DIAMOND POWER SERIES II PROBE

Direct Replacement Electrode

The Diamond Power SERIES II PROBE is a high-pressure probe used by Diamond Power in their Series II water columns. This is yet another version of the Aquarian HP Probe. This probe is common in a number of systems that were part of a partnership gone wrong or copied by other companies. Fossil Aquarian, Tyco, Yarway, and Penberthy all share this common design. The pricing on the OEM parts is extremely high for no real reason. The DL964 is a direct replacement for all these probes and is available at a much lower price, but with the same quality and warranty. Even though the rating is 370 degrees C and 210 bar. These probes are routinely used for superheated steam applications (560 deg C and 300 bar).

The Aquarian OEM probe is constructed using brazed 304 stainless steel and zirconia insulator. 304 stainless steel is not the best material to use for probe construction. The thermal expansion coefficient (rate of expansion with increase in temperature) of the two materials does not match well and it leaves the probe susceptible to failure at the brazed joint. Drumline use materials that are more closely matched in terms of thermal expansion coefficient, which results in a more reliable probe.