eyc-tech THE120 Relative Humidity Sensor User Manual

eyc-tech THE120 Relative Humidity Sensor User Manual

Security considerations

Please read this Specification carefully, prior to use of this, and keep the manual properly, for timely reference.
Solemn Statement :
This product cannot be used for any explosion-proof area.
Do not use this product in a situation where human life may be affected.
eYc-tech will not bear any responsibility for the results produced by the operators !

Warning!

• Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.
• This product must be operated under the operating conditions specified in manual to prevent equipment damages.
• Please using the product under the ordinary pressure, or it will influence safe problem.
• This product must be operated under the operating condition specified in this manual to prevent equipment damages.
• This product must be operated under the normally atmospheric condition to prevent equipment damages.
• To prevent products damage, always disconnect the power supply from the product before performing any wiring and installation.
• All wiring must comply with local codes of indoor wiring and electrical installation rules.
• Please use crimp type terminal.
• To prevent personal injury, do not touch the moving part of product in operation.

It may cause high humidity atmosphere during the product was breakdown. Please take safety strategy.

Connection Diagram

RS-485 and Modbus
THE120 integrate a RS-485 interface for digital communication as an option feature. Based on Modbus protocol makes the general convenience on PLC, HMI and PC connection. For Modbus protocol information please download the file from website. Besides the PLC, HMI application, the user software provide the device setting and data logging function, it also can free download from website.

Technical Data:

1. Max. Network size: 32 transmitters
2. Communication: with COM-Port (serial interface) of PC
3. Max. Network expansion: 1200m (3937ft) total length at 9600 baud
4. Transmission rate: 9600, 19200, 38400, 57600, 115200 Baud
5. Parity: None, Even, Odd
6. Data length: 8 bit
7. Stop bit: 1 or 2 bit
8. Factory default Station address = 1, Data format= 9600, N81

Software and calibration operation step

1. Portable application:eYc-THE120-UI-20211020-1.0.0 (EXE)

2. Installation program: eYc-THE120-U1-20211020-1.0.0 (INSTALLER).rar
   (3% Please contact us to download installation program when free program doesn’t execute. )
   a. Operating System requirements: above Windows XP SP2
   b. Decompress installation program and click Setup to install
   
   c. Navigate to program and click THE120
   

3. Hardware connection: Connect the THE120 to PC through USB to RS-485 converter

4. Check the COM port number from Device Manager in Computer Management. e.g.
   COML1 inillustration
   

5. Open the THE120 Ul

6.  Goto function Interface

7. Click Config
   

8. Connection method – If known station number ID:

9. Setting COM PORT

10. Setting BAUD RATE

11. Setting DATA FRAME

12. Setting Station ID

13. Click Apply for connection
    

14. Connection Method-If unknown station number ID ( Scan R485):

15. Setting COM PORT, click Scan for scan devices

16. Choose the device and click Close and Export

17. Click Apply for connection
    

18. Setting on analog output
    In Output tab, OUT1/OUT2 group, the output related setting could be found:

19. Quantity : Temperature, Relative Humidity

20. Response rate (0 … 100) 100 : Filter OFF » 90 : Filter =60 sec. » 80 : Filter =120 sec., etc.

21. Analogtype: 4…20 mA (Current) /0… 10V (Voltage)\

22. Measuring range: Upper and Lower
    

23. Setting Environment, Modbus Protocol
    There are 2 groups in setting tab. The description of each item as below.
    Environment :

24. Air Pressure (mBar)
    Modbus Protocol :
    

25. Station ID

26. Baud Rate

27. Data Frame

28. Modbus Echo Test Enable / Disable

29. Modbus Echo Test Result Reset

30. Data display and logging
    
    

31. Device Information
    

32. Serial number

33. Model name

34. Firmware version

35. RS-485

36. Temperature range(°C)

37. Calibration date

38. Firmware checksum

39. Hardware version

40. Humidity calibration data

41. Temperature calibration data

42. Analog output calibration data

43. Analog output programming span

Inspection and maintenance

1. Maintenance
   Since this product is inspected and calibrated for high accuracy at the factory
   before shipment, no calibration on the installation site is necessary when this product is
   installed. For inspection and maintenance follow the instructions below :

   • Periodic inspection Periodically inspect this product for its sensing accuracy, and clean the cover. Set the period between inspections based on atmospheric dust and other contaminants in the installation environment.

2. Troubleshooting

   • Sensor maintenance
     Do not damage sensor surface during the maintenance process.

   • Troubleshooting
     If any problem occurs during operation, refer to the table below for appropriate solutions.

• No output
• Unstable output

|

• Disconnected wiring
• Loose wiring
• Power supply voltage
• Sensor damages

|

• Re-perform wiring

• Crew on terminal tightly or replace wires

• Replace the sensor

• Slow response to output

• Errow in output

|

• Moisture condensation onthe product
• Check installed location
• Check installed angle
• Check dust and contamination on the sensor

|

• Remove the sensor and filter. Dry power-off state sensor in clean air seasoning
• Refer to the section ® Align measurement head with flow direction
• Cleaning the filter
• Changing the filter
• Calibrate
• Replace the sensor

ustainable | Professional | Green

Temperature & Humidity / Dew Point / Air Velocity & Volume / Flow
Differential Pressure / Air Quality
Measuring Specialist

Tel : 886-2-8221-2958
Web : www.eyc-tech.com
e-mail : info@eyc-tech.com
www.eyc-tech.com

References

• eyc-tech｜Taiwan measurement specialist, sensor manufacturer

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