D635-VP (25mm Sartorius) Dissolved Oxygen Sensor

This Broadley-James D635-VP (25mm Sartorius) Dissolved Oxygen Sensor is designed for use with sartorius ports which are slightly longer than the standard length and have a different internal design. As such they need slightly different sensors. This VarioPin version has a right-angled connector and is also available as the D630-VP with straight connector. In both of these sensors the o-ring has been moved closer to the tip in order to create a better seal. It is also available in both formats with standard D9 connectors.

The sensor fits directly into the vessel, eliminating the need for a housing, reducing contamination risks. Few accessories are required. The modular design allows quick replacement of any part, making it easy to maintain and repair the sensor. OxyProbe dissolved oxygen sensors carry a 1-Year Warranty.

D635-VP (25mm Sartorius) Dissolved Oxygen Sensor Specification

• 316L Stainless Steel
• Serialised for traceability
• RA32 finish with electropolish on wetted parts
• External EPDM o-ring
• Secured retainer ring

How to choose a sensor

1. Confirm the vessel has a 25 mm Sartorius 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 or a straight connector.
4. Choose cable length and connector. All Dissolved Oxygen sensors require cable and connector assemblies.

It is important to maintain the sensors by inspecting and calibrating them regularly. The membrane cartridge should be checked and refilled prior to every use.

D635-VP (25mm Sartorius) Dissolved Oxygen Sensor Right-Angled Connector

Membrane Kits

Broadley-James offer a range of membrane kits to suit all our dissolved oxygen sensors. These include everything required to replace the membrane cartridge and internal o-rings. All kits include:

• QC Certificate
• Material Cert

The following membrane kits are suitable for use with the D635-VP (25mm Sartorius) Dissolved Oxygen Sensor:

Membrane Kit	Example Image	Kit Contents
Single Cartridge Kit for OxyProbe II Part No. MK29-01		One 25 ml bottle of electrolyteOne membrane cartridge One set of internal o-rings
Four Cartridge Kit for OxyProbe II Part No. MK29-04		One 25 ml bottle of electrolyteFour membrane cartridges Four sets of internal o-rings
16 Piece Cartridge Kit for OxyProbe II Part No. MS29-16		16 membrane cartridges in one easy-to-store box.Internal o-rings and electrolyte must be ordered separately.

Compatible Cables

The D635-VP (25mm Sartorius) Dissolved Oxygen Sensor uses a VP (VarioPin) connector. This multifunctional electrode is capable of both receiving and processing a number of signals at the same time. We recommend the following cables for use with the D635-VP Dissolved Oxygen sensor:

Cable Type	Sensor Connector & Device Connector	Device Terminal
VP plug to Ferrules

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.