Introduction
The model 990-05-50-01-00 is a Low-Frequency Velomitor® Series Piezoelectric AC Accelerometer from PCB Piezotronics. This industrial-grade vibration sensor is specifically engineered for applications requiring excellent low-frequency response. The "50" in the model number specifies a sensitivity of 500 mV/g, and the "01-00" suffix defines the electrical connector and mechanical configuration. This high-sensitivity accelerometer outputs a raw AC voltage signal proportional to acceleration, making it ideal for monitoring slow-speed machinery and structural vibrations where low-frequency components are dominant. Its rugged, stainless steel construction ensures reliability in harsh industrial environments.
Parameters / Specifications
The following table outlines the key technical parameters for the 990-05-50-01-00 accelerometer.
| Parameter | Specification |
|---|---|
| Model Number | 990-05-50-01-00 |
| Description | Low-Frequency, AC-Coupled, Industrial IEPE Accelerometer (500 mV/g) |
| Physical Dimensions | Approx. 65 mm (2.56 in) height x 29 mm (1.14 in) diameter (hex) |
| Weight | Approx. 170 grams (6.0 oz) |
| Measurement | Dynamic Acceleration & Vibration |
| Output Signal | AC Voltage (IEPE/ICP® compatible) |
| Sensitivity | 500 mV/g (±10%) |
| Frequency Range | 0.5 to 4,500 Hz (±3 dB) |
| Low-Frequency Cutoff (-5%) | Typically 0.3 Hz |
| Dynamic Range | ±10 g Peak |
| Power Supply | 18 to 30 VDC, 2 to 20 mA constant current IEPE/ICP® |
| Electrical Connection | 10-32 coaxial connector, top exit |
| Housing Material | Stainless Steel |
| Operating Temperature | -55°C to +120°C (-67°F to +248°F) |
*Note: The "50" sensitivity code (500 mV/g) and the extended low-frequency response (down to 0.5 Hz) are the key identifiers for this sensor's performance. The dimensions and weight are representative and may vary slightly. Always confirm the full model number for exact specifications.*
Application Scenarios
The 990-05-50-01-00 accelerometer is specialized for applications involving low-frequency vibration and slow-speed machinery.
Low-Speed Machinery Monitoring:
Ideal for monitoring very slow-speed rotating equipment such as kilns, large dam gates, draglines, and heavy-duty conveyors in mining and mineral processing, where the fundamental vibration frequency is extremely low (below 2 Hz or 120 CPM).
Structural Vibration Monitoring:
Used to monitor absolute vibration on large structures that vibrate at very low frequencies, such as wind turbine towers, bridges, buildings, and large industrial frames and foundations.
Hydroelectric Turbine Monitoring:
Excellent for monitoring vibrations on large hydroelectric turbines and generators, which operate at very low speeds (e.g., 60-120 RPM) and generate low-frequency vibrations.
Predictive Maintenance (PdM) on Heavy Industry Assets:
Permanently mounted on critical, slow-speed assets in pulp and paper, cement, and metal processing plants to collect vibration data for trend analysis and early fault detection of gearboxes and large bearings.
Seismic and Micro-Vibration Measurements:
Suitable for applications requiring detection of very subtle vibrations and motions due to its high sensitivity and exceptional low-frequency performance.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
