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SUTO S421 Instruction And Operation Manual Download Page 11

 6 Technical Data

Remarks

: 

•

Measuring ranges are stated under following conditions:

•

Standard flow in air

•

Reference pressure: 1000 hPa

•

Reference Temperature: +20°C

•

To calculate flow ranges based on pipe sizes and reference 
conditions in your site, download and install the free "Flow range 
calculator" tool from http://www.suto-itec.com. 

To fast access the tool download page, enter "flowrange" (without 
spaces) in the search field. 

S421

11

Summary of Contents for S421

Page 1: ...English Instruction and operation manual S421 Thermal mass flow sensor ...

Page 2: ...non compliance with this manual Should the device be tampered with in any manner other than a procedure which is described and specified in the manual the warranty is void and the manufacturer is exempt from liability The device is designed exclusively for the described application SUTO offers no guarantee for suitability for any other purpose SUTO is also not liable for consequential damage resul...

Page 3: ... 1 Installing the sensor 19 9 2 Removing the sensor 20 9 3 Electrical connection 21 9 3 1 M12 connection pins 21 9 3 2 Ethernet connection 23 10 Sensor signal outputs 25 10 1 Analog output 25 10 2 Pulse output 25 10 2 1 Pulse Connection Diagrams A1410 27 10 2 2 Pulse Connection Diagrams A1413 28 10 3 Modbus output 30 10 4 M Bus output 31 11 Configuration 32 11 1 Service app S4C FS 32 11 2 Sensor d...

Page 4: ...ntact the manufacturer WARNING Compressed air Any contact with quickly escaping air or bursting parts of the compressed air system can lead to serious injuries or even death Do not exceed the maximum permitted pressure range see sensors label Only use pressure tight installation material Avoid that persons get hit by escaping air or bursting parts of the instrument The system must be pressureless ...

Page 5: ...fety instructions It is not allowed to use the product in explosive areas Please observe the national regulations before during installation and operation Remarks It is not allowed to disassemble the product Always use a spanner to mount the product properly ATTENTION Measurement values can be affected by malfunction The product must be installed properly and frequently maintained Otherwise it mig...

Page 6: ... is between 10 50 C Avoid direct UV and solar radiation during storage For the storage the humidity must be 90 with no condensation 2 Registered trademarks SUTO Registered trademark of SUTO iTEC MODBUS Registered trademark of the Modbus Organization Hopkinton USA HART Registered trademark of the HART Communication Foundation Austin USA PROFIBUS Registered trademark of the PROFIBUS User Organizatio...

Page 7: ...e pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions might cause harmful interference to radio communications However there is no guarantee that interference wil...

Page 8: ...d in compressed air systems in industrial environment and is not developed to be used in explosive areas For the use in explosive areas please contact the manufacturer 5 Features Inline type sensor for high accuracy in small tube diameters Thermal mass flow measurement virtually independent of pressure and temperature changes IP65 casing for robust protection in the industrial environment Very fas...

Page 9: ...Standard range 92 7 m s Low range 1 3 of the standard range Vacuum Atmospheric range 1 3 of standard range Operating temperature 30 140 C fluid temperature 30 70 C casing 10 50 C display optional Humidity of the measured medium 90 no condensation Operating pressure 0 1 6 MPa Optional 4 0 MPa Housing material PC ABS Material of the shaft sensor head welded parts Stainless steel 1 4404 SUS 316L Prot...

Page 10: ...s output See section 10 4 on page 31 6 4 Accuracy Accuracy 1 5 of reading 0 3 FS optional 1 of reading Temperature drift 0 05 K Stated accuracy at Ambient process temperature 23 C 3 C Ambient process humidity 90 Process pressure at 0 6 MPa Repeatability 0 25 of reading Specified accuracy is valid only within the minimum and maximum flow rates that are indicated in section 6 5 on this page 6 5 Volu...

