Wireless current loop 4-20 mA transceiver

The Rpp 1.00 T transceiver is used to increase the range of the wireless current loop Rpp 1.00.

Destination

The wireless current loop 4-20 mA transceiver is designed to increase the Rpp 1.00 range. It consists of one receiver-transmitter module. The transmission takes place in the band, intended for Low Power Radio Devices (LPRD), without permits or fees. The device is delivered with a set value of operating frequency, baud rate and output RF power. These parameters can be changed at the recipient’s request in the intervals given in brackets in the technical data.

Facilities

It allows you to increase the signal level in cases too long distance between receiver and transmitter or the existence of obstacles that dampen the radio waves on this route.

Mode of action

The 4-20 mA loop transceiver is constantly in listen mode. The received data packet is immediately sent, followed by the transition to receive mode. The operating status is optically signaled. It works unaddressed, i.e. it receives and transmits data packets with any address but on the same channel. At the request of the recipient, a version with a specific address is possible.

Wireless current loop 4-20 mA transceiver

The operating parameters are subject to the standards of the European Telecommunications Standards Institute ETSI and are listed in ETSI EN 300-220-2.

Technical data

♦ Operating frequency: 868.29388 (868.0 ÷ 868.6) MHz 
♦ Modulation type: GFSK 
♦ Output RF power: +10 (-10 ÷ +10) dBm 
♦ Receiver sensitivity: -110 dBm 
♦ Range: 300m in open area 
♦ Baud rate: 1.2 (1.2 ÷ 500) kbps 
♦ Antenna: internal, right angle 
♦ Power supply: 24 V DC ± 5 % external 
♦ Power consumption:: 0,055A@24 V max. 
♦ Housing: 82×80×55 ( W × H × D ), wall mounted, IP65 
♦ Terminals: cable entry Pg7, IP68, outer diameter of the wire 3.0 ÷ 4.0 mm, core diameter max. 0.75 mm² 
♦ Operating environment: - temperature -20 ÷ +55 °C (-4 ÷ 131 °F )
                         - humidity: < 95 %, non condensing