Probe Assembly | Bently Nevada | 21000-28-05-00-066-04-02

Proximity Probe Housing Assemblies (Model 21000)

What It Is

New, factory-sealed Proximity Probe Housing from Bently Nevada. Built to safely hold probes in risky areas, it includes a dome cover, threaded ports for wires, probe sleeves, O-rings, and a reverse-mount probe—rated explosion-proof for hazardous use.

Key Specs

Brand: Bently Nevada
Model: 21000 (Product #: 21000-28-05-00-066-04-02)
Material: Aluminum body with 304 stainless steel sleeve
Weight: ~1.1 kg (2.4 lb) without extra parts
Max Probe Length (0.5m cable): 13.5 in (34.3 cm)

Model Code Explained (21000-AA-BB-CC-DDD-EE-FF)

AA: Probe type (e.g., “28” = 3300 XL 8mm probe with safety approvals for risky areas)
BB: Probe cable length (e.g., “05” = 0.5m/20in)
CC: Standoff adapter (e.g., “00” = No extra cable needed)
DDD: Probe depth (e.g., “-066” = 6.6in; can adjust ±0.5in)
EE: Fittings (e.g., “04” = One 3/4-14 NPT plug)
FF: Mount thread (e.g., “-02” = 3/4-14 NPT; required if CC ≠ “00”)

Install Tips

If probe goes 1.0-2.0 inches into the machine, make a small hole in the case to avoid view issues.
If probe depth is over 12in (300mm), add support near the probe to stop shaking.

Works With

Pairs with 21000 (aluminum) and 24701 (stainless steel) housings. Supports extra wire fittings and standoff adapters.

Certifications

CSA explosion-proof approval for risky areas.
CSA Type 4 enclosure rating.
Meets API 670 Standard for probe housings.

What’s in the Box

Dome cover, threaded wire ports, probe sleeve (length optional), O-rings, reverse-mount probe, thread seal, extra wire fittings (optional), standoff adapter (optional).
Download PDF file here:21000-24701-Datasheet