Pharmaceutical NIR Moisture Gauge

Pharmaceutical NIR Moisture Gauge


The PH710e pharmaceutical NIR moisture gauge is non-contact moisture gauge specifically designed to meet the needs of pharmaceutical manufacturing companies. Using near infrared (NIR) principle it is suitable monitoring the drying process. The gauge can either be used to make non-contacting measurements of the powder during the drying process by measuring through a sight glass or, in fiber-optic format, be used with the GEA Lighthouse™ probe. The combination of the PH710e with the automated GEA Lighthouse probe is a powerful viable in-process alternative to off-line LOD testing and complements the other real-time outputs used to run a granulation suite by providing:

– a robust real-time measurement of moisture
– improved drying process visualisation
– full CIP capability and wash-in-place during production

Achieving reliable on-line moisture measurement requires the fulfilment of two key criteria:

– reliable and robust analyser measurement technology
– reliable and robust process interfacing to guarantee that the analyser measures representative product
The combination of GEA’s Lighthouse probe with NDC’s PH710e analyser ensures delivery of both.

Quick Spec

Moisture range  Head construction Protection rating Measuring principle
Depending on application  Stainless steel IP65 near infrared (NIR)

Operating principle

The PH710e works on the principle that moisture absorbs a specific wavelength of light. By pulsing light at a different known wavelength and comparing the absorption rate to an internal reference it is possible to determine exactly by how much each wavelength is being absorbed. Using high-speed signal processing the algorithm converts the infrared signals into an output that is proportional to moisture content by means calibration curve. The measurement in unaffected by changes in process conditions such as particle size, product height temperature, ambient lighting and humidity changes.


  • Powders and granules
  • Flakes
  • Slurries
  • Chemicals
  • Detergents
  • Fertilizers
  • Pharmaceuticals
  • Nutraceuticals

NDC Technologies long experience

NDC Technologies have nearly 40 years experience in applying NIR technology to their in-process measurement systems. This experience is engineered into every gauge model to ensure that the user can easily employ the gauges without specialist knowledge yet will benefit from accurate and dependable measurement from day one.

Stable dependable measurement

Providing stable measurement is essential in helping our customers improve their process control and maximise efficiency.

Insensitive to ambient humidity and temperature

Designed for purpose and suitable for continuous in-line measurement

Fast measurement rate

Fast measurement rate enables fast process variations to be accurately monitored ensuring the best possible process control.

Network ready

Instaling single or multiple gauges is very simple with OWS operator level workstation and HMI for supervisory access for upto 16 networked PH710e gauges

Low cost of ownership

Long term stability combined with industry best performance, low installation costs and no routine maintenance requirements guarantee the lowest cost of ownership over PH710e’s many years of service.