Pressure sensor maintenance

All instruments in the RBRquartz³ family use Paroscientific Digiquartz® pressure sensors which require specific maintenance.

The instructions below apply to the latest variant of the RBRquartz³ BPR, which has four set screws at the sensor end-cap.

Earlier variants have a single set screw in the centre, under the antifouling mesh.
rbrquartz3bpr end caps
Fig. 22.    RBRquartz³ BPR sensor end-caps. Left: earlier variant, right: current variant

Examine the sensor end-cap of your instrument before proceeding.

If your RBRquartz³ BPR appears to have only one set screw like in the left image, it is an earlier variant. In this case, contact our support team for advice on pressure sensor maintenance.

If it has four screws like in the right image, follow the instructions below to clean the buffer tube and refill the oil.