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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Product Description
The Bently Nevada 330400-02-CN Accelerometer is a high-performance vibration monitoring sensor designed for machinery protection in critical industrial applications. It is especially suitable for casing acceleration measurements like gear mesh analysis. Fully compliant with API 670, this accelerometer offers 100 mV/g sensitivity and 50 g peak acceleration range, making it ideal for detecting faults such as unbalance and misalignment in rotating equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensitivity | 100 mV/g (10.2 mV/m/s²) ±5% |
| Acceleration Range | 50 g (490 m/s²) peak |
| Frequency Response | 10 Hz to 15 kHz (±3 dB); 30 Hz to 10 kHz (±10%) |
| Amplitude Linearity | ±1% to 50 g |
| Noise Floor (10 Hz–15 kHz) | 0.004 g (0.039 m/s²) rms |
| Mounted Resonant Frequency | >30 kHz |
| Operating Temperature Range | -55°C to +121°C (-67°F to +250°F) |
| Shock Survivability | 5000 g peak (49,050 m/s²) |
| Humidity | 100% condensing (hermetically sealed) |
| Output Bias Voltage | -8.5 ± 0.5 Vdc |
| Input Voltage | -24 ± 0.5 Vdc |
| Bias Current | 2 mA nominal |
| Connector Type | 3-pin MIL-C-5015 |
| Case Material | 316L stainless steel |
| Sensor Head Diameter | 23 mm |
| Height (incl. mounting stud) | 59 mm |
| Weight (without cable) | 100 g (0.1 kg) |
| IP Rating | Equivalent to IP68 |
| Mounting Torque | 4.1 N·m (3.0 ft·lb) |
Applications
-
Gearbox monitoring
-
Bearing housing acceleration measurements
-
API 670 compliant systems
-
High-speed compressors and turbines
-
Gear mesh frequency detection
-
Industrial rotating machinery in oil & gas, power, and process industries
Advantages
-
API 670 compliant for trusted industrial reliability
-
High sensitivity and wide frequency response for precise diagnostics
-
Hermetically sealed stainless steel housing for harsh environments
-
Shock-resistant up to 5000 g, ensuring durability in demanding conditions
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Compact and lightweight design allows versatile installation
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Long cable support up to 305 m without signal degradation
Frequently Asked Questions (FAQ)
Q1: What is the main function of the 330400-02-CN accelerometer?
A1: It measures casing acceleration for vibration monitoring in critical rotating machinery.
Q2: What is the sensitivity of the 330400-02-CN?
A2: It has a sensitivity of 100 mV/g.
Q3: Is the sensor suitable for API 670 applications?
A3: Yes, it fully complies with API 670 standards.
Q4: What frequency range does this model support?
A4: It supports 10 Hz to 15 kHz with ±3 dB accuracy.
Q5: Can it be mounted in any orientation?
A5: Yes, it can be installed at any angle.
Q6: What is the shock survivability of the sensor?
A6: It withstands up to 5000 g peak shock.
Q7: How is the device powered?
A7: It requires -24 Vdc input with a nominal bias current of 2 mA.
Q8: Is the housing waterproof?
A8: Yes, the sensor is hermetically sealed and rated equivalent to IP68.
Q9: Can I use a long cable with this sensor?
A9: Yes, up to 305 meters without signal degradation.
Q10: What material is used for the sensor body?
A10: It is made of corrosion-resistant 316L stainless steel.
Related Models (Same Series)
| Model Number | Sensitivity | Accel. Range | Output Type |
|---|---|---|---|
| 330425-02-CN | 25 mV/g | 75 g peak | Voltage |
| 330500 | 100 mV/g | 50 g peak | Voltage |
| 330525 | 25 mV/g | 75 g peak | Voltage |
| 330900 | 100 mV/g | 50 g peak | Voltage |
| 991-AXX-XX-XX | 100 mV/g | 50 g peak | Piezoelectric |
| 991-EXX-XX-XX | 25 mV/g | 75 g peak | Piezoelectric |
Popular Bently Nevada Models
| Model Number | Function | Sensitivity/Spec Highlights |
|---|---|---|
| 3500/42M | Proximitor Seismic Monitor | Shaft & casing vibration |
| 3500/44M | Aeroderivitive Vibration Monitor | GT-specific monitoring |
| 3300 XL 5mm Proximitor | Displacement Transducer | 5mm tip, proximity output |
| 990-04-XX-XX | Accelerometer | General-purpose, 100 mV/g |
| 3500/22M | Transient Data Interface (TDI) | Modbus/Communications |
| 3500/32M | 4-Channel Relay Module | Relay output for alarms |
Excellent PLC
