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Model D400 (25mm)

The OxyProbe dissolved oxygen sensor offers the most rugged design for 25 mm side ports. It fits directly into the vessel, eliminating the need for a housing, reducing contamination risks. The modular design allows quick replacement of any part, making it easy to maintain and repair the sensor. OxyProbe dissolved oxygen sensors carry a 2-year warranty.

Ordering Information

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All Broadley-James dissolved oxygen sensors are available with optional right angle connector. This low profile design provides:

  • Protection against cable fatigue
  • Improved grip for sensor extraction
  • Increased clearance between vessels

Specification

Features:

  • 316L Stainless Steel
  • Serialized for traceability
  • RA32 finish with electropolish on wetted parts
  • Internal and external silicone o-rings
  • Secured retainer ring

The internal seals of an Oxyprobe are all mechanical seals using o-rings. There are no adhesives to leak or fail in process, making this a more rugged and reliable sensor. Replacing the cathode is also much easier and faster since there is no sealant to clean from the threads. No sealant also makes the job of replacing the cathode much faster and cleaner.

  • O-rings: AG-SR15
  • Membrane Cartridges: Single, Four and 25 piece Cartridge Kits

How to choose a sensor

  1. Confirm the entry site is a standard 25 mm port.
  2. Determine how far the sensor should extend into the vessel. For most process media, the minimum length is optimal. However, if the media is viscous and tends to coat the inner wall of the vessel, a longer length may provide better performance.
  3. Decide whether a right angle connector is preferred over a straight connector.
  4. Choose cable length and connector. All D.O. sensors require cable and connector assemblies.

Standard 25 mm OxyProbe with Straight Connector

Sensor Model Sensor Length Typical Insertion Length Sensor Part Number
D400 70 mm 35 mm (1.4″) D400-B070-PT-D9
D400 150 mm 115 mm (4.5″) D400-B150-PT-D9
D400 220 mm 182 mm (7.2″) D400-B220-PT-D9
D400 320 mm 278 mm (10.9″) D400-B320-PT-D9
D400 420 mm 374 mm (14.7″) D400-B420-PT-D9