Page 11: ... pressure 1000 hPa Reference Temperature 20 C To calculate flow ranges based on pipe sizes and reference conditions in your site download and install the free Flow range calculator tool from http www suto itec com To fast access the tool download page enter flowrange without spaces in the search field S421 11 ...

Page 12: ...External thread S421 1 2 1 2 DN15 300 210 197 4 186 7 R 1 2 S421 3 4 3 4 DN20 475 275 200 2 186 7 R 3 4 S421 1 1 DN25 475 275 203 6 186 7 R 1 S421 1 1 4 1 1 4 DN32 475 275 207 9 186 7 R 1 1 4 S421 1 1 2 1 1 2 DN40 475 275 210 9 186 7 R 1 1 2 S421 2 2 DN50 475 275 216 9 186 7 R 2 S421 2 1 2 2 DN65 475 275 232 7 194 6 R 2 1 2 S421 3 2 DN80 475 275 245 5 201 0 R 3 12 S421 ...

Page 13: ...m n x ØL mm S421 3 4 3 4 DN20 475 275 239 2 186 7 105 75 4xØ14 S421 1 1 DN25 475 275 244 2 186 7 115 85 4xØ14 S421 1 1 4 1 1 4 DN32 475 275 256 7 186 7 140 100 4xØ18 S421 1 1 2 1 1 2 DN40 475 275 261 7 186 7 150 110 4xØ18 S421 2 2 DN50 475 275 269 2 186 7 165 125 4xØ18 S421 2 1 2 2 1 2 DN65 475 275 287 1 194 6 185 145 8xØ18 S421 3 3 DN80 475 275 301 201 0 200 160 8xØ18 S421 13 ...

Page 14: ...2 186 7 95 2 66 5 4xØ15 7 S421 3 4 3 4 DN20 475 275 245 4 186 7 117 3 82 5 4xØ19 S421 1 1 DN25 475 275 248 7 186 7 123 9 88 9 4xØ19 S421 1 1 4 1 1 4 DN32 475 275 253 4 186 7 133 3 98 5 4xØ19 S421 1 1 2 1 1 2 DN40 475 275 264 4 186 7 155 4 114 3 4xØ22 3 S421 2 2 DN50 475 275 269 3 186 7 165 1 127 0 4xØ19 S421 2 1 2 2 1 2 DN65 475 275 289 9 194 6 190 5 149 3 8xØ22 3 S421 3 3 DN80 475 275 305 8 201 0...

Page 15: ...ly Please note the following Careful attention must be paid to the design of the inlet and outlet section Obstructions can cause counter flow turbulence as well as turbulence in the direction of the flow The sensor is for indoor use only At an outdoor installation the sensor must be protected from solar radiation and rain It is strongly recommended not to install S421 permanently in a wet environm...

Page 16: ...dded to the measuring section to meet the minimum inlet requirements Please refer to the installation types below and select your additional inlet section LA from the table Remark The length of an additional inlet section depends on the pipe diameter If there is any combination of the below situations the longest straight inlet section must be maintained 1 2 3 4 16 S421 ...

Page 17: ...790 1100 1300 2 Reduction Section size DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 LA mm 110 160 270 440 560 790 1100 1300 3 90 Bend Section size DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 LA mm 110 160 270 440 560 790 1100 1300 4 2 x 90 Bend Section size DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 LA mm 190 270 410 620 770 1100 1500 1700 S421 17 ...

Page 18: ... T piece Section size DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 LA mm 190 270 410 620 770 1100 1500 1700 7 Shut off value Section size DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 LA mm 590 810 1100 1500 1800 2400 3200 3800 8 Filter or similar unknown objects Section size DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 LA mm 590 810 1100 1500 1800 2400 3200 3800 18 S421 ...

Page 19: ...tificate NA 1 Measuring section A1301 A1308 R thread A1321 A1328 Flange EN 1092 1 A1341 A1348 Flange ANSI 16 5 9 1 Installing the sensor The S421 is shipped with a mounted measurement section Please make sure that the sensor is installed correctly to the flow direction in the tube Observe the flow direction indicated on the housing Make sure that the flow direction matches the flow direction of th...

