EPRO PR9268/301-000 Electrodynamic Velocity Sensor
The electro-dynamic transducers PR9268/301-000 serve the measurement of absolute vibrations. They operate on the seismic measurement principle. A measuring coil, suspended on membrane springs, is the seismic mass of the transducer. By operating the transducer above the resonance frequency, the seismic mass will remain at rest. The relative motion between the transducer housing (moving with the measuring object) and the resting coil generates a voltage signal proportional to the vibration velocity.
A robust construction and a splash-proof housing permit the use of the transducer in hostile environments with temperatures up to 100°C, it is suitable for use in explosive hazardous areas. The transducer PR9268/301-000 is designed for the horizontal measurement direction (90° position). Without a lifting/sinking current, the maximum admissible deviation from the nominal position is ±10° in positive and negative direction.
The transducers PR9268/301-000 may only be operated with devices that are supplied with safety low voltage (24 V). For this reason, a power supply unit is required that meets the specifications of LPS (Low Power Source) according the EN/IEC 60950−1 or LV/LC (Low Voltage/Low Current) according the EN/IEC 61010−1. In addition, care should be exercised in the physical installation of the sensor. Wrong polarity and/or improper installation can result in false signals, which do not represent actual measured quantities.
Dynamic Performance
| Sensitivity |
28.5 mV/mm/s (723.9 mV/in/s) |
| Frequency Range |
4 to 1000Hz |
| Natural Frequency |
4.5Hz ± 0.75Hz @ 20°C (68°F) |
| Transverse Sensitivity |
0.13 (PR9268/20x-x00) @ 110Hz |
| Vibration Amplitude (Mechanical Limit) |
3000μm (4000μm) peak-peak |
| Amplitude Linearity |
< 2% |
| Maximum Acceleration |
10g (98.1 m/s2) peak-peak continuous
20g (196.2 m/s2) peak-peak intermittent |
| Maximum Transverse Acceleration |
2g (19.62 m/s2) |
| Damping Factor |
~0.56 @ 20°C (68°F)
~0.42 @ 100°C (212°F) |
| Resistance |
1875Ω ±10% |
| Inductance |
≤ 90 mH |
| Active Capacity |
< 1.2 nF |
100% brand new and original,All the goods will be tested before shipment.
For the in stock items, we will send the order out within 5-7 days after receive the payment.
Global supplier of quality automation and control components.
Topteng offers a 12-month warranty from the date of delivery.
In the event of non-conforming product ( if damaged or incorrect product is received ),
Any nonconformity must be reported within 7 days of receipt of goods.
Questions? Call +86 18050017653 or Email sales4@nseauto.com
