EMERSON PR9268/201-000 Electrodynamic Velocity Sensor

General Description

The PR9268/201-000 is a mechanical velocity sensor designed for absolute vibration measurement in critical turbomachinery applications such as steam, gas, and hydro turbines, compressors, pumps, and fans. This sensor effectively measures case vibration, ensuring optimal performance and safety.

Sensor Specifications

Sensor Orientation:
- PR9268/20x-x00
- Vertical, ± 30° (without sinking current)
Sensitivity:
- 28.5 mV/mm/s (723.9 mV/in/s)
Frequency Range:
- 4 to 1000 Hz
Natural Frequency:
- 4.5 Hz ± 0.75 Hz @ 20°C (68°F)
Transverse Sensitivity:
- 0.13 (PR9268/20x-x00) @ 110 Hz
Vibration Amplitude (Mechanical Limit):
- 3000 µm (4000 µm) peak-to-peak
Amplitude Linearity:
- < 2%
Maximum Acceleration:
- 10 g (98.1 m/s²) peak-to-peak continuous
- 20 g (196.2 m/s²) peak-to-peak intermittent
Maximum Transverse Acceleration:
- 2 g (19.62 m/s²)
Damping Factor:
- ~0.56 @ 20°C (68°F)
- ~0.42 @ 100°C (212°F)
Resistance:
- 1875 Ω ± 10%
Inductance:
- ≤ 90 mH
Active Capacity:
- < 1.2 nF

Environmental Specifications

Operating Temperature Range:
- -20 to +100°C (-4 to 212°F)
Protection Class:
- IP55
Relative Humidity:
- 0 to 100%, Non-Condensing
Material:
- Al Mg Si Pb F 28
Cable:
- PTFE, 3x 0.5 mm²
Armor:
- Stainless Steel
Connector:
- Harting Plug Die Cast Aluminium
Weight:
- 930 g

Hazardous Area Approvals

ATEX:
- II 1G Ex ia IIC T6 Ga
- II 1G Ex ia IIC T4 Ga
- Tamb:
  - T6 (-20°C ≤ Tamb ≤ 68°C)
  - T4 (-20°C ≤ Tamb ≤ 108°C)
IEC-Ex:
- Ex ia IIC T6 Ga
- Ex ia IIC T4 Ga

Ordering Information (PR9268/XX-X-X00)

Model No.: PR9268
Measurement Type XX: 20 (Vertical)
Cable X: 1 (5m, Armored)
Cable End X: 0 (Harting Plug)

Contact Us

Phone: +86-15915488782
Email: uma@meloauto.com
WhatsApp: +8615915488782
Business Hours: 24/7 service
Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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