21000-28-05-00-060-03-02 21000-28-05-00-080-03-02 Bently Nevada proximity probe housing assembly
Description
The 21000 series housings from Bently Nevada are external-mount metal housings for proximity probe systems, intended to provide a rigid, sealed mount for a
proximity probe (often a 3300-series probe) so that probe gap monitoring and replacement
can occur without full machine disassembly.
21000-28-05-00-060-03-02 21000-28-05-00-080-03-02 Details
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FAQ
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1. Are these housings explosion-proof/hazardous area rated?
A: Yes — the datasheet confirms that the 21000 (aluminum) and 24701 (stainless steel) housing assemblies are available with Canadian
Standards Association (CSA) approvals and are rated explosion proof in hazardous areas. You would need to verify that the specific
suffix corresponds to the “hazardous area” option. If your suffix includes that option, you’re covered; otherwise ensure
you have the correct rating for your zone/area.
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2. What is “probe penetration” and why does it matter?
A: Probe penetration refers to the length the probe extends into the housing/sleeve so that the sensor tip will be at the correct
position relative to the rotor/target inside the machine. A correct penetration ensures the target/probe gap is correct and
stable. Choosing 6.0 in vs 8.0 in (for the suffix “060” vs “080”) depends on your machine geometry
(distance from casing to rotor, standoff adapter etc).
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3. Can I use these housings with any proximity probe?
A: They are designed for use with Bently Nevada proximity probes (e.g., 3300 series) and the specified probe option
in the suffix. While physically you might mount another probe, warranty/accuracy/specification
may not apply. It is best to use the housing+probe
combination as specified by Bently.
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4. What is the difference between the 21000 series and newer 31000/32000 series?
A: The datasheet notes that while the 21000/24701 series are all-metal housings, the 31000/32000 series
provide more flexible mounting options, improved environmental resistance (e.g., thermoplastic
parts) and may be preferred where explosion proof rating is not required.
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Inquiry now: miya@mvme.cn
Bently Nevada Hot Series:
- 3300 XL Proximity Probe
- 3300 Proximitor Sensor
- 3500 Power Supply
- 1900/65A
- 3500/42 Monitor Module
- The 990 Vibration Transmitter
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