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Bently Nevada 3300/46 3300/46-46-04-02-01 Differential Expansion Monitor
Bently Nevada 3300/46 3300/46-46-04-02-01 Differential Expansion Monitor
Ramp Differential Expansion Monitor power plant turbine monitoring
Bently Nevada 3300/46 3300 XL 11mm system input
10-0-10 mm full-scale range Bently Nevada 3300 rack
Lugar de origen:
EE.UU
Nombre de la marca:
Bently Nevada
Número de modelo:
3300/46 3300/46-46-04-02-01
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Detalles del producto
Model:
3300/46 3300/46-46-04-02-01
Country of origin:
USA
Modelo:
3300/46 3300/46-46-04-02-01
País natal:
EE.UU
Lugar de envío:
Xiamén, China
Envío:
TNT, DHL, FedEx, EMS, UPS
Cantidad mínima de pedido:
1 pieza
Embalaje:
Nuevo embalaje original.
Resaltar:
Ramp Differential Expansion Monitor power plant turbine monitoring
,Bently Nevada 3300/46 3300 XL 11mm system input
,10-0-10 mm full-scale range Bently Nevada 3300 rack
Pago y términos de envío
Cantidad de orden mínima
1
Precio
66USD
Detalles de empaquetado
Nuevo y original
Tiempo de entrega
2-3 días laborables
Condiciones de pago
T/T
Capacidad de la fuente
en stock
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Descripción de producto
Bently Nevada 3300/46 3300/46-46-04-02-01 Differential Expansion Monitor
Product Overview
| Field | Verified Data |
|---|---|
| Manufacturer | Bently Nevada |
| Series | 3300 Monitoring System (Legacy/Obsolete) |
| Model Number | 3300/46 |
| Full Part Number | 3300/46-46-04-02-01 |
| Monitor Type | Ramp Differential Expansion |
| Measurement Logic | Single-channel monitor using two proximity probes to observe a ramped rotor surface. |
Contact Us for Pricing or Technical Support:
Contact: Miya Zheng
Email: sales@amikon.cn
WhatsApp: +86 180 2077 6792
Key Features
- Specialized Ramp Differential Expansion Logic: Engineered to measure "Ramp" surfaces on the rotor using two proximity probes to calculate large-scale thermal growth between rotor and stator. Crucial for monitoring steam turbine startup and shutdown phases to prevent internal contact caused by uneven thermal expansion.
- Fixed Hardware Calibration (-46 & -04 Options): Factory-calibrated for a symmetrical ±10mm range, providing a wide window for measuring significant casing-to-rotor movement. Specifically designed to interface with the 3300 XL 11mm Proximity Transducer System.
- Industrial-Grade Relay Protection (-02 Option): Features gas-tight, dual-relay outputs for Alert and Danger status. Highly resistant to environmental contaminants, ensuring long-term reliability in power plant or refinery environments with fail-safe operation.
- Hazardous Area Certification (-01 Option): CSA/NRTL/C approved for use in Class I, Division 2 (Groups A, B, C, and D) hazardous locations, suitable for critical assets operating in volatile environments.
- Diagnostic and System Integration: Includes front-panel buffered outputs for ADRE diagnostic tools and configurable recorder outputs supporting multiple signal formats (4-20 mA, 1-5 Vdc) for seamless integration into legacy DCS or modern PLC systems.
- Critical Legacy Asset Support: Acts as a vital drop-in spare for existing Bently Nevada 3300 Racks, extending the life of current monitoring systems without immediate need for full 3500-series upgrade.
Applications
- Steam Turbine Differential Expansion Monitoring: Primary application for monitoring differential expansion in large-scale steam turbines. Uses ramped surface on rotor to track relative growth during thermal cycles, preventing catastrophic internal contact (rubs) between rotating and stationary components during startup and shutdown.
- Critical Rotating Machinery Protection: Essential for critical asset protection in power plants, refineries, and petrochemical facilities. Applied to high-speed centrifugal compressors and gas turbines where axial thermal growth must be continuously monitored to ensure operation within mechanical clearances.
- Hazardous and Corrosive Environments: Equipped with hermetically sealed relays and CSA/NRTL/C approval for oil & gas facilities with explosive gases (Class I, Div 2) and corrosive areas requiring gas-tight seals to protect relay contacts from oxidation.
