RS485 Humi /Temperature sensor

By hw-group

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Categories: Sensors

HTemp-485 Box2

HTemp-485 Box2 measures temperature and humidity, communicates over 4-wire bus and up to 26 sensors can be connected parallely to a single bus. The sensor is intended for indoor vertical wall mounting.

The busbar uses 4 wires, two with a standard RS-485 line, the other two are used for sensors' power supply. The individual sensors can be powered by an external power source and can be connected by just two RS-485 line wires. RS-485 communication line works up to 1000m distance.

For temperature measuring the thermal sensor uses an integrated element with accuracy of ±0.8°C, humidity is as well measured by an internal sensor with accuracy 5%.

http://www.hw-group.com

Application

  • Extensive measuring systems with many measuring points
  • Air-conditioning state measuring and measuring of living conditions in intelligent buildings
  • Independent measuring in food warehouses and agricultural crops storage buildings
  • Grocery storehouses and premises
  • Temperature and humidity monitoring in pharmaceutical storages
  • Measuring in residential premises
  • Industrial measuring and regulation
  • Poseidon model 2250 – temperature values transmission over Ethernet or Internet
  • Poseidon model 2250 – logging possibility of up to 100 000 values into internal Flash memory

 

 

Features

  • Temperature measuring within the range of -10°C to +70°C
  • Measuring the relative humidity within the range of 0% to 100%.
  • Up to 25 sensors connected parallely at one bus
  • Communication and sensor state indication
  • Communication over the RS-485 line (up to 1 000 m distance), simple communication protocol
  • Minimal power consumption, possible power supply by unstabilized voltage
  • The sensor by itself can send a temperature value according to preset time interval, which can be from 1 to 5000 seconds (circa 1 hour and 23 minutes)
  • The sensor address on RS-485 bus can be set by jumpers inside the sensor as well
  • Easy wall mounting
  • The sensor cooperates with Poseidon thermometer
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