Retraction Armatures

The HAMILTON RETRACTOFIT is an ideal armature for industrial applications. The armature allows the user to install maintenance-free electrodes in critical processes. The main advantage of this design is that the sensor can be withdrawn while the process is running (i.e. for cleaning, calibration or even to replace the electrode), without interrupting the process. The design allows the use of sensors with 10 to 5 mm shaft length and a PG 1 .5 thread, e.g. electrodes such as the EASYFERM PLUS VP 5, MECOTRODE 5 and OXYGOLD G 5. The armature is very easy to use and maintain. Only one press of the red button is needed to move the electrode into or out of the process. All o-rings are easily replaced without special tools.

An integral safety mechanism prevents the armature from being inserted into the sample without an electrode installed. This prevents an open connection between the inside of the process vessel and the external environment. In the retracted position, the electrode is retained in a chamber where it can be kept moist, cleaned and even calibrated. This can all be done without process interruption or disassembly of the armature. Two tube connectors allow access to the rinsingchamber.

Two accessories are available for the RETRACTOFIT. A shortened insertion tube that allows use of the armature in narrow-bore pipes for which the standard insertion tube is too long. A closed insertion tube converts the RETRACTOFIT into a sampling system for diverse applications. Both accessories can easily be exchanged for the standard insertion tube using only gentle hand pressure.

The RETRACTOFIT BIO is the sanitary designed version for biotechnology and food applications.
Advantages:
• One-hand operation
• Insertion is only possible with an electrode installed
• Electrode cannot be removed when in measurement position
• Visual check of o-rings
• Longer sensor life due to 5 mm sensor length

RETRACTOFIT PEEK:

All steel parts constantly exposed to the process are replaced with PEEK. This allows the holder to be used with highly corrosive media providing the calibration chamber is thoroughly rinsed after retraction.