Overview
- Product No. : 330750-20
- Product Type : High Temperature Velomitor System
- Length: 2 meters
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The 330750-20 High Temperature Velomitor System sensor head and integral cable are designed for high temperature environments. This enables you to mount the sensing head on surfaces with temperatures up to +400°C (+752°F).
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To accomplish this, the transducer design segregates the sensing element from the signal conditioning electronics. The two are permanently connected using an integrated cable. The integrated cable eliminates connectors which are a significant source of transducer failures.
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Most common machine malfunctions (unbalance, misalignment, etc.) occur on the rotor and originate as an increase (or at least a change) in rotor vibration. For any individual casing measurement to be effective for overall machine protection, the system must continually transmit a significant amount of rotor vibration to the machine casing, or mounting location of the transducer.
More Parameters
| Sensitivity | 5.7 mV/mm/s (145 mV/in/s) ±5% |
| Frequency Response | 15 to 2000 Hz (900 to 120,000 cpm) ± 3.0 dB; 20 to 1000 Hz (1,200 to 60,000 cpm) ± 0.9 dB |
| Transient Temperature Sensitivity | 0.0762 mm/s/°C (0.003 in/s/°C), typical, as defined in ISO 5347-18:1993(E) |
| Transverse Sensitivity | Less than 5% of Sensitivity |
| Amplitude Linearity | ±2% to 152 mm/s (6 in/s) peak |
| Mounted Resonant Frequency | Greater than 5 kHz |
| Output Bias Voltage | -12 ±2.0 VDC |
| Broadband Noise Floor (15Hz to 2kHz) | 0.127 mm/s (0.005 in/s) rms nominal |
| Amplitude Range | 635 mm/s (25 in/s) peak below 680 Hz. 2940 m/s2 (300 g) peak above 680 Hz. Vibration at frequencies above 2 kHz decreases this range. |
Keywords: Bently Nevada 330750-20; 330750-20; 330750-20
FAQ
Q: What is the operating temperature range?
Q: How does the Velomitor work?
Q: What types of applications is it suitable for?
Q: What is the output type?
Q: Is the Velomitor easy to install?
Q: What should I do if the sensor fails to provide readings?
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