Meggitt Vibro-Meter PV686 Combined Piezoelectric Velocity Sensor and Accelerometer

Current output: 4 to 20 mA proportional to 0 to 10, 20, 25, 50 or 100 mm/s, ?25 to 90 °C, up to 1000 Hz.

Voltage output: 100 or 50 mV/g, ?25 to 90 °C, up to 10000 Hz.

The PV686 is a general-purpose piezoelectric vibration sensor with a piezoelectric sensing element and integrated electronics that combines two industry standard sensors in a single casing, namely: (1) a 4 to 20 mA loop-powered vibration sensor (vibration transmitter) with a sensitivity of 4 to 20 mA proportional to either 0 to 10, 20, 25, 50 or 100 mm/s and (2) an IEPE (integrated electronics piezo electric) vibration sensor with a sensitivity of either 100 or 50 mV/g. It is available in standard versions or Ex versions.

The PV686 is designed and manufactured for use in harsh industrial environments, including hazardous areas (potentially explosive atmospheres).

FeaturesDesigned for general-purpose vibration measurement, typically balance of plant (BOP) machinery such as compressors, gearboxes, motors, pumps and fansCombined industry standard 4 to 20 mA loop-powered vibration sensor (vibration transmitter) and IEPE (integrated electronics piezo electric) vibration sensor in a single casingQuasi-static output signal (4 to 20 mA proportional to 0 to 10, 20, 25, 50 or 100 mm/s) indicating ‘overall’ vibration and dynamic voltage output signal (100 or 50 mV/g) suitable for spectral analysisSupports protection/monitoring and control applications with a single deviceIP67 protection rating

PARAMETER

VALUE (IMPERIAL | METRIC)

Output type

Current loop (4 to 20 mA) and voltage (one)

Sensitivity

4 to 20 mA proportional to 0 to 10, 20, 25, 50 or 100 mm/s and 100 or 50 mV/g

Operating temperature range

?13 to 194 °F | ?25 to 90 °C

Frequency response

2 to 1000 Hz and 2 to 10000 Hz

Sensitivity tolerance

±5%

Dynamic measurement range

Up to 50 g and 80 or 160 g

Linearity

<1% up to full scale

Transverse sensitivity

<5%

Resonant frequency

Value TBC

Type of electronics

Integrated

Hazardous area certifications

Pending