product description 

Product details

Electro-dynamic speed sensors are mechanical speed sensors designed for absolute vibration measurement in key turbomachinical applications such as steam, gas and hydraulic turbines, compressors, pumps and fans to measure the vibration of machine housings.

Sensor direction:

PR9268/01x-x00: omnidirectional type

PR9268/20x-x00: Vertical, ±60°

PR9268/30x-x00: horizontal, ±30°

PR9268/60x-000: Vertical direction, ±30° (no lifting current); Vertical direction, ±60° (with lifting current)

PR9268/70x-000: horizontal direction, ±10° (no lifting current); Horizontal direction, ±30° (with lifting current)

Dynamic performance (PR9268/01x-x00) :

Sensitivity: 17.5 mV/mm/s

Frequency range: 14 to 1000Hz

Natural frequency: 14Hz ± 7% @ 20°C (68°F)

Transverse sensitivity: < 0.1@80Hz

Vibration amplitude: 500µm peak-to-peak value

Amplitude linearity: < 2%

Maximum acceleration: 10g (98.1m /s²) peak-to-peak value continuous; 20g (196.2 m/s²) peak-to-peak interval

Maximum lateral acceleration: 2g (19.62 m/s²)

Damping coefficient: ~0.6% @ 20°C (68°F)

Resistance: 1723Ω ± 2%

Inductance: ≤ 90 mH

Effective capacity: < 1.2nF

Dynamic performance (PR9268/20x-x00 & PR9268/30x-x00) :

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)

Lateral sensitivity: 0.13 (PR9268/20x-x00) @110Hz; 0.27 (PR9268/30x-x00) @110Hz

Vibration amplitude (mechanical limit) : 3000µm (4000µm) peak-to-peak value

Amplitude linearity: < 2%

Maximum acceleration: 10g (98.1m /s²) peak-to-peak value continuous; 20g (196.2 m/s²) peak-to-peak interval

Maximum lateral acceleration: 2g (19.62 m/s²)

Damping coefficient: ~ 0.56@20 °C (68°F); ~0.42 @ 100°C (212°F)

Resistance: 1875Ω ± 10%

Inductance: ≤ 90 mH

Effective capacity: < 1.2nF

Dynamic performance (PR9268/60x-000 & PR9268/70x-000) :

Sensitivity: 22.0 mV/mm/s ± 5% @ pin 3,100Ω load; 16.7mV /mm/s ± 5%@ pin 1, 50ω load; 16.7mV /mm/s ± 5%@ Pin 4, 20ω load

Frequency range: 10 to 1000Hz

Natural frequency: 8Hz ± 1.5Hz @ 20°C (68°F)

Lateral sensitivity: 0.10@80Hz

Vibration amplitude (mechanical limit) : 3000µm

With its accurate dynamic measurement capabilities and high reliability, this sensor is an indispensable measurement tool in critical turbomachinery applications. Whether it is steam, gas or hydraulic turbine, it can accurately monitor its vibration through the sensor, which provides important data support for the health monitoring and fault warning of the machinery.

Product Parameter

Model Number: PR9268/303-000

Origin:USA

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