Product Overview
The Bently Nevada 330850-90-00 is part sur the 3300 XL 25 mm Proximity Transducer System, used for measuring differential expansion (DE) in large steam turbine generators. This sensor detects shaft displacement with a linear range sur 12.7 mm and high reliability under extreme conditions.
Applications
-
Differential Expansion (DE) monitoring on large steam turbines
-
Shaft position and movement detection
-
Machinery condition monitoring in thermal power generation
-
Retrsurit upgrades from 7200 series probes without system reconfiguration
Key Advantages
-
High-Temperature Tolerance: Probe withstands up to 200°C continuous, 250°C intermittently
-
Robust Construction: Sealed with FluidLoc and stainless steel armor options
-
Full System Compatibility: Drop-in replacement for 7200 series systems
-
EMI/RFI Immunitéy: Meets CE mark standards without special installation
-
Flexible Mounting: DIN rail or panel mounting options available
-
Long Cable Lengths: Up to 9 meters total system length for remote installations
Technical Specifications
| Parameter | Specification |
|---|---|
| Linear Range | 12.7 mm (500 mils) |
| Scale Factor | 0.787 V/mm (20 mV/mil) |
| Total System Length | 9.0 meters |
| Poids | 0.255 kg (sensor only) |
| Frequency Response | 0 – 2.7 kHz, -3 dB typical |
| Operating Temperature (Sensor) | -51°C to +100°C |
| Operating Temperature (Probe) | -35°C to +200°C continuous; 250°C short-term |
| Probe Tip Material | PEEK (Polyetheretherketone) |
| Probe Case Material | AISI 304 Stainless Steel |
| Sensor Housing Material | A380 Aluminum |
| Cable Type | 75 Ω triaxial FluidLoc PFA insulated |
| Minimum Bend Radius | 25.4 mm |
| Environmental Protection | 100% condensing humidity, IP54 with protection |
| Power Supply | -17.5 Vdc to -26 Vdc, 12 mA max |
| Output | -1.5 to -11.5 Vdc |
FAQ
Q1: What is the typical use case for the 330850-90-00 sensor?
A1: It is used for differential expansion measurements in large steam turbine generators.
Q2: What materials are used in the sensor’s construction?
A2: The probe case is AISI 304 stainless steel; the sensor is A380 aluminum.
Q3: Can this sensor operate in high-temperature environments?
A3: Yes, up to 200°C continuously and 250°C for short durations.
Q4: What is the maximum system cable length?
A4: Up to 9 meters (including probe and extension cable).
Q5: Is this sensor compatible with older Bently Nevada systems?
A5: Yes, it is a direct replacement for 7200 25 mm and 35 mm systems.
Q6: What output voltage does it provide?
A6: The sensor outputs from -1.5 Vdc to -11.5 Vdc over its linear range.
Q7: How is EMI/RFI interference handled?
A7: The sensor is designed with high immunitéy, complying with CE mark standards.
Q8: Can I use this in hazardous area environments?
A8: Yes, it is certified for use in Class I, Zone 0/2 environments.
Q9: What mounting options are available?
A9: Both DIN rail and panel mounting are supported.
Q10: What maintenance is recommended?
A10: Periodic verification using the sliding bracket and dial indicator kit.
Related Modèles (Same Series or Function)
| Modèle Number | Description | Cable Length | Poids |
|---|---|---|---|
| 330851-01-000-020-10-00-05 | 25 mm Probe, 1¼-12 thread, 2.0 in. case | 1.0 m | 0.230 kg |
| 330851-02-000-080-10-00-05 | 25 mm Probe, M30x2 thread, 8.0 in. case | 5.0 m | 0.410 kg |
| 330854-040-24-00 | Extension Cable, FluidLoc High Temp | 4.0 m | 0.180 kg |
| 330854-080-25-00 | Armored Extension Cable, High Temp | 8.0 m | 1.120 kg |
| 330853-01-00 | Short Sliding Bracket for DE application | – | 0.580 kg |
| 330850-50-00 | Proximitor Sensor, 5.0 m length, panel mount | 5.0 m | 0.255 kg |
Popular Bently Nevada Modèles
| Modèle Number | Description | Application | Poids |
|---|---|---|---|
| 3300/55-01-04 | Velocity Monitor | Vibration Monitoring | 0.38 kg |
| 3500/42M-01-00 | Proximitor Seismic Monitor | Shaft Vibration/Position | 0.30 kg |
| 3500/22M | Transient Data Interface | System Diagnostics | 0.50 kg |
| 3500/40M | Proximitor Monitor | Rotor Position Monitoring | 0.32 kg |
| 3500/33 | 16-Channel Relay Module | Alarm Relay Output | 0.45 kg |
| 3500/25 | Keyphasor Module | Phase Reference Input | 0.36 kg |
Informations sur l'entreprise
E-mail: [email protected]
Mobile：Contactez-nous par email
Whatsapp：Contactez-nous par email
Add: Alishan Building, 2 Lvling Rd, District Siming, Xiamen, Fujian, Chine, 361006
Nos services
Nous sommes spécialisés dans la fourniture de pièces d'automatisation industrielle avec une garantie d'un an. Nos pièces d'automatisation industrielle sont vendues dans le monde entier.
Nous pouvons fournir des équipements et des pièces détachées de différents pays et fabricants, résoudre vos inquiétudes ou problèmes de qualité en de nombreux endroits, et surfrir un excellent avantage de prix.
N'hésitez pas à nous appeler pour plus de détails sur les produits.