Precision Bently Nevada 21000-34-05-20-050-03-02 21000 Proximity Probe Housing Assembly

Technical specifications

• Brand : Bently Nevada
• Model : 21000 Proximity Probe Housing Assembly (suffix code 34‑05‑20‑050‑03‑02)
• Probe type : 3300 XL 8 mm reverse‑mount probe with connector protector
• Cable length : 0.5 m (20 in) – suffix code 05
• Standoff adapter : 2.0 in – suffix code 20
• Probe penetration : 5 in (127 mm) – suffix code 050
• Fitting option (03) : One 3/4‑14 NPT plug, one 3/4‑14 to 1/2‑14 NPT reducer, cable seal grip with grommets for 1/8–3/16 in, 1/4–5/16 in, and 5/16–3/8 in cables
• Mounting thread : 3/4‑14 NPT – suffix -02
• Materials : Aluminum body with 304 stainless steel sleeve
• Temperature range (operating/storage) : -51 °C to +177 °C (-60 °F to +351 °F)
• Maximum (C)+(D) dimension : 13.5 in (34.3 cm)
• Weight : 1.1 kg (2.4 lb) typical without fittings

Complete suffix information

• 21000 – Proximity Probe Housing Assemblies
  • 34 : 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals
  • 05 : Probe cable length 0.5 m (20 in)
  • 20 : Standoff adapter 2.0 in
  • 050 : Probe penetration 5 in
  • 03 : Fitting option – NPT plug, reducer, cable seal grip (three grommet sizes)
  • -02 : Mounting thread 3/4‑14 NPT

Key performance & environmental data

• Sensor linearity : The 3300 XL 8 mm probe ensures excellent linearity over the entire temperature range.
• Frequency response : Ideal for rotating machinery monitoring per API 670 standards.
• Resolution : High‑resolution output compatible with Bently Nevada monitors.
• Environmental tolerance : Rated CSA Type 4 (explosion‑proof) for harsh & hazardous zones.
• EMI/RFI immunity : Shielded design rejects industrial electrical interference.

Installation highlights

• Direct mount via 3/4‑14 NPT thread (-02) – mandatory when standoff adapter is not -00.
• Includes thread seal and O‑rings for a positive pressure seal.
• Fitting kit (option 03) provides everything for conduit connection and cable sealing.
• Dome cover screws securely into the aluminum body for quick probe access.

What the package contains

• 21000 housing body with stainless steel sleeve and dome cover
• 3300 XL 8 mm reverse‑mount proximity probe (installed)
• 0.5 m probe cable with connector protector
• Standoff adapter 2.0 in (suffix 20)
• Fitting kit: 3/4‑14 NPT plug, 3/4‑14 to 1/2‑14 reducer, cable seal grip with three grommet sets
• Thread seal and O‑rings (mounted)
• Assembly documentation – no separate certificate or warranty card inside package

Frequently asked questions

• Can I use this 21000 Proximity Probe Housing Assemblies with 11 mm probes?
  This specific suffix (34) includes a 3300 XL 8 mm probe. For 11 mm probes please order the appropriate suffix.
• What shipping methods do you offer?
  Ubest Automation ships via FedEx, UPS, or DHL – all tracked and insured.
• Is the housing suitable for outdoor installation?
  Yes, the CSA Type 4 rating makes it watertight and explosion‑proof for outdoor hazardous areas.
• Does the 0.5 m cable include the connector?
  Yes, the cable terminates in a connector with protector (suffix 34).
• Can I order different standoff lengths?
  The -20 suffix denotes 2.0 in; other lengths are available – consult suffix table.

Author: Ubest Automation

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