21000-16-10-00-077-03-02 – Bently Nevada | Proximity Probe Housing Assemblies

Proximity Probe Housing Assemblies (Model 21000)

Description

Crafted by Bently Nevada, this new, factory-sealed Proximity Probe Housing Assembly (Model 21000) is designed for reliable operation in hazardous areas. It includes a dome cover, threaded conduit ports, optional probe sleeves, O-rings, a reverse-mount probe, and more. Certified explosion-proof, it meets API 670 standards and CSA approvals for safety-critical industrial use.

Technical Data

Brand: Bently Nevada
Model: 21000
Material: Aluminum body with 304 stainless steel sleeve
Weight: ~1.1 kg (2.4 lb) (excluding fittings)
Probe Cable Length: 1.0 m (39 in)
Max (C+D) with Visible Probe: 17.0 in (43.18 cm)
Max (C+D) Dimension: 32.9 in (83.5 cm)
Probe Penetration Adjustment: ±0.5 in (13 mm)
Working Temp (Certified): T5 (-50°C to +40°C); T4 (-50°C to +80°C)

Model Suffix Breakdown

Model format: 21000-AA-BB-CC-DDD-EE-FF

AA: Probe Option (e.g., 16 = 3300 XL 8 mm probe)
BB: Cable Length (e.g., 10 = 1.0 m)
CC: Standoff Adapter (00 = no adapter)
DDD: Probe Penetration (e.g., 077 = 7.7 in)
EE: Fittings (e.g., 03 = 3/4-14 NPT plug + reducer + cable seal grip)
FF: Mounting Thread (e.g., 02 = 3/4-14 NPT)

Installation Guide

For probe penetration (1.0–2.0 in), counterbore machine cases to reduce side/rear view effects.
If penetration (C+D) >12 in (300 mm), add sleeve support to prevent resonance.

Compatibility

Works with CSA-approved hazardous area probes. Choose 21000 (aluminum) or 24701 (stainless steel) housings for intrinsically safe applications.

Certifications

CSA Explosion-Proof: Class 1 Div 1/2 (Groups C/D); Class 2 Div 1/2 (Groups E/F/G); Class III; Enclosure Type 4.
FCC: Compliant with Part 15 (no harmful interference).
RoHS: Directive 2011/65/EU.

Package Includes

Dome cover, threaded conduit ports, optional probe sleeve, O-rings, reverse-mount probe, thread seal, optional conduit fittings, optional standoff adapter, 3/4-14 NPT plug, 3/4-14 to 1/2-14 NPT reducer, cable seal grip (fits 1/8–3/8 in cables).

Download PDF file here:21000-24701-Datasheet