SUTO S401 Instruction And Operation Manual
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SUTO S401 Instruction And Operation Manual

Thermal mass flow sensor
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Instruction and operation manual
S401
Thermal mass flow sensor

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Summary of Contents for SUTO S401

  • Page 1 English Instruction and operation manual S401 Thermal mass flow sensor...
  • 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

    11.2 Configuration using the display..........28 12 Service App S4C-FS..............29 13 Calibration................30 14 Maintenance................30 15 Disposal or waste..............30 16 Warranty.................30 17 Appendix A - Analogue output............32 18 Appendix B - Modbus communication example......34 19 Appendix C - LRC and CRC calculation.........36 S401...

  • 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 the system is only allowed by authorized qualified personal. S401...
  • Page 5 • Always observe the direction of the flow when installing the sensor. The direction is indicated on the housing. • Do not exceed the maximum operation temperature at the sensors tip. • Avoid condensation on the sensor element as this will affect accuracy enormously. S401...
  • Page 6 • Please make sure the storage temperature of the sensor is between -10 ... +50°C. • Avoid direct UV and solar radiation during storage. • For the storage the humidity must be <90%, no condensation. S401...

  • Page 7: Rf Exposure Information And Statement

    Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. S401...

  • Page 8: Application

    3 Application Application The S401 is a flow sensor that is designed to measure the consumption of compressed air and gases within the permissible operating parameters. These parameters can be found in the technical data section. The S401 can measure the following values: •...

  • Page 9: Technical Data

    Display (optional) 2.4” color graphics display with keypad Tube diameter 1/2” to 12” (bigger diameters on request) Process connection G1/2” (ISO 228/1) Weight 0.9 kg (220 mm standard) 0.85 kg (160 mm), 0.95 kg (300 mm), 1.0 kg (400 mm) S401...

  • Page 10: Electrical Data

    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 5.5. 5.5 Volumetric flow ranges Inch S401-S S401-M S401-H (mm) (m³/h) (m³/h) (m³/h) ½"...
  • Page 11 25 ... 11913.1 8" DN200 200.0 26 ... 8785.6 33 ... 17533.3 42 ... 21229.5 10" DN250 250.0 40 ... 13743.9 52 ... 27428.5 60 ... 33210.7 12" DN300 300.0 60 ... 19814.8 80 ... 39544.1 100 ... 47880.4 S401...

  • Page 12: Dimensional Drawing

    6 Dimensional drawing Dimensional drawing S401...

  • Page 13: Determining The Installation Point

    • 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 S401 permanently in wet environment as it exists usually right after a compressor outlet.

  • Page 14: Reserving Inlet And Outlet Sections

    The S401 sensors should be always installed upstream from obstacles like valves, filter, reductions etc. In common, sensors should be installed as far as possible away from any disturbances.
  • Page 15 8 Reserving inlet and outlet sections • 3 dimensional Bend • T-piece • Shut-off valve • Filter or similar (unknown objects) S401...

  • Page 16: Sensor Installation

    9.1 Installation requirements To install the sensor, a ball valve or a nozzle is needed. • The inner thread must be G 1/2”. • The diameter of the hole must be ≥ 13 mm, otherwise the shaft can not be inserted. S401...

  • Page 17: Installation Procedure

    ; OD is Outer Diameter of the pipe y=length of the ball valve Calculation example: A 2”-diameter pipe and an 87 mm- length ball valve: OD=60.3 mm 60.3 mm =30.15 mm y=87 mm ; Insertion depth = 30.15 mm +87 mm=117.15 mm S401...
  • Page 18 = length of the ball valve Calculation example: A 12”-diameter pipe with the wall thickness of 9 mm and a 87 mm- length ball valve. x=9 mm ; y=87 mm Insertion depth = 9 mm+ 87 mm+100 mm=196 mm S401...

  • Page 19: Installing The Sensor

    9. Tighten clamp sleeve with clamping torque 20 … 30 Nm. 10. During the final check control the installation depth again because sometimes the shaft is moved from its original position due the compressed air. S401...