- Legacy System Maintenance and Life Extension: As a legacy 3300 Series spare part, maintains existing Bently Nevada 3300 monitoring racks to maintain API 670 compliant protection without immediate migration to 3500 series.
- Machinery Diagnostic and Analysis Integration: Through front-panel buffered outputs, integrates with ADRE (Automated Diagnostics for Rotating Equipment) for high-level thermodynamic analysis and troubleshooting rotor behavior under different load conditions.
Frequently Asked Questions
What kind of machinery protection does the 3300/46 (3300/46-46-04-02-01) actually handle?
This unit is mainly doing Ramp Differential Expansion monitoring. In simple terms, it watches how the rotor grows axially compared to the casing when the machine is heating up or going through load changes. It uses that ramped reference surface idea, so during startup or thermal shifts you don’t end up pushing past mechanical clearances. Basically it’s there to keep steam turbines and similar rotating equipment from getting into “tight fit” situations when everything starts expanding.
What transducer system is required with 3300/46 3300/46-46-04-02-01?
This one is tied quite specifically to the 3300 XL 11mm Proximity Transducer System. The -04 configuration is factory-matched, so it’s not really flexible in the field. If someone tries swapping in other sensors, accuracy starts to drift and it just doesn’t behave as intended. So in practice, you stick with the 3300 XL 11mm setup to keep everything stable.
How about relays and certifications on the 3300/46 3300/46-46-04-02-01?
Inside you’ve got Hermetically Sealed Dual Relays (-02 option), used for Alert and Danger outputs. They’re sealed for harsher environments, which is usually what you expect in turbine rooms or power plants. On the safety side, it carries CSA/NRTL/C approval (-01 option), so it’s cleared for hazardous area use where compliance matters.
Can I adjust the measurement range of this module in the field?
Not really. The range is locked by hardware configuration. For this specific 3300/46 3300/46-46-04-02-01, the full-scale range is fixed at 10-0-10 mm. So if your application needs something different, you don’t tweak it in software or field settings—you’d need a different variant of the module.
Since this series is obsolete, where can I acquire a reliable 3300/46 3300/46-46-04-02-01 for my system?
Yeah, it’s obsolete, but still widely used in legacy setups. Usually sourcing is through spare-part suppliers who specialize in older Bently Nevada systems. We do supply verified units, so plants can keep existing 3300 racks running without redesigning the whole protection system. Most customers just want drop-in compatibility and identical spec, which is basically what this model is kept for.
How does the 3300/46 3300/46-46-04-02-01 connect with external diagnostics?
On the front panel you’ll find buffered coaxial outputs. These are pretty useful because you can tap the signal directly without disturbing the system. People often hook it up to ADRE or other dynamic analysis tools for real-time diagnostics and troubleshooting. It’s a straightforward way to monitor vibration or expansion behavior while the machine is running, without extra complicated interfaces.
Compatible Parts
| 330103-02-07-10-02-00 | 22810-00-10-10-02 |
| 330103-02-12-10-02-00 | 330193-00-05-10-00 |
| 330103-05-13-10-02-00 | 330103-02-12-05-02-CN |
| 330103-07-12-10-02-00 | 330103-06-13-05-02-CN |
| 330104-01-05-10-02-00 | 330104-00-04-10-02-CN |
| 330703-050-120-10-02-00 | 990-05-XX-01-CN |
| 330709-050-120-10-02-00 | 330101-30-63-15-02-CN |
| 76686-040-01 | 330104-00-04-50-11-00 |
| 81305-040-00 | 330104-00-12-10-02-00 |
| 135489-04 | 330104-00-15-10-02-00 |
| 128031-01C 128031-01 | 3300/05 |
| 330904-05-14-05-02-00 | 991-01-XX-02-05 |
| 330930-040-00-00 | 9200-06-05-05-00 |
| 330909-00-60-10-02-05 | 330101-00-28-05-02-00 |
| 21000-16-10-15-057-03-02 | 330103-00-06-05-02-00 |
| 21000-16-10-15-102-03-02 | 330106-05-30-15-02-00 |
| 21000-16-10-15-114-03-02 | 330101-00-63-10-02-00 |
| 21000-16-10-15-144-03-02 | 330103-00-08-05-02-00 |
| 991-01-XX-01-CN | 330103-00-07-10-02-00 |
| 3500/93 135799-02 | 330103-07-18-10-02-00 |
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