SU4 – Sample Conditioning Unit

Designed for gas or general compressed air sampling

Product details

The Shaw Moisture Meters Model SU4 sample conditioning unit is designed to reduce the dryer/process line pressure to give a pressure and flow suitable for measurement.

The system is designed for gas or general compressed air sampling and allows the sensor to operate at atmospheric pressure. It combines a pressure reduction control, sensor holder and a flow meter for up to 10 litres per minute (1 – 2 litre is usual for continuous use).

The SU4 is suitable for wall mounting, comprising a pressure regulator, flow indicator and sensor holder mounted on a stove enamelled backplate. It conditions the flow of sample gas to the required 2 – 10 litres per minute at near atmospheric pressure for accurate and consistent sampling. Pneumatic connections with a choice of ⅛”, ¼” or 6 mm compression fittings are available, if required, for inlet and outlet.

Key features of SU4 – Sample Conditioning Unit

  • Shaw brand accurate held hygrometer
    Designed for gas or general compressed air sampling
  • Shaw brand accurate held hygrometer
    Reduced inlet pressure from up to 210 bar (3045 psi)
  • Shaw brand accurate held hygrometer
    Adjustable sample flow – up to 10 litres per minute
  • Shaw brand accurate held hygrometer
    All stainless steel fittings and pipework
  • Shaw brand accurate held hygrometer
    Inlet and outlet fittings with a choice of ⅛”, ¼” or 6 mm compression fittings
  • Shaw brand accurate held hygrometer
    Overall dimensions: 260 mm (h) x 160 mm (w) x 135 mm (d)
  • Shaw brand accurate held hygrometer
    Approximate weight: 1.6 – 1.8 kg
  • Shaw brand accurate held hygrometer
    Sampling options: Input pressure (pr): Up to 200 bar (MED), 400 bar (HI)
  • Shaw brand accurate held hygrometer
    Wall mounted with 4 x 5 mm mounting holes at 240 mm (h) x 140 mm (w)
  • Shaw brand accurate held hygrometer
    Optional filter unit available (for 200 bar variants only)
  • Shaw brand accurate held hygrometer
    Optional Firtree fittings for 6 mm id hose (low pressure only typically <8 bar)
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System accuracy

Each sensor is calibrated to provide an overall system accuracy of better than ±2 °C (±3.6 °F) dewpoint and supplied with a Calibration Certificate traceable to international standards.

Ordering information

  • Shaw brand accurate held hygrometer
    SU4-Me (⅛”, ¼” or 6 mm fittings) for 200 bar variant
  • Shaw brand accurate held hygrometer
    SU4-Hi (⅛”, ¼” or 6 mm fittings) for 400 bar variant

Please state required fittings with order.

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