SUTO S418 Instruction And Operation Manual

Thermal mass flow sensor

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English
Instruction and operation manual
S418
Thermal mass flow sensor
(with data logger)

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Summary of Contents for SUTO S418

  • Page 1 English Instruction and operation manual S418 Thermal mass flow sensor (with data logger)
  • Page 2 The device is destined exclusively for the described application. SUTO offers no guarantee for the suitability for any other purpose. SUTO is also not liable for consequential damage resulting from the delivery, capability or use of this device.
  • Page 3: Table Of Contents

    10.1 Features................19 10.2 Operations.................20 10.2.1 Logger configuration............20 10.2.2 Log analysis and export..........20 11Calibration................21 12 Disposal or waste..............21 13 Warranty.................22 Appendix A Specifications...............23 A.1 Flow ranges.................23 A.2 Error codes................25 Appendix B Modbus communication example........26 Appendix C LRC and CRC calculation..........28 S418...
  • Page 4: Safety Instructions

    • Consider all regulations for electrical installations. • The system must be disconnected from any power supply during maintenance. • Any electrical work on system is only allowed by authorized qualified personal. S418...
  • Page 5 • Do not exceed the maximum operation temperature at the sensors tip. • Avoid condensation on the sensor element as this will affect accuracy enormously. Storage and transportation • Make sure that the transportation temperature is between -30 ... +70 °C. S418...
  • Page 6: Rf Exposure Information And Statement

    • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. S418...
  • Page 7: Application

    3 Application The S418 is a thermal mass flow sensor which is designed to measure the consumption of compressed air and other gases within the permissible operating parameters. These parameters can be found in the technical data section.
  • Page 8: Technical Data

    Maximum pressure drop at the maximum flow of Standard (S) flow range: • DN8 type : 30 hPa • DN15 type: 100 hPa • DN20 type: 100 hPa • DN25 type: 200 hPa Casing Process connection: aluminum alloy Wetted parts: aluminum alloy S418...
  • Page 9: Electrical Data

    Use the Android app S4C-FS (Free for download on Google Play Store) Logger readout Use windows-based software S4A via USB (Free for download on the SUTO Website) 5.4 Output signals Analogue output Signal: 4 ... 20 mA, isolated Scaling: 0 to max flow...
  • Page 10: Accuracy

    * The specified accuracy is valid only within the minimum and maximum flow rates that are indicated in Appendix A.1. 5.6 Additional data for models with pressure sensor Accuracy ± 0.5% FS Parameters Pressure: bar (default) or psi Sensor Piezzo-resistive sensor Measuring range 0 … 1.0 MPa S418...
  • Page 11: Dimensional Drawing

    6 Dimensional drawing 6 Dimensional drawing A (mm) B (mm) C (mm) D (mm) E (mm) DN 8/15 35.0 48.0 120.4 35.0 93.0 DN 20/25 48.0 61.0 178.0 48.0 106.0 S418...
  • Page 12: Installation

    • The sensor is for indoor use only! At an outdoor installation, the sensor must be protected from solar radiation and rain. • It is strongly recommend not to install S418 permanently in the wet environment which exists usually right after a compressor outlet.
  • Page 13: Led Indicators

    7 Installation 7.2 LED indicators The S418 provides four LED indicators on the display panel, which indicate the status of the data logger, display, and Bluetooth connection separately. Function Status Indicator for the logger state On: NAND flash is formatting.
  • Page 14: Electrical Connection

    5 m cable with a M8 connector on one side and open wires on the other side. To operate the S418, one cable connection is sufficient. However if the pulse output is to be used or the supply and signal should be on separate cables, a second connection cable must be ordered.
  • Page 15: Sensor Signal Outputs

    The sensor will send out one pulse per consumption unit. This pulse output can be connected to an external pulse counter to count the total consumption. The number of m per second are summed up and indicated after one second. Pulse length depends on flow rate. S418...
  • Page 16 8 Sensor signal outputs Volumetric flow Volumetric flow Pulse length Max. pulse [ms] output per hour ≦ ≦ 10800 1080 > 3 > 10800 2880 > 6 > 21600 3960 Pulse connection diagram Variant 1: Variant 2: S418...
  • Page 17: Modbus Output