  • Page 20: Removing The Sensor

    2. Release the clamp sleeve at the connection thread. 3. Pull out the shaft slowly until the value “10” can be read at the scale. 4. Close the ball valve. 5. Release the connection thread and unscrew the flow sensor. S401...

  • Page 21: Electrical Connection

    9 Sensor installation 9.3 Electrical connection The flow sensor is equipped with two Connector plugs “A” and “B”. The cables are connected to the sensor through the M12 connector. Connector plug A Connector plug B M12 Connection pins Connection pins S401...
  • Page 22 Positive supply voltage Modbus data - Positive 4 ... 20 mA signal M-Bus data Negative 4 ... 20 mA signal Not applicable Pulse output ATTENTION! Do not screw the M12 plug using force. Otherwise, it may damage the connecting pins. S401...

  • Page 23: 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. S401...
  • Page 24 10 Sensor signal outputs In case the flow rate is too high the S401 can not output the pulses with default settings (one pulse per consumption unit). For this the pulse can be set by our service software or a connected display to 1 pulse per 10 consumption units or 1 pulse per 100 consumption units.

  • Page 25: Pulse Connection Diagram

    10 Sensor signal outputs 10.2.1 Pulse connection diagram Variant 1: Variant 2: S401...

  • Page 26: Modbus Output

    Flow Direction Indication Remark • All numbers are in the little-endian format. • Function code: 03. • Different units have different resolutions. The measurement value is always available in the programmed physical • unit. Flow direction Flow direction indication Forward Reverse S401...

  • Page 27: Sensor Display (Option)

    During the next eight seconds the display will show the current software version and build the connection to the sensor. Now the display goes to the standard mode, showing the online values. Home page: • Status bar • Moving bar to indicate flow value • Measuring values S401...

  • Page 28: Configuration Using The Display

    2. Use the “Up” and “Down” key on the keyboard to choose the setting which should be changed. 3. Also use these two buttons to select desired entry box or adjust the values. 4. Please press “Enter” button to confirm the changes. S401...

  • Page 29: Service App S4C-Fs

    S4C-FS is an Android-based app that is designed to view online measurements and change settings for SUTO flow meters remotely. You can download S4C-FS from the Google Play Store or SUTO's website. To change settings, you need to scan the QR code on the calibration certificate using the app.

  • Page 30: Calibration

    16 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.
  • Page 31 • If the serial number has been changed, damaged or removed. Other claims, especially those for damage occurring outside the instrument are not included unless responsibility is legally binding. Warranty repairs do not extend the period of warranty. ATTENTION! Batteries have a reduced warranty time of 12 month. S401...

  • Page 32: Appendix A - Analogue Output

    0.840 700.00 107881.6 1798.03 1798027.1 29967.12 63496.8 128138.5 2135.64 35.59 0.840 800.00 140906.6 2348.44 2348443.6 39140.73 82934.5 167364.5 2789.41 46.49 0.840 900.00 178334.9 2972.25 2972248.9 49537.48 104964.0 211820.7 3530.35 58.84 0.840 1000.00 220166.6 3669.44 3669443.1 61157.38 129585.2 261507.1 4358.45 72.64 S401...
  • Page 33 60188.12 1003.14 16.72 400.00 70301.30 1171.69 1171688.40 19528.14 41377.80 83501.71 1391.70 23.19 500.00 109845.79 1830.76 1830763.12 30512.72 64652.81 130471.43 2174.52 36.24 600.00 158177.93 2636.30 2636298.89 43938.31 93100.05 187878.86 3131.31 52.19 700.00 215297.74 3588.30 3588295.71 59804.93 126719.51 255724.00 4262.07 71.03 S401...

  • Page 34: 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 S401...
  • Page 35 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 S401...

  • Page 36: Appendix C - Lrc And Crc Calculation

    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. S401...
  • Page 37 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. S401...
  • Page 38 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 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, S401...
  • Page 39 /* 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); S401...
  • Page 40 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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