Page 20: ...at the connection thread 3 Pull out the shaft slowly 4 The measuring section can be closed with the optional closing cap so that the system can operate normally during maintenance of the sensor Re installation after maintenance 1 Place the O ring into the recess of the connection nut 2 Insert the sensor back to the pipe The S421 comes with the Poka Yoke design for simple and error free insertion 3...

Page 21: ...e type of the M12 connector based on the output option P N Output option Connector type A1410 4 20 mA Pulse A M12 5 pin B M12 5 pin A1411 Modbus RTU A M12 5 pin B M12 5 pin A1412 M Bus output A M12 5 pin B M12 5 pin A1413 4 20 mA Pulse compatible to S400 A M12 5 pin B M12 5 pin A1424 Modbus TCP A M12 5 pin B M12 8 pin X coded General connection pins male View onto the sensor connector Ethernet con...

Page 22: ...Modbus TCP P N A1424 A SDI VB VB DIR DIR B See section 9 3 2 on the next page Wire color brown white blue black grey Legend to pin assignment GND Ground for Modbus RTU SW Isolated pulse output SDI Digital signal internal use DIR Flow direction input VB Negative supply voltage D Modbus RTU data VB Positive supply voltage D Modbus RTU data I Positive 4 20 mA signal M Bus M Bus data I Negative 4 20 m...

Page 23: ...standards Type A The PoE switch powers the device via Pair 2 Pin 1 and Pin 2 and Pair 3 Pin3 and Pin6 Type B The PoE switch powers the device via Pair 1 Pin 4 and Pin 5 and Pair4 Pin7 and Pin8 This sensor supports both types Connection cable M12 X coded to RJ45 When Modbus TCP is chosen as the sensor output a 5 m 8 pore cable is supplied in the delivery package The cable has the M12 and RJ45 plugs...

Page 24: ...r does not support T568A wiring method M12 X coded RJ45 Signal Color code Pair designation 1 1 Tx Vb Vb White Orange W O Pair 2 2 2 Tx Vb Vb Orange O 3 3 Rx Vb Vb White Green W G Pair 3 4 6 Rx Vb Vb Green G 5 7 NA Vb White Brown W BR Pair 4 6 8 NA Vb Brown BR 7 5 NA Vb White Blue W BL Pair 1 8 4 NA Vb Blue BL 24 S421 ...

Page 25: ... calculated using the free Flow range calculator tool available in http www suto itec com For more information about how to download see section 6 5 on page 10 For other ranges please contact the manufacturer 10 2 Pulse output The sensor outputs one pulse per a consumption unit This pulse output can be connected to an external pulse counter to count the total consumption The number of m3 per secon...

Page 26: ...et the pulse to 1 pulse per 10 consumption units or 1 pulse per 100 consumption units using the S4C FS service App S4C FS or a connected display Example with setting of 1 pulse per 10 m3 the sensor sends one pulse each 10 m3 Volumetric flow m3 s Volumetric flow m3 h Pulse length ms Max pulse output per hour 3 10800 120 1080 3 10800 60 2880 6 21600 30 3960 26 S421 ...

Page 27: ...10 Sensor signal outputs 10 2 1 Pulse Connection Diagrams A1410 Using the isolated pulse switch Connector B Pin 2 and 3 Variant 1 Variant 2 S421 27 ...

Page 28: ...10 Sensor signal outputs 10 2 2 Pulse Connection Diagrams A1413 Using the isolated pulse switch Connector B Pin 4 and 5 Variant 1 Variant 2 28 S421 ...

Page 29: ...10 Sensor signal outputs Using the Pulse Output P Connector A Pin 5 Variant 1 Variant 2 GND of the external pulse counter might be connected to VB of the sensor S421 29 ...

Page 30: ...ddress Dynamic or Static Subnet Dynamic or Static Gateway Dynamic or Static Timeout 200 ms Remarks Modbus output settings can be changed using the S4C FS Android service app or the optional sensor display In the Modbus TCP mode a slave device does not support concurrent connections because it can respond to only one polling message at a time Holding register Modbus RTU and Modbus TCP Channel descr...

