h, kg/min, kg/s |
| Repeatability | 0.25 % of reading |
| Sensor | Thermal mass flow sensor |
| Sampling rate | 10 samples / sec |
| Turndown ratio | 200:1 |
| Response time (t90) | 0.1 sec |
| Consumption | |
| Selectable units | m3, ft3, l |
| Reference conditions | |
| Selectable conditions | 20 °C 1000 mbar (ISO1217), 0 °C 1013 mbar (DIN1343) freely adjustable |
| SIGNAL INTERFACE & SUPPLY | |
| Analog output | |
| Signal | 4 … 20 mA (4-wire), isolated |
| Scaling | 0 … max flow, freely adjustable |
| Load | max. 250 Ohm |
| Update rate | Value updated ever 1 sec |
| Pulse output | |
| Signal | Switch output, normally open, max. 30 VDC, 20 mA |
| Scaling | 1 pulse per consumption unit (selectable) |
| Fieldbus | |
| Protocol | Modbus/RTU, Modbus/TCP |
| Update rate | Value updated ever 1 sec |
| Supply | |
| Voltage supply | 15 … 30 VDC |
| Current consumption | max. 200 mA |
| GENERAL DATA | |
| Configuration | |
| Wireless | S4C-FS App for mobile phones |
| PC Software | USB Service Kit + Software |
| Others | Display with 2 touch buttons |
| Display | |
| Integrated | 2.4” color graphic display with 3 touch buttons |
| Material | |
| Process connection | Stainless steel 1.4404 (SUS 316L) |
| Housing | PC + ABS |
| Sensor | Ceramic, glass coated |
| Metal parts | Stainless steel 1.4404 (SUS 316L) |
| Miscellaneous | |
| Electrical connection | 2 x M12 (5 pole); 1 x M12 (8-pole x-coded) for TCP |
| Protection class | IP65 |
| Approvals | CE, RoHS, FCC |
| Process connection | Measuring section with R-thread or Flange |
| Weight | 0.4 kg (without measuring section) |
| Operating conditions | |
| Medium | Air, N2, O2, CO2 and other gases |
| Medium quality | ISO 8573: 4.4.3 or better |
| Medium temperature | -30 … +140 °C |
| Medium humidity | < 90 % rH, no condensation |
| Operating pressure | max. 5.0 MPa (> 1.6 MPa need installation device) |
| Ambient temperature | -30 … +70 °C, -10 … +50 °C (with display) |
| Ambient humidity | < 99 % rH |
| Storage temperature | -30 … +70 °C |
| Transport temperature | -30 … +70 °C |
| Pipe sizes | ½” … 3” |
| VOLUMETRIC FLOW RANGES | ||||||
| Pipe Specifications | S401 | S421 | ||||
| Connection thread | DN | DI (mm) | S401-S (m3/h) | S401-M (m3/h) | S401-H (m3/h) | Measuring range from to |
| ½” | DN15 | – | – | 0.5 … 90 m3/h | ||
| ¾” | DN20 | – | – | 0.9 … 170 m3/h | ||
| 1” | DN25 | 27.3 | 0.5 … 147.7 | 0.6 … 294.7 | 0.6 … 356.9 | 1.5 … 290 m3/h |
| 1¼” | DN32 | 36.0 | 0.9 … 266.3 | 1.2 … 531.5 | 1.2 … 643.5 | 2 … 500 m3/h |
| 1½” | DN40 | 41.9 | 1.2 … 366.7 | 1.5 … 731.9 | 1.5 … 886.2 | 3 … 700 m3/h |
| 2” | DN50 | 53.1 | 2.0 … 600.1 | 2.5 … 1197.6 | 3.0 … 1450.0 | 4 … 1000 m3/h |
| 2½” | DN65 | 68.9 | 3.5 … 1026.5 | 5.0 … 2048.6 | 5.0 … 2480.4 | 6 … 1500 m3/h |
| 3” | DN80 | 80.9 | 5.0 … 1424.4 | 7.0 … 2842.7 | 7.0 … 3441.9 | 8 … 2500 m3/h |
| 4” | DN100 | 100.0 | 10 … 2183.3 | 12 … 4357.2 | 12.0 … 5275.7 | |
| 5” | DN125 | 125.0 | 13 … 3419.6 | 18 … 6824.4 | 18.0 … 8263.1 | |
| 6” | DN150 | 150.0 | 18 … 4930.1 | 25 … 9838.9 | 25.0 … 11913.1 | |
| 8” | DN200 | 200.0 | 26 … 8785.6 | 33 … 17533.3 | 42.0 … 21229.5 | |
| 10” | DN250 | 250.0 | 40 … 13743.9 | 52 … 27428.5 | 60.0 … 33210.7 | |
| 12” | DN300 | 300.0 | 60 … 19814.8 | 80 … 39544.1 | 100.0 … 47880.4 | |
| Model | Description | Price, € |
| S695 4120 | S421 Thermal Mass Flow Meter (Inline), 1.6 MPa | 760 |
| S695 4121 | S421 Thermal Mass Flow Meter (Inline), 4.0 MPa | 920 |
| A1003 | Option: Flow Medium: No 2nd Gas | On request |
| A1007 | Option: Flow medium Air | On request |
| A1008 | Option: Flow medium CO2 | On request |
| A1009 | Option: Flow medium O2 (cleaning for oil and grease-free) | 81 |
| A1010 | Option: Flow medium N2 | On request |
| A1011 | Option: Flow medium N2O | On request |
| A1012 | Option: Flow medium Argon | On request |
| A1013 | Option: Flow medium Natural Gas | On request |
