Model 356 Housing (Sartorius Safety Port 25 mm – Pg13.5)

When these housings are used with the Sartorius safety port, the port will release internal steam pressure in the vessel before the housing is completely disengaged from the port. The metric FermProbe pH electrodes thread directly into the 356 housings, eliminating the need for a threaded retainer nut. In order to prevent twisting the cable, the metric FermProbes have a detachable cable.

An unguarded version is also available (see model 346). Using a guarded housing is highly recommended for pH electrodes to provide maximum protection against damage to the sensing bulb. However, highly viscous media is prone to clog the guard.

Specification

• 316L stainless steel construction.
• Serialized for traceability to mill steel specifications.
• RA32 finish with electropolish on all wetted parts.
• FDA compliant external EPDM o-rings.
• Permanently secured port retainer ring for additional operator safety.

Additional Features

• Guarded versions for rugged handling while protecting the pH glass bulb in a production environment.
• Unguarded versions for viscous media also available (model 346).
• Custom designs and custom modifications promptly quoted.

Guarded Housings

1. Confirm that the vessel has a Sartorius Biotech 25 mm side port (for assistance with this please see our FAQ for ‘How do I choose a housing style‘.
2. Determine whether the application will permit the use of a bulb guard on the housing. The bulb guard design is highly recommended for all types of applications except where media is highly viscous. Highly viscous media is prone to clog the guard area of the housing which can cause erroneous measurements.
3. Choose the correct steam sterilizable FermProbe pH electrode from the models  F-235, F-285, F-635, F-695, F-835, F-895 Metric FermProbes® and models D540 or D545 12 mm OxyProbe® II dissolved oxygen sensors.