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Summary of Contents for SUTO S402
- Page 1 English Instruction and operation manual S402 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.
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Page 3: Table Of Contents
10.1 Analog output..............23 10.2 Pulse output...............23 10.2.1 Pulse connection diagram..........25 10.3 Modbus output..............26 10.3.1 Modbus settings registers..........26 10.3.2 Values registers............27 11 Service App S4C-FS..............28 12 Calibration................29 13 Maintenance................29 14 Disposal or waste..............29 15 Appendix A - Modbus communication example......30 S402... -
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. S402... - 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 sensor probe tip. • Avoid condensation on the sensor element because this will affect accuracy enormously. S402...
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Page 6: Registered Trademarks
• Avoid direct UV and solar radiation during storage. • For the storage the humidity must be <90%, no condensation. 2 Registered trademarks SUTO ® Registered trademark of SUTO iTEC MODBUS ® Registered trademark of the Modbus Organization, Hopkinton, USA HART ®... -
Page 7: Rf Exposure Information And Statement
• 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. S402... -
Page 8: Application
4 Application 4 Application The S402 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 chapter 6 Technical data The S402 can measure the following values: •... -
Page 9: Technical Data
6 Technical data 6 Technical data 6.1 General FCC ID：2ASK2-SUTO-005 Parameters Standard unit flow: m Other units: m /min, l/min, l/s, cfm, kg/h, kg/min, kg/s Consumption units: m , ft , kg Reference conditions ISO1217 20°C 1000 mbar (Standard-Unit) DIN1343 0°C 1013.25 mbar (Norm-Unit) -
Page 10: Output-Signals
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. S402... -
Page 11: Volumetric Flow Ranges
6 Technical data 6.5 Volumetric flow ranges The measuring ranges are stated under the following conditions: • Standard flow in air • Reference pressure: 1000 hPa • Reference temperature: 20°C Inch Inner S402-S S402-M diameter (m³/h) (m³/h) (mm) 1" DN25 27.3... -
Page 12: Dimensional Drawing
7 Dimensional drawing 7 Dimensional drawing S402... -
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 S402 permanently in wet environment, which exists usually right after a compressor outlet. -
Page 14: Reserving The Inlet And Outlet Sections
The thermal measuring principle may be sensible to inlet and outlet conditions. We recommend the following minimum straight inlet and outlet sections to ensure an accurate measurement. The S402 should be always installed upstream from obstacles like valves, filter, reductions etc. In common, the sensor should be installed as far as possible away from any disturbances. - Page 15 8 Determining the installation point • 3 dimensional bend • T-piece • Shut-off valve • Filter or similar (unknown objects) S402...
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Page 16: Installing The Sensor
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 cannot be inserted. S402... -
Page 17: Installation
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 S402... - Page 18 = wall thickness of pipe y = length of the ball valve Calculation example: A 12”-diameter pipe with the wall thickness of 9 mm An 87 mm-long ball valve x=9 mm ; y=87 mm Insertion depth = 9 mm+ 87 mm+100 mm=196 mm S402...
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Page 19: Installing The Sensor
7. Tighten the locking nut by hand so that the flow sensor cannot be moved by the pressure in the pipe. NOTE: The locking nut is a hex nut with the adjacent edge angle of 60 degrees. See the figure on the next page. S402... - Page 20 120 degrees clockwise. NOTE: If there is still gas leakage after the above steps, use a wrench to continue to turn the locking nut clockwise by 30 degrees. S402...
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Page 21: Removing The Sensor
4. Close the ball valve. 5. Release the connection thread and unscrew the flow sensor. 9.3 Electrical connection The S402 flow sensor provides an M12 connector, which has 5-pin or 6- pin depending on the output signal type you choose. Remark: For the 5-pin M12 version, the delivery package is supplied with a 5- pore M12 connector by default;... - Page 22 Positive supply voltage Modbus data - Positive 4 ... 20 mA signal MBus 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. S402...
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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. S402... - Page 24 10 Sensor signal outputs In case that the flow rate is too high and the S402 cannot output pulses with the default settings (one pulse per one consumption unit), use our mobile service app S4C-FS to set the pulse output to 1 pulse per 10 consumption units or 1 pulse per 100 consumption units.
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Page 25: Pulse Connection Diagram
10 Sensor signal outputs 10.2.1 Pulse connection diagram The pulse connections for 6-pin M12 connector are shown below. The pulse connection for 5-pin M12 connector is shown below. S402... -
Page 26: Modbus Output
Byte order Byte sequencing (HEX) Example MID-LITTLE-ENDIAN A B C D 0x 0A 11 42 C5 (Read from the device) LITTLE-ENDIAN B A D C 0x 11 0A C5 42 BIG-ENDIAN C D A B 0x 42 C5 0A 11 S402... -
Page 27: Values Registers
Consumption in ltr 1287 1286 UInt32 Consumption in Nltr 1293 1292 UInt32 Consumption in cf 1299 1298 UInt32 Consumption in Ncf 1305 1304 UInt32 Consumption in kg 1347 1346 Float Velocity in m/s 1355 1354 Float Velocity in Nm/s S402... -
Page 28: Service App S4C-Fs
11 Service App S4C-FS S4C-FS is an Android-based mobile app that enables you to remotely view online measurements and change settings for SUTO flow meters. Download S4C-FS from the Google Play Store or SUTO website. To change settings, you need to scan the QR code on the calibration certificate using the app. -
Page 29: Calibration
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. S402... -
Page 30: Appendix A - 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 S402... - Page 31 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 S402...
- Page 32 SUTO iTEC GmbH SUTO iTEC (ASIA) Co., Ltd. Grißheimer Weg 21 Room 10, 6/F, Block B, Cambridge Plaza D-79423 Heitersheim 188 San Wan Road, Sheung Shui, N.T. Germany Hong Kong Tel: +49 (0) 7634 50488 00 Tel: +852 2328 9782...
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