Bently Nevada 21000-28-05-20-051-04-02 Proximity probe housing assembly

FAQ

Q1: What does the suffix “-28-05-20-051-04-02” in the model number indicate?
“28” = 3300 XL 8 mm probe with selectable approvals; “05” = 0.5 m cable; “20” = 2.0 in standoff adapter; “051” = 5.1 in probe penetration; “04” = one 3/4-14 NPT plug; “02” = 3/4-14 NPT mounting thread.

Q2: Is the proximity probe included with this housing assembly?
Yes, the assembly comes with the 3300 XL 8 mm probe and the 0.5 m cable preinstalled.

Q3: What are the approximate dimensions and weight of this unit?
Approximately Ø50 mm diameter and ~180 mm length; weight ~1.1 kg without extra fittings.

Q4: What materials are used for the housing and sleeve?
The body is aluminum, and the sleeve (probe support) is 304 stainless steel for durability and corrosion resistance.

Q5: What is the temperature rating for this assembly?
It operates and stores reliably between –51 °C and +177 °C.

Q6: What does the “04” fitting option denote?
It includes a single 3/4-14 NPT plug only, with no reducer or cable seal grip.

Q7: Can this model be used in hazardous or explosive environments?
Yes, it is designed for explosion-proof applications, compliant with CSA and API 670 standards.

Q8: Can the standoff adapter or probe penetration length be changed later?
This variant includes a 2.0 in standoff adapter and 5.1 in penetration. Changing these requires a different model suffix or a compatible external adapter.

21000-28-05-20-051-04-02 Bently Nevada

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