I. Model Breakdown (330908-X-X-X-X-X)

330908: 3300 NSv series probe (compact type, side-view restricted)

09: Non-threaded length 0.9 inches (22.9mm)

95: Total shell length 9.5 inches (241.3mm)

02: With stainless steel armor (anti-mechanical wear, tensile resistance)

05: Explosion-proof certification (ATEX/IECEx/CSA), suitable for hazardous zones (Zone 0/1/2)

II. Core Parameters

1. Mechanical Specifications

Probe diameter: 3/8 - 24 UNF thread (≈ 9.5mm)

Non-threaded length: 0.9 in (22.9mm)

Total shell length: 9.5 in (241.3mm)

Cable total length: 1.0m (standard)

Cable structure: With stainless steel armor (02 = Armor)

Connector: ClickLoc® coaxial quick plug (gold-plated contacts, waterproof and dustproof)

Minimum bending radius: ≥ 25mm

Weight: Approximately 0.3kg

2. Electrical Characteristics

Measurement principle: Electromagnetic induction (non-contact)

Linear range: 0.05 - 5mm (compatible with 4140 steel target)

Sensitivity: 200mV/mm (±5%)

Frequency response: 0 - 10kHz (covering vibration / rotational speed)

Impedance: 50Ω (matched with extension cable / preamplifier)

Direct current resistance: Approximately 4.2Ω (1.0m cable)

3. Environment and Explosion-proof

Operating temperature: -40°C - +120°C

Protection level: IP67 (dustproof and waterproof)

Explosion-proof: 05 = ATEX/IECEx/CSA certification (oil/gas / chemical hazardous zones)

Anti-vibration: 10g (10 - 1000Hz)

Sealing: Viton® O-ring (resistant to oil, corrosion)

III. System Compatibility (Must be matched as a set)

Probe: 330908-09-95-02-05 (1.0m with armor explosion-proof)

Extension cable: 330930-045-01-05 (4.5m with armor explosion-proof)

Preamplifier: 330980-50-00 (total length = 1.0 + 4.5 = 5.5m)

Monitoring frame: 3300 TSI, 3500 TSI

Monitoring module: 3500/40M (vibration), 3500/50M (phase / rotational speed)

IV. Comparison of Key Models in the Same Series (330908)

Model Non-threaded length Total shell length Armor Explosion-proof Applicable scenarios

330908-09-95-02-05 0.9" 9.5" ✅ ✅ Small space + Hazard zone + Wear-resistant (oil priority)

330908-09-95-00-05 0.9" 9.5" ❌ ✅ Small space + Hazard zone + No mechanical pulling

330908-09-95-02-00 0.9" 9.5" ✅ ❌ Small space + General industry + Wear-resistant

V. Installation Tips

Space Adaptation: Designed for blind holes, side-view / rear-view restricted, replacing standard 5/8mm probe.

Length Matching: Probe cable + extension cable = Preamplifier nominal length (e.g., 1 + 4.5 = 5.5m).

Connector Protection: Avoid oil and dust, use protective cap when idle.

Cable Routing Fixation: Fixed every 0.5 - 1m, away from high-temperature / high-pressure pipes, avoid hard bending.

Grounding Specification: Shield layer only grounded on one side of the preamplifier, anti-loop interference.