Page 31: ...N or BIG ENDIAN Byte sequencing Byte order Byte sequencing HEX Example MID LITTLE ENDIAN Read from the device A B C D 0x 0A 11 42 C5 LITTLE ENDIAN B A D C 0x 11 0A C5 42 BIG ENDIAN C D A B 0x 42 C5 0A 11 10 4 M Bus output Communication parameters Primary Address 1 Secondary Address 8 digit serial number of the sensor Manufacturer Code 0x15C4 M Bus version 1 Baud rate 2400 Response delay ms 7 Respo...

Page 32: ...TO flow sensors wirelessly You can download S4C FS from Google Play Store or SUTO website and install it as you do for any apps on your Android devices For more information about the description of the sensor settings see the S4C FS Instruction and Operation Manual which you can download from our website Download Search S4C FS ATTENTION Improper changes in the settings might lead to wrong measurem...

Page 33: ...wing View the online flow and consumption values View error messages Change the sensor settings Operation keys Enter key Press for 3 seconds to enter the configuration mode Press to confirm your selection Up key Press to choose a parameter item entry box or to adjust the value Down key S421 33 ...

Page 34: ...he display enters the standard mode showing the online values as below Home page Status bar Moving bar to indicate flow value Measurement values Icons shown in the status bar Indicate status or warnings for the sensor in service Icon Description Icon Description Calibration expired Pressure sensor damaged Temperature over operating range Temperature sensor damaged Flow over measuring range Flow di...

Page 35: ...on mode 2 Enter the unlock code 12 using the Up and Down keys and then press the Enter key to confirm 3 Use the Up and Down keys to choose a setting that needs to be changed 4 Use the Up and Down keys to select the desired entry box or adjust the values 5 Press the Enter key to confirm the changes S421 35 ...

Page 36: ...11 Configuration 11 2 3 Menu map 36 S421 ...

Page 37: ...11 Configuration S421 37 ...

Page 38: ...n service please contact the manufacturer 13 Maintenance To clean the sensor it is recommended to use distilled water or isopropyl alcohol only ATTENTION Do not touch the surface of the sensor plate Avoid mechanical impact on the sensor e g with a sponge or a brush If the contamination can not be removed send the sensor to the manufacturer for inspection and maintenance 14 Disposal or waste Electr...

Page 39: ...address Lo 1 byte Register Hi 1 byte No of points Hi 1 byte Register Lo 1 byte No of points Lo 1 byte CRC 2 bytes Register Hi 1 byte Register Lo 1 byte CRC 2 bytes 05 0x05 Write single coil Request Response Slave address 1 byte Slave address 1 byte Function code 1 byte Function code 1 byte Coil address Hi 1 byte Coil address Hi 1 byte Coil address Lo 1 byte Coil address Lo 1 byte Data Hi 1 byte Da...

Page 40: ...o 1 byte No of registers Hi 1 byte No of registers Hi 1 byte No of registers Lo 1 byte No of registers Lo 1 byte Byte count 1 byte CRC 2 bytes Data Hi 1 byte Data Lo 1 byte Data Hi 1 byte Data Lo 1 byte CRC 2 bytes 17 0x11 Report slave ID Request Response Slave address 1 byte Slave address 1 byte Function code 1 byte Function code 1 byte CRC 2 bytes Byte count 1 byte Slave ID 2 bytes Device run in...

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Page 42: ...42 S421 ...

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Page 44: ... 188 San Wan Road Sheung Shui N T Hong Kong Tel 49 0 7634 50488 00 Fax 49 0 7634 50488 19 Email sales suto itec com Website http www suto itec com Tel 852 2328 9782 Fax 852 2671 3863 Email sales suto itec asia Website http www suto itec com All rights reserved Modifications and errors reserved S421_im_en_2021 1 44 S421 ...

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