COMET SYSTEM, s.r.o.
Bezrucova 2901
756 61  Roznov pod Radhostem
CZECH REPUBLIC
Tel.: +420 571 653 990

E-mail: info@cometsystem.com


 

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T3419P Compressed air RH+T transmitter with RS485 output

code: T3419P
Humidity, temperature transmitter. T+RH probe from hard anodized duralumin for compressed air up to 25 bars on the cable. Outdoor, indoor use.

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.

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

Included in delivery:


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Features

Programmable temperature and humidity transmitter is equipped with temperature and relative humidity sensors. Measured values are also converted to other humidity interpretation - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy. Degrees Celsius and Fahrenheit are user selectable. Transmitter contains a microprocessor based control circuitry in a durable plastic case with connection terminals and sensors in a probe on a cable. Sensors are protected with filter with stainless steel mesh. Large dual line LCD for simultaneous display of T+RH or other humidity interpretation is an advantage. Display is possible to switch off. Computerized design ensures temperature compensation of the humidity sensor and fail indication. State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitters are designed for use in non-aggressive environment.

T+RH probe from hard anodized duralumin with 1m cable. Cable lengths 2m or 4m available optionally. 
  

APPLICATIONS - measuring and control of air humidity at:

  • building HVAC management
  • building HVAC automation
  • warehouses
  • glasshouses
  • manufacturers
  • museums, archives, galleries
  • air-conditioned rooms
  • weather stations

Measured pressure values are converted to RS485 serial output. Transmitter circuitry is galvanically isolated from power circuitry to prevent collision in RS485 network.

Serial output RS485 - transmitter works with ModBus RTU communication protocol or with Advantech ADAM compatible protocol. Protocol is user selectable in special configuration mode by means of the PC. Serial link enables to read actual readings and modify transmitter configuration. Instrument works always in slave mode, i.e. responds only to master device query. Transmitters have the address space available from 1 to 255. Communication speed is 110 to 115200Bd.

SOFTWARE:

  • Comet Database
    Complex solution for data acquisition and analysing. Easy to use and high flexible database software for Comet Transmitters and Regulators.


  • 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.

  Online Monitoring system with RS485/232 sensors

 Relative humidity range
Figure: Relative humidity operating range

Technical Data

Technical parameters Value
Output RS485
Measured Value Temperature + Relative Humidity
Construction Type Compressed Air Humidity up to 2.5MPa
Design Industrial
Temperature Measuring Range -30 to 105 °C
Relay Output No
Two-State Input No
Lcd Display Yes
PoE No
Relative humidity range 0 to 100%
Accuracy of relative humidity measurement ±2.5% relative humidity from 5 to 95% at 23°C
Accuracy of temperature output ±0.4°C from -30 to +100°C
±0.4% from reading over +100°C
Available temperature units degrees Celsius, Fahrenheit
Dew point temperature range -60 to +80 °C
Accuracy of dew point temperature output (for more details see instruction manual) ±1.5°C for dew point temperature +10°C and higher at ambient temperature +25°C
Accuracy of dew point temperature output ±2.0°C for dew point temperature 0°C at ambient temperature +25°C
Accuracy of dew point temperature output ±3.0°C for dew point temperature -10°C at ambient temperature +25°C
Accuracy of dew point temperature output ±6.0°C for dew point temperature -20°C at ambient temperature +25°C
Accuracy and range of absolute humidity output ±1.5g/m3 at ambient temperature T < 25°C
range 0 to 400 g/m3
Accuracy and range of specific humidity output ±2g/kg at ambient temperature T < 35°C
range 0 to 550 g/kg
Accuracy and range of mixing ratio output ±2g/kg at ambient temperature T < 35°C
range 0 to 995 g/kg
Accuracy and range of specific enthalpy output ±3kJ/kg at ambient temperature T < 25°C
range: 0 to 995 kJ/kg
Temperature operating range of case with electronics -30 to +80°C
Temperature operating range of LCD display readable to operating temperature +70°C, it is recommended to switch OFF the LCD over +70°C
Range of humidity sensor temperature compensation all temperature range
Communication protocol ModBus RTU, ARION and Advantech ADAM compatible protocol
Communication speed 110 to 115200 Bd
Filtering ability of sensor cover 0.025mm - filter with stainless steel mesh
Protection of the case with electronics IP65 electronics, IP40 sensors
Power 9-30Vdc, current consumption approximately 0.5W
Mechanical connection of probe G1/2 with O-Ring
Length of the probe cable 1m, 2m or 4m optionally
Dimensions display unit 88.5 x 114 x 39.5 mm (W x H x D), probe length 150 mm, probe diameter 18mm
Weight approximately 260g - 1m probe
Warranty 3 years