Data Logger Comet H3431 Temperature and Humidity Regulator with RS485 Output

Comet H3431 Temperature and Humidity Regulator with RS485 Output

Humidistat, thermostat with two relay outputs. Outdoor, indoor use.

Relative humidity, temperature probe on a cable. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy. Three two-state inputs.

The device is supplied with T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally.

Humidistat is designed for two-state control of e.g. heating, ventilation, humidifier, dehumidifier, etc.

Transmitter is equipped with two relay outputs for alarm indication or control of external devices. Each relay can be assigned to any measured or computed value. For each relay setting of delay, hysteresis, audible alarm is enabled.

Measured temperature and relative humidity is recalculated to other humidity interpretations – dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy.

Parameters are easy adjustable from regulator keyboard or from the computer. Large dual line LCD for simultaneous display of temperature, relative humidity or other calculated humidity interpretation is an advantage.

State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitter is designed for use in non-aggressive environment.

Transmitter is also equipped with three binary inputs for detection of two-state events – e.g. water, smoke, glass break detection, door contact.

Applications

• temperature control
• monitoring of temperature and three binary signals at:
• building management and automation
• server rooms
• telecommunication devices
• warehouses, glasshouses
• manufacturers
• museums, archives, galleries
• air-conditioned rooms, HVAC

Software

• Comet Database
  • Complex solution for data acquisition and analysing. Easy to use and high flexible database software for Comet Transmitters and Regulators.
• Sensor RS485/232 utility
  • Allows communication of sensors with RS485/RS232 output and sending data to Comet Database.
• T-Sensor software
  • Free configuration utility for Comet Transmitters and Regulators.
• SensorReader software
  • Basic data acquisition utility for Comet Transmitters and Regulators. Software is free for download.
• Programmable regulators
  • with RS485 galvanic isolated serial interface are designed to measure temperature, relative humidity and barometric pressure of air in non-aggressive environment, to alarm indication and to control of external devices. Three galvanic no isolated binary inputs are intended for detection of binary signals. Regulators are available in wall – mount, duct – mount versions or with probe on a cable. Type H3431P is designed for measurement the temperature and relative humidity of compressed air.
• The function of two output relays
  • can be set from regulator keyboard (or from computer) and using the jumpers (see «Electrical wiring»). You can assign one of measured or computed value (dew point temperature, absolute humidity, specific humidity mixing ratio an d specific enthalpy) to ea ch relay. The s etting of delay, hysteresis and audible alarm is enabled for each relay. The status of output relays can be controlled remotely via RS485 link too. Devices are equipped with four button keyboard and two – line LCD display.
• Regulators support
  • Modbus RTU protocol and protocol compatible with standard Advantech-ADAM.