Industrial Humidity / Temperature Transmitters

industrial humidity sensor

 

Technical Inquiries

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JLC International is a distributer of many different types of transmitters for varying industries. Working closely with renowned manufacturers, only the best, most reliable transmitters and industrial humidity sensors are offered.

Air is a mixture of different gases. Under normal environmental conditions, the gases have an ideal behavior; i.e. each gas molecule can act independently from all others. In that case, Dalton’s law is valid, which states:

  • Each gas in a mixture of gases exerts a pressure, known as its partial pressure, which is equal to the pressure the gas would exert if it were the only gas present.
  • The total pressure of the mixture is the sum of the partial pressures of all the gases present.

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Water in its gaseous phase (water vapor) is also a component of air mixture, and under normal conditions, behaves like an ideal gas. The concentration of water vapor in air is limited: the saturation vapor pressure. There is a maximum partial pressure of vapor, which depends on temperature. Air, when it is at high temperatures, can take more vapor than it can at low temperatures. Relative humidity (RH) is defined as the ratio between the actual partial vapor pressure and the saturation vapor pressure above water.

In many industrial applications, it is necessary to measure the relative humidity and temperature with humidity transmitters or, in special demanding cases, with a high temperature humidity sensor. Many production and manufacturing processes are dependent on the right humidity and temperature; pharmaceutical and chemical products wouldn’t exist if the humidity and temperature were not strictly controlled.

Humidity transmitters are available with many different qualities; however, common features are:

  • Robust and sturdy enclosure with at least protection class IP65 (NEMA4X)
  • Stainless steel probes with a choice of filters
  • Analogue and digital outputs
  • The capability to calculate other values, such as, absolute humidity, dewpoint, temperature, enthalpy, etc.

For applications of up to 180 °C (365 °F), humidity transmitters should be equipped with a high-temperature industrial humidity sensor.

The series EE23, EE310, and EE33 are industrial transmitters that are meant to measure humidity and temperature under demanding environmental and process-related conditions. The latter two can be equipped with a high-temperature industrial humidity sensor.

The EE300Ex belongs to the same line of these industrial transmitters, but is specifically designed for use in intrinsically safe applications.

Due to their excellent reliability and long-term stability under normal operation conditions, the E+E Elektronik relative humidity and temperature transmitters do not require any maintenance. For use in a high-polluted environment, the filter cap should be periodically exchanged with a new, original one. For high-accuracy requirements under extreme humidity and temperature working conditions, the transmitters can be periodically re calibrated.

For further questions regarding humidity sensors or industrial transmitters, please contact us by calling: 1-888-358-2518. Our experts at JLC International are more than willing to help with the selection process to meet all of your needs.

Please note: Manual data files can be quite large, please be patient while downloading.
The manuals are for information purposes only and shouldn’t be used for operating the instrument.



 

High-End Industrial Humidity / Temperature Transmitters
High Humidity and Chemical Applications …… Series EE33

EE32_33_E_I-small

 

 

Specifications

  • Working range: 0 – 100 %RH
  • Temperature range: -40 to +180 °C (-40 to 356 °F)
  • Standard metal housing – several remote versions
  • Unique monolithic measuring cell
  • Measurement near condensation (separate T-probe)
  • Purge of chemical contamination
  • Full temperature compensation
  • Pressure tight version up 100 bar (1450 psi)
  • Alarm output and local display optional
  • Remote sensor probe up to 10 m (33 feet)
  • Two analogue outputs free selectable and scalable
  • RS 232 interface for configuration
  • Dew point, absolute humidity and other calculated values
  • Data output via RS232 serial interface
  • RS485 and Ethernet network capability
  • Calibrated against NIST traceable factory standards


 

Multifunctional Industrial Humidity / Temperature Transmitters
Humidity / Dewpoint / Wet Bulb / Mixing Ratio …… Series EE310

 

 

Specifications

  • Working range: 0 – 100 %RH
  • Temperature range: -40 to +180 °C (-40 to 356 °F)
  • Housing: Polycarbonate – wall, duct and remote probe versions
  • Full temperature compensation
  • Pressure tight version up 20 bar (300 psi)
  • Alarm output and local display optional
  • Optional display with integrated data logger
  • Interchangeable and remote sensor probe up to 10 m (33 feet)
  • Two analogue outputs free selectable and scalable
  • USB interface for configuration and downloading data from logger
  • Dew point, absolute humidity and other calculated values
  • Real time data output via RS485 serial interface
  • Modbus RTU protocoll optional
  • Calibrated against NIST traceable factory standards


 

Economical Industrial Humidity / Temperature Transmitters
Dew and Frost Point Temperature …… Series EE23

EE23_C_Metall-small

 

 

 

Specifications

  • Working range: 0 – 100 %RH
  • Temperature range: -40 to +120 °C (-40 to 248 °F)
  • Housing: Metal or Polycarbonate – duct and remote probe versions
  • Dewpoint and frost point temperature calculation
  • Two point humidity and temperature calibration
  • Remote sensor probe up to 20 m (65 feet)
  • Alarm output and local display optional
  • Version with 5 mm (0.2 inch) remote probe
  • Calibrated against NIST traceable factory standards


 

Digital Industrial Humidity / Temperature Transmitters 
Interchangeable Probes …… Series EE220

EE22_Metall_small  

Specifications

  • Working range: 0 – 100 %RH
  • Working Temperature range: -40 to +80 °C (-40 to 176 °F)
  • Housing: Metal or Polycarbonate
  • Several analogue outputs
  • Alarm output and local display optional
  • Interchangeable probes without recalibration
  • Remote sensor probe up to 10 m (32 feet)
  • Clean room wall mount version with rear cable entry
  • Calibration data stored in sensor probes
  • On site calibration with fixed reference probes
  • Several types of RH / T and T only probes available
  • Calibrated against NIST traceable factory standards


 

Industrial Humidity / Temperature Transmitters
Intrinsically Safe Applications …… Series EE300Ex-HT / EE300Ex-xT

EE300Ex_small ATEX-EX_small

Specifications

EE300Ex-HT HUMIDITY / TEMPERATURE

  • Working range: 0 – 100 %RH
  • Temperature range: -40 to +180 °C (-40 to 356 °F)
  • IS – ATEX and FM approvals
  • Two outputs selectable and scalable – 2 wire loop-powered 4 – 20 mA
  • Pressure tight version up 300 bar (4350 psi)
  • Remote sensor probe up to 10 m (32 feet)
  • RS 232 interface for configuration
  • Dew point, absolute humidity and other calculated values
  • Data output via RS232 serial interface
  • Optional local display
  • For gas and dust explosion hazardous areas
  • Direct mounting in zone 0 / 20
  • Moisture in Oil measurement!
  • Calibrated against NIST traceable factory standards

EE300Ex-xT TEMPERATURE

  • Temperature range: -70 to 200 °C (-94 to 392 °F)
  • IS – ATEX and FM approvals
  • Output selectable and scalable – 2 wire loop-powered 4 – 20 mA
  • Pressure tight version up 20 bar (290 psi)
  • Remote sensor probes up to 10 m (32 feet)
  • RS 232 interface for configuration
  • Data output via RS232 serial interface
  • Optional local display
  • Calibrated against NIST traceable factory standards

pdf  Data Sheet Accessories & Filter Caps
pdf  Manual Radiationshield
pdf  IP / NEMA – A Comparison
pdf  Measuring Humidity – Basic
pdf  Humidity Calibration – Basic
pdf  Humidity Sensor Elements
pdf  RS232 / RS485 Industrial Transmitter Protocol

zipE+E Configuration Software

 

Please note: Manual data files can be quite large, please be patient while downloading.
The manuals are for information purposes only and shouldn’t be used for operating the instrument