| A1014 | Option: Flow medium H2 (For real gas calibration. Please consult manufacturer for this option in advance) | 360 |
| A1015 | Option: Other gas (specify gas or gas mix) | On request |
| A1016 | Option: Flow medium He (real gas calibration) | 490 |
| A1017 | Option: Flow medium Propane C3H8 | On request |
| A1301 | S421/S452: R thread connection, DN15, ½” | 116 |
| A1302 | S421/S452: R thread connection, DN20, ¾” | 134 |
| A1303 | S421/S452: R thread connection, DN25, 1″ | 160 |
| A1304 | S421/S452: R thread connection, DN32, 1.25″ | 160 |
| A1305 | S421/S452: R thread connection, DN40, 1.5″ | 180 |
| A1306 | S421/S452: R thread connection, DN50, 2″ | 200 |
| A1307 | S421/S452: R thread connection, DN65, 2.5″ | 320 |
| A1308 | S421/S452: R thread connection, DN80, 3″ | 320 |
| A1321 | S421/S452 flange connection EN 1092-1, PN40, DN15, ½” | 187 |
| A1322 | S421/S452 flange connection EN 1092-1, PN40, DN20, ¾” | 241 |
| A1323 | S421/S452 flange connection EN 1092-1, PN40, DN25, 1″ | 370 |
| A1324 | S421/S452 flange connection EN 1092-1, PN40, DN32, 1.25″ | 450 |
| A1325 | S421/S452 flange connection EN 1092-1, PN40, DN40, 1.5″ | 520 |
| A1326 | S421/S452 flange connection EN 1092-1, PN40, DN50, 2″ | 600 |
| A1327 | S421/S452 flange connection EN 1092-1, PN40, DN65, 2.5″ | 730 |
| A1328 | S421/S452 flange connection EN 1092-1, PN40, DN80, 3″ | 860 |
| A1341 | S421/S452 flange connection, DN15, 1/2″, class300, ANSI/B16.5 | 200 |
| A1342 | S421/452 flange connection, DN20, 3/4″, class300, ANSI/B16.5 | 255 |
| A1343 | S421/452 flange connection, DN25, 1″, class300, ANSI/B16.5 | 490 |
| A1344 | S421/452 flange connection, DN32, 1-1/4″, class300, ANSI/B16.5 | 570 |
| A1345 | S421/452 flange connection, DN40, 1-1/2″, class300, ANSI/B16.5 | 640 |
| A1346 | S421/452 flange connection, DN50, 2″, class300, ANSI/B16.5 | 710 |
| A1347 | S421/452 flange connection, DN65, 2-1/2″, class300, ANSI/B16.5 | 890 |
| A1348 | S421/452 flange connection, DN80, 3″, class300, ANSI/B16.5 | 1150 |
| A1407 | S401/S421: Vacuum / Atmospheric range (1/3 of standard range) | On request |
| A1409 | S401/S421: Standard calibration | On request |
| A1410 | Option: Isolated 4 … 20 mA + Pulse output | On request |
| A1411 | Option: Modbus/RTU output | On request |
| A1424 | Option: Modbus/TCP output with PoE support | 220 |
| A1413 | S401/S421: 4 … 20 mA + pulse output (pin compatible to S400 / 420) | On request |
| A1420 | S401/S421/S430: Color graphic display, 2.4″ with keypad | 180 |
| A1426 | S421: Standard range version | On request |
Accessories
| Model | Description | Price, € |
| A553 0104 | Sensor cable 5m with M12 connector, open wires, AWG24 (0.2 mm2) | 30 |
| A553 0105 | Sensor cable 10m with M12 connector, open wires, AWG24 (0.2 mm2) | 50 |
| A553 0154 | Cable to connect power bank, 1.8 m, USB-C connector for power bank, M12 connector | 20 |
| A553 0146 | Sensor cable 5m with M12 and RJ45 connectors, PoE supported, AWG24 (0.2 mm2) | 50 |
| A695 0008 | Option NPT1/2″ thread adapter | 10 |
| A695 0009 | Option PT1/2″ thread adapter | 10 |
| C190 0002 | Closing cap for S421 / S452 Measuring Section,Stainless steel 1.4404 with sealing ring, M32 thread | 20 |
| C190 0594 | Thread adapter, G1/2” inner thread for flow sensor, G1/4” inner thread for pressure sensor, R1/2” external thread to process connection (ball valve) | 30 |
You can request the necessary certificates, documentation, instructions and user guide for SUTO S421 using the special form.
You can buy SUTO S421 in Latvia at a price starting from 760 € in «OLIL SIA» by leaving a request on the website, by phone +371 672 70580 or by email olil@olil.lv. SUTO S421 price are subject to change depending on exchange rates. We deliver instruments by transport companies in Latvia, Estonia and Lithuania. Worldwide shipping to Europe, Asia, Africa, North and South America available on request.
See also: Flow meters
