testo 6781 (Pressure dewpoint transmitter)

The new pressure dewpoint transmitter testo 6781 completes the product range for monitoring trace humidity in compressed air and enlarges the measurement range down to -90 °Ctd (see below graphic).
 

Overview of features and benefits:

• Pressure dewpoint measurement in the ISO Classes 1 (<-70 °Ctd) and 2 (<-40 °Ctd)
• Monitoring of adsorbtion dryers, granulate dryers and medical compressed air
• Quality assurance for noble gas preparation

Features und Benefits im Überblick

• New, extremely unaffected by condensation sensor system with Sol-Gel technology guarantees highest process safety and clearly faster responding behaviour compared to currently available metal oxide sensors
• Measurement of pressure dewpoints from -90...-20°Ctd
• Automatic self adjustment assures high accuracy and reliability
• Self-monitoring and early warning safeguard permanent plant availability
• External interface for parameterization, adjustment and analysis (P2A-Software) brings about time and cost saving in commissioning and maintenance

• Tendering document testo 6781 (PDF)
• Tendering document testo 6781 (RTF)

Now new: Integrate the testo 6781 into testo SaverisTM using the testo Saveris analog coupler   

• Integration of transmitters for all measurement parameters with standardized current and voltage interfaces, e. g. 4 to 20 mA, 0 to 10 V
• testo Saveris analog coupler available as a wireless or Ethernet version

On-site adjustment

The Testo transmitters are delivered ready to use. For professional application, the following functions are available via the easy-to-use software

• Parameterization of unit and scale
• Sensor adjustment (1-point) and adjustment of the analog outputs
• Parameterization and adjustment history of all activities of the
  P2A software are registered in the PC

An adjustment of the entire signal chain is possible directly at the measurement site thanks to the external interface. This saves time in commissioning and maintenance. In addition to this, complete parameter files can be stored in the PC. The parameterization of spare transmitters or similar measuring points is thus possible with minimal time expenditure.