COMET T7311 – Temperature, Humidity, and Barometric Pressure with Cable Probe, RS232

COMET T7311 T+RH+Pressure Transmitter with RS232 Cable Probe 

The COMET T7311 is a robust industrial transmitter for simultaneous measurement of temperature, relative humidity, and barometric pressure, equipped with a remote combination probe on a 1-meter cable. This design allows flexible placement of the probe in difficult installation locations while keeping the electronics protected. The T7311 is specifically designed for continuous operation in building automation, production monitoring, warehouses, cleanrooms, laboratories, or meteorological stations.

In addition to the primary measured values, the T7311 automatically provides all key derived humidity parameters such as dew point, absolute humidity, specific humidity, mixing ratio, and specific enthalpy. The integrated barometric pressure sensor enables precise altitude correction and weather monitoring.

Via the RS232 interface with Modbus RTU protocol (and Advantech ADAM compatible), the T7311 can easily be integrated into any PLC, SCADA, or control system. The large dual-line LCD optionally displays temperature, humidity, pressure, or dew point and can be turned off for continuous operation.

The probe is rated for use up to +105 °C, the enclosure is IP65 protected, and the T7311 operates reliably from –30 to +80 °C while delivering stable readings for years.

Why the COMET T7311 is the ideal industrial solution:

• Remote probe on 1 m cable – flexible placement, up to +105 °C
• Three measured parameters: temperature + humidity + barometric pressure
• All humidity calculations integrated – dew point directly available
• RS232 Modbus RTU – easy automation integration
• Large dual-line display – switchable off
• IP65 enclosure – for harsh environments
• High accuracy: Temp. ±0.4 °C | Humidity ±2.5 %RH | Pressure ±1.3 hPa
• Free TSensor software for configuration
• 3-year warranty

Technical data:

• Probe temperature range: –30 to +105 °C (±0.4 °C)
• Relative humidity: 0 to 100 %RH (±2.5 %RH from 5–95 % at 23 °C)
• Barometric pressure: 600 to 1100 hPa (±1.3 hPa at 23 °C from 800–1100 hPa)
• Dew point: –60 to +80 °C (±1.5 °C at T<25 °C and RH>30 %)
• Resolution: 0.1 °C / 0.1 %RH / 0.1 hPa
• Probe cable length: 1 meter
• Communication: RS232, Modbus RTU, Advantech ADAM
• Power supply: 9–30 V DC
• Protection rating: IP65 (electronics)
• Operating temperature: –30 to +80 °C
• Warranty: 3 years

Perfect for:

• Building automation and HVAC systems
• Data centers and server rooms
• Cleanrooms and pharmaceutical production
• Food storage and cold rooms
• Museums, archives, and depositories
• Meteorological stations
• Production monitoring (drying processes)
• Difficult installations with cable probe

Flexible and easy installation

The housing is mounted to the wall with two screws, and the cable probe can be positioned exactly where the measurement is required. The self-clamping terminals make wiring quick and simple.

Summary:

• Temperature, humidity, and atmospheric pressure transmitter
• Suitable for indoor and outdoor applications
• Humidity and temperature sensor on cable
• The device also converts measured values into other humidity units: dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy
• Integrated pressure sensor
• The unit is supplied with a T+RH temperature and humidity probe with 1-meter cable.

Scope of delivery:

• T7311
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration