USER GUIDE FOR WIRELESS SENSOR TRANSMITTER WS433-M12F

WS433-M12F-MN-EN-01

Item Code

  • ATE-11 or ATE-12-Digital ambient temperature sensor 

  • ATH-11 or ATH-12-Digital ambient humidity / temperature sensor 

  • ADP-Digital ambient differential pressure sensor

Specification

  • Sensor modules support

    • Compatible with all DULP sensor modules produced by Daviteq. Refer to the sensor table in the first page. List of compatible sensor modules depends on FW version of WS433-M12F(-T). ** DULP (Digital Ultra Low Power)

  • Sensor port connector

    • M12-female, 4-pin A-coding

  • Data speed

    • Up to 50kbps

  • Tranmission distance, LOS

    • 500m

  • AntennaInternal

    • AntennaBattery01 x AA 1.5 - 3.6VDC, up to 10-year operation, depends on configuration

  • Frequency Band

    • ISM 433Mhz, Sub-GHz technology from Texas Instrument, USA

  • Receiving Sensitivity

    • -110dBm at 50kbps

  • International Compliance

    • ETSI EN 300 220, EN 303 204 (Europe) FCC CFR47 Part15 (US), ARIB STD-T108 (Japan)

  • Security Standard

    • AES-128

  • Operating temperature of PCB

    • -40oC..+60oC (with AA L91 Energizer)

  • Housing

    • Poly-carbonate, IP67

  • Installation method

    • L-type bracket SUS304 , by M4 screws or double-sided 3M tape (included)

  • Product dimensions

    • 125x30x30mmNet weight (without battery)< 60g

  • Box dimension

    • 190x50x50mm

  • Gross weight

    • 100g

Modbus Register Mappings

Process of measurement

When the sensor sampling time interval is reached, for example 2 minutes, the node will wake up and switch ON the power supply to supply the energy to external sensor to start the measurement. Depends on the type and characteristic of external sensor, the sensor will take a certain time to finish the measurement.

For example, the measurement time is 200mS, after this time, the node will read the value of sensor using I2C, node will switch OFF power supply to external sensor to save energy.

Once reading the sensor value, the raw data is X, it can be scaled to any engineering value by the following formula:

Y = aX + b

Where

  • X: the raw value from sensor

  • Y: the calculated value for parameter 1's value or parameter 2's value

  • a: constant (default value is 1)

  • b: constant (default value is 0)

So, if there is no user setting for a and b ==> Y = X

The Y value will be compared with Lo and Hi threshold.