    Flow FLOAT 4-byte Consumption UNIT32 4-byte Temperature FLOAT 4-byte Pressure 0.01 FLOAT 4-byte Remarks • All numbers are in little-endian format. • Function code: 03. • The measurement value is always available in the programmed physical unit. S418...
  • Page 18: Configuration

    9 Configuration 9 Configuration To change any settings on the S418, please download and install the service App S4C-FS which is available on the Google Play store or our Website. This App runs on any Android system with BlueTooth supported.
  • Page 19: Data Logging

    • The S418 log file supports up to 5.6 million records due to its memory size, which is equivalent to 64-day data at the one- second sampling rate.
  • Page 20: Operations

    10 Data logging 10.2 Operations 10.2.1 Logger configuration You can control and configure the S418 data logger by using the S4C-FS App. Detailed steps are as follows. 1. Install and launch the S4C-FS App. For more information, see the S4C-FS Instruction and Operation Manual.
  • Page 21: 11Calibration

    The sensor, the accessories and its packings must be disposed according to your local statutory requirements. The dispose can also be carried by the manufacturer of the product, for this please contact the manufacturer. S418...
  • Page 22: Warranty

    13 Warranty 13 Warranty SUTO provides a warranty for this product of 24 months covering the material and workmanship under the stated operating conditions from the date of delivery. Please report any findings immediately and within the warranty time. If faults occur during the warranty time, SUTO will...
  • Page 23: Appendix A Specifications

    (S) 0.45 47.7 1.91 3.81 6.67 range (L) ATTENTION: Oil-and grease-free cleaning is required. Tip: To determine measuring range for other gases, you can use the tool “Flow range calculator” which is available for download on our Website. S418...
  • Page 24 Appendix A Specifications Order Table Order no. Size Range Output Gas 1 Gas 2 Description S695 418 S418, thermal mass flow meter, 1.5% o.RDG., 24 VDC DN8 G inner thread DN15 G inner thread DN20 G inner thread DN25 G inner thread DN8 G inner thread, inc.
  • Page 25: Error Codes

    When an error code shows on the LED display, use the following table to identify the error cause. Error code Description Er. 01 Real time clock failure Er. 02 ADC failure Er. 04 EEPROM failure Er. 08 NAND flash failure Er. 10 Pressure sensor failure S418...
  • Page 26: Appendix B Modbus Communication Example

    Coil address Hi 1 byte Coil address Hi 1 byte Coil address Lo 1 byte Coil address Lo 1 byte Data Hi 1 byte Data Hi 1 byte Data Lo 1 byte Data L 1 byte 2 bytes 2 bytes S418...
  • Page 27 1 byte Slave address 1 byte Function code 1 byte Function code 1 byte 2 bytes Byte count 1 byte Slave ID 2 bytes Device run 2 bytes indicator Product code 2 bytes Product name 20 bytes 2 bytes S418...
  • Page 28: Appendix C Lrc And Crc Calculation Lrc Generation

    The function takes two arguments: unsigned char *auchMsg; /* A pointer to the message buffer containing binary data /* to be used for generating the LRC, unsigned short usDataLen; /* The quantity of bytes in the message buffer. S418...
  • Page 29 5. Repeat steps 3 and 4 until 8 shifts have been performed. When this is done, a complete 8-bit byte will have been processed. 6. Repeat steps 2 through 5 for the next 8-bit byte of the message. Continue doing this until all bytes have been processed. S418...
  • Page 30 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3, 0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, S418...
  • Page 31 /* will index into CRC lookup table */ while(usDataLen—) /* pass through message buffer */ uIndex = uchCRCHi ^ *puchMsg++ ; /* calculate the CRC */ uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex] ; uchCRCLo = auchCRCLo[uIndex] ; return (unsigned short int)((uchCRCHi << 8) | uchCRCLo); S418...
  • Page 32 SUTO iTEC GmbH SUTO iTEC (ASIA) Co., Ltd. Werkstr. 2 Room 10, 6/F, Block B, Cambridge Plaza 79426 Buggingen 188 San Wan Road, Sheung Shui, N.T. Germany Hong Kong Tel: +49 (0) 7631 936889-0 Tel: +852 2328 9782 Fax: +49 (0) 7631 936889-19...

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