Transmitter - WUNTRONIC - #1

http://www.wuntronic.de

e-mail: WUNTRONIC@wuntronic.de

ssures

with RS232 or RS485 Interface

Series Txxx

Measured temperature, barometric pressure, relative humidity, dew point temperature, absolute humidity, specific humidity, mix­ing ratio or specific enthalpy is converted to digital serial output with the RS485 or RS232 link parameters. The RS485 transmitter circuitry is galvanically isolated from power circuitry to prevent collision in RS485 network.

Large dual line LCD for display of temperature, humidity, pressure or other calculated humidity interpretation is an advantage. Com­puterized design ensures maximum long term stability and fail indication. The transmitter works with ModBus RTU communica­tion protocol or with Advantech ADAM compatible protocol. Proto­col is user selectable in special configuration mode by means of the PC. Serial link enables to read actual readings and modify transmitter configuration. Instrument works always in slave mode, i.e. responds only to master device query. Transmitters have the address space available from 1 to 255.

The Tx31x RS232 transmitters can be powered directly from the COM port of the PC or from external ac/dc adapter.

State-of-the-art capacitive polymer humidity sensor excels in me­chanical stress, temperature shock, dew resistance as well as in large linearity range and low hysteresis. Transmitters are designed for use in non-aggressive environment.

•

Supported temperature units:...........................................................................................................................................degrees Celsius, degrees Fahrenheit

Temperature sensor: .........................................................................................................................................................................RTD Pt1000-3850ppm/°C

Operating temperature range of the case with electronics:...............................................-30 to +80°C, recommended to switch OFF LCD display over +70°C

Accuracy: .........................................................................................................................................................................................................................±0.4°C

Measuring relative humidity range:..............................................................................................................................................................................0 to 100%

Accuracy: ................................................................................................................................................................................±2.5% RH from 5 to 95% at 23°C

Accuracy and range of dew point temperature output:.............................................±1,5°C at ambient temperature T<25°C and RH>30% range -60 to +80 °C

Accuracy and range of absolute humidity output:.......................................................................±3g/m3 at ambient temperature T < 40°C range 0 to 400 g/m3

Accuracy and range of specific humidity output:............................................................................±2g/kg at ambient temperature T < 35°Crange 0 to 550 g/kg

Accuracy and range of mixing ratio output:....................................................................................±2g/kg at ambient temperature T < 35°Crange 0 to 995 g/kg

Accuracy and range of specific enthalpy output: ......................................................................±3kJ/kg at ambient temperature T < 25°C range: 0 to 995 kJ/kg

Accuracy and range of barometric pressure output:.....................................................................................................± 1.3hPa at 23°C range: 600 to 1100hPa

Supported pressure units:............................................................................................................................hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in^A2

Temperature compensation of the humidity sensor: ....................................................................................................................................from -30 to +125°C

Power: ..................................................................................................................................................................................................................9 to 30 V DC,

power consumption with RS485..................................................................................................................................................................approximately 0.5W,

current consumption with RS232..................................................................................................................................................................approximately 6mA

Protection - temperature and humidity transmitters:.....................................................IP65 electronics with terminals, IP40 humidity and temperature sensors

Protection - transmitters measuring pressure:.............................................................IP54 electronics with terminals, IP40 humidity and temperature sensors

Filtering ability of sensor cover:.................................................................................................................................0.025mm - filter from stainless steel mesh

Communication protocol: ...................................................................................................................ModBus RTU and Advantech ADAM compatible protocol

Communication speed: ...................................................................................................................................................................................110 to 115200 Bd

Warranty: ....................................................................................................................................................................................................................two years