Description
Product Description
The PR9268/617-100 by Emerson is a robust electrodynamic velocity sensor designed for precise vibration monitoring of critical turbomachinery. It is engineered to deliver accurate case vibration measurements on steam, gas, and hydro turbines, as well as compressors, pumps, and fans, even under challenging operating conditions.
Sensor Orientation Options
-
PR9268/01x-x00: Omnidirectional
-
PR9268/20x-x00: Vertical ±60°
-
PR9268/30x-x00: Horizontal ±30°
-
PR9268/60x-000: Vertical ±30° (without lifting current) / Vertical ±60° (with lifting current)
-
PR9268/70x-000: Horizontal ±10° (without lifting current) / Horizontal ±30° (with lifting current)
Dynamic Performance (PR9268/01x-x00)
| Parameter |
Specification |
| Sensitivity |
17.5 mV/mm/s |
| Frequency Range |
14–1,000 Hz |
| Natural Frequency |
14 Hz ±7% at 20°C (68°F) |
| Transverse Sensitivity |
<0.1 at 80 Hz |
| Vibration Amplitude |
500 μm peak-to-peak |
| Amplitude Linearity |
<2% |
| Maximum Acceleration |
10 g continuous, 20 g intermittent (peak-to-peak) |
| Maximum Transverse Acceleration |
2 g |
| Damping Factor |
~0.6% at 20°C (68°F) |
| Resistance |
1,723 Ω ±2% |
| Inductance |
≤90 mH |
| Active Capacitance |
<1.2 nF |
Applications
-
Monitoring critical rotating machinery including turbines, compressors, and pumps
-
Condition-based maintenance and predictive monitoring
-
Vibration analysis for machinery protection and diagnostics
FAQ
Q: Can the sensor handle high-transverse accelerations?
A: Yes, the PR9268/617-100 supports up to 2 g transverse acceleration while maintaining accurate measurements.
Q: How does this model differ from PR9268/01x-x00?
A: While sharing similar sensitivity and frequency response, the PR9268/617-100 supports higher operational versatility with multiple sensor orientation options and lifting current configurations.
