Wireless Current Loop Rpp 1.00

Destination

This device consist with transmitter and receiver. The 4-20 mA current-loop signal is measured and averaged by transmitter and sent to receiver every 30s. The continous current signal is on receiver output.
It is LPRD ( Low Power Radio Device ) used frequency band without permission and tax.
Data packed are addressed and CRC controlled.
Devices are delivered with fix frequency, RF power, data rate and packet address. They can be changed for individual request.

Technical data:

Frequency: 868,29238 ( 868,0 ÷ 868,6 ) MHz
Modulation: GFSK
Output RF power: +10 ( -10 ÷ +10 ) dBm
Receiver sensivity: -110 dBm
Operating distance: 300m, open air
Refreshing: 30 s, average value
Transmision rate: 1,2 ( 1,2 ÷ 500 ) kbps
Activity: 0,03%
Antenna: internal
Input/output signal current: 0 ÷ 20 mA
Accuracy: 0,25% in range 4 ÷ 20 mA
Transmitter input resistance: 115 ÷ 135 Ω
Receiver load resistance: 750 Ω max.
Power requirements: 24 V DC ±5 %
Power consumption: transmitter 0,055A@24V max., receiver 0,065A@24V max.
Operating temperature: -20 ÷ +55 °C (-4 ÷ 131 °F )
Humidity: < 95%, non condensing
Housing: 82x80x55 ( W x H x D ), wall mouting, IP65
Cable terminal: 4 x 0,75mm²