Humidity Instruments

SC805 is a high performance Temperature (RH+T) Transmitter and 2-wire Relative Humidity. Its relative humidity and temperature transmitter is available in surface mount, duct mount and remote sensor versions. Remote external sensors, SHT20, SHT30 (wall-mount) & SHT40 (duct-mount) may be placed as far as 25 meters from the unit. SC805 has a dual LCD display; the first line indicates relative humidity % and the second, the temperature in °C. The transmitter is accurate to 2% for relative humidity and within 0.3 °C for temperature. SC805 transmits two isolated 4-20 mA retransmission outputs to other devices such as a Programmable Logic Controller (PLC) or Solid-State Relay (SSR). SC805’s micro controller technology linearizes the input which makes control more effective. It is powered by a 4.5 - 32 V DC loop supply and has a loop drop of no more than 4.5V, which is remarkably low amongst such products. The RH+T transmitter is user programmable by a PC, connected via PCC82, a PC configurator by Radix.