Servomex - a Spectris Company

- Model DF-745 - DF High Purity Gas Analyzers



Tunable Diode Laser (TDL) trace/ultra-trace moisture measurements for ultra high purity electronic gas checks. The DF-745 provides trace and ultra-trace moisture contaminant measurements for LED/LCD manufacturing processes. Able to monitor multiple background gases, the DF-745 delivers exceptional performance operational flexibility in a compact unit.

With an intelligent and robust hardware/software design, this analyzer can be moved easily from port to port, virtually eliminating dry down times often associated with these applications. 

Offering a Lower Detection Limit (LDL) of 1ppb, the DF-745 uses industry-leading Tunable Diode Laser (TDL) sensing technology. This sensor delivers ultra-reliable baseline measurements and a fast speed of response; with a robust Herriot cell preventing loss in mirror reflectivity, moisture contact with optical components is minimized, ensuring an accurate measurement. Added to its flexibility and accuracy is affordability; zero drift extends calibration intervals while minimal ongoing maintenance provides a low cost of lifetime ownership.

  • Trace level Tunable Diode Laser (TDL) sensing provides high stability measurements 
  • Broad detection range: 0ppb – 20ppm 
  • Operable via front panel or digital communication options 
Easy to use
  • Simplified ongoing maintenance requirements with no consumables required 
  • High reliability; repeatable baseline measurements are not affected by a loss in mirror reflectivity 
  • Compact with a low weight; moves easily from port to port and ideal for other mobile applications 
Low cost of ownership
  • Maintenance periods can be extended by the use of patented ultra-stable TDL sensing technology 
  • Zero drift reduces calibration requirements 
Unrivalled performance
  • Uses industry-leading, high stability TDL sensing technology 
  • Analysis immune from gas cell concentration: DF-745 operates to specification with up to 90% signal loss 
  • LDL reference 1ppb 
  • Manufactured by Servomex - over 60 years’ experience innovating and pioneering gas analysis and thousands of units used in the field every year 
Benchmark compliance
  • IEC 61010-1 
  • Overvoltage Category II, Pollution Degree 2 
  • EU EMC Directive 
  • EU Low Voltage Directive

  • 19 inch (48.3cm) Wide x 10.5 inch (26.7cm) High x 22.5 inch (57.2cm) Deep
  • less than 31.8kg (70lbs)
  • IEC 61010-1 
  • Overvoltage Category II, Pollution Degree 2 
  • EU EMC Directive 
  • EU Low Voltage Directive

  • Bulk gas quality control checks for ultra high purity electrograde gas production in LED plant applications 
  • Leak detection in LED and LCD plant applications

Ensure your DF-745 NanoTrace moisture analyzer delivers optimum performance with Servomex Service Network.

Through our global network of engineers and service centers, we provide complete lifetime support for your analyzer. Our services range from installation and commissioning to supplying high quality spares and arranging scheduled servicing: visit our Service Network pages to find out more.

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