eyc-tech THE120 Relative Humidity Sensor User Manual

: June 12, 2024
: eyc-tech

Table of Contents

Security considerations
Technical Data:
ustainable | Professional | Green
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

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:

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

Software and calibration operation step

Portable application:eYc-THE120-UI-20211020-1.0.0 (EXE)
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
Hardware connection: Connect the THE120 to PC through USB to RS-485 converter
Check the COM port number from Device Manager in Computer Management. e.g.
COML1 inillustration
Open the THE120 Ul
Goto function Interface
Click Config
Connection method – If known station number ID:
Setting COM PORT
Setting BAUD RATE
Setting DATA FRAME
Setting Station ID
Click Apply for connection
Connection Method-If unknown station number ID ( Scan R485):
Setting COM PORT, click Scan for scan devices
Choose the device and click Close and Export
Click Apply for connection
Setting on analog output
In Output tab, OUT1/OUT2 group, the output related setting could be found:
Quantity : Temperature, Relative Humidity
Response rate (0 … 100) 100 : Filter OFF » 90 : Filter =60 sec. » 80 : Filter =120 sec., etc.
Analogtype: 4…20 mA (Current) /0… 10V (Voltage)\
Measuring range: Upper and Lower
Setting Environment, Modbus Protocol
There are 2 groups in setting tab. The description of each item as below.
Environment :
Air Pressure (mBar)
Modbus Protocol :
Station ID
Baud Rate
Data Frame
Modbus Echo Test Enable / Disable
Modbus Echo Test Result Reset
Data display and logging
Device Information
Serial number
Model name
Firmware version
RS-485
Temperature range(°C)
Calibration date
Firmware checksum
Hardware version
Humidity calibration data
Temperature calibration data
Analog output calibration data
Analog output programming span

Inspection and maintenance

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.
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.