Smartphone app for air and gas flow meter (20 pages)
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.
• 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...
• 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...
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.
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...
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...
* 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...
• 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.
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.
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.
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...
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...
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.
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.
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...
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...
(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.
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...
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...
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...
Need help?
Do you have a question about the S418 and is the answer not in the manual?
Questions and answers