PV685 piezoelectric velocity sensor
- Designed for general-purpose vibration measurement, typically balance of plant (BOP) machinery such as compressors, gearboxes, motors, pumps and fans
- Industry standard 4 to 20 mA loop-powered vibration sensor (vibration transmitter)
- Quasi-static output signal (4 to 20 mA proportional to 0 to 20, 0 to 25, or 0 to 50 mm/s) indicating “overall” vibration
- Typically connected to a machinery monitoring system for protection applications and/or a control system such as a DCS or PLC for monitoring and/or control applications
- IP68 protection rating
Description
Current output signal: 4 to 20 mA proportional to 0 to 20, 0 to 25, or 0 to 50 mm/s.
Frequency response: up to 1000 Hz.
Temperature range: −55 to 90°C.
The PV685 piezoelectric velocity sensor is a general-purpose industry standard 4 to 20 mA loop-powered vibration sensor (vibration transmitter) with a piezoelectric sensing element, integrated electronics and a current output. It is available with a sensitivity of 4 to 20 mA proportional to either 0 to 20, 0 to 25 or 0 to 50 mm/s.
The PV685 is available as a sensor only or fitted with an integral cable that is protected by a stainless-steel overbraid. Sensor only versions allow one of a range of different cable assemblies to be used to connect the sensor to the monitoring system, depending on the application and environment.
The PV685 is designed and manufactured for use in harsh industrial environments.
Features
- Designed for general-purpose vibration measurement, typically balance of plant (BOP) machinery such as compressors, gearboxes, motors, pumps and fans
- Industry standard 4 to 20 mA loop-powered vibration sensor (vibration transmitter)
- Quasi-static output signal (4 to 20 mA proportional to 0 to 20, 0 to 25, or 0 to 50 mm/s) indicating “overall” vibration
- Typically connected to a machinery monitoring system for protection applications and/or a control system such as a DCS or PLC for monitoring and/or control applications
- IP68 protection rating
Additional information
| Output type | Current loop (4 to 20 mA) |
|---|---|
| Sensitivity | 4 to 20 mA proportional to 0 to 20, 0 to 25, or 0 to 50 mm/s |
| Operating temperature range | −55 to 90°C (−67 to 194°F) |
| Frequency response | 3 to 1000 Hz |
| Sensitivity tolerance | ±5% |
| Dynamic measurement range | 20, 25 or 50 mm/s RMS |
| Linearity | ±1% |
| Transverse sensitivity | <5% |
| Resonant frequency | 21 kHz |
| Type of electronics | Integrated |
The following downloads are available for this product:
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