330750-80-CN | Bently Nevada High Temperature Velomitor System

in stock#

Brand/ Manufacturer:
Bently Nevada
Dimensions:
34x23x4cm
Weight:
0.7kg
Country of Origin: :
USA
Description:
Bently Nevada 330750-80-CN High Temperature Velomitor System

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Mfr. Part Number:	330750-80-CN

Manufacturer:	Bently Nevada

Description:	Bently Nevada 330750-80-CN High Temperature Velomitor System

Full Description:	The 330750 High Temperature Velomitor System sensor head and integral cable are designed for high temperature environments.

Status:	In stock

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Moore Automation Limited is not affiliated with or a distributor for Bently Nevada. The depiction, description, or sale of products featuring names, trademarks, brands, and logos is for identification and/or reference purposes only and does not indicate any affiliation with or authorization by any rights holder.

Product Description:

The Bently Nevada 330750-80-CN is a specific configuration of the High Temperature Velomitor System (HTVS), designed to monitor casing vibration on rotating machinery operating in extreme thermal conditions.The 330750 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).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.

Application:

Gas Turbines: Measures casing vibration along the high-temperature hot gas paths and exhaust areas of combustion turbines.
Steam Turbines: Continuously monitors high-pressure (HP) turbine bearing housings and steam chest casings prone to extreme thermal stress.
Combined-Cycle & Co-generation Plants: Used on heat recovery steam generators (HRSGs) and ancillary rotating machinery operating in high-heat zones.
Process Compressors: Monitors critical centrifugal and axial compressors that handle hot process gases.

Frequently Asked Questions (FAQ)

Q:Can I extend the cabling from the conditioning electronics to a control room?

A:Yes. You can route standard armored interconnect cabling (such as part number 84661-33) from the electronics housing to your monitoring rack. The maximum total allowable cable length between the sensor electronics and the monitor is 305 metres (1,000 feet) without experiencing signal degradation.
Q:Which Bently Nevada monitors are compatible with the 330750?
A:It interfaces directly with standard rack-mounted systems like the Bently Nevada 3500 Series or older 3300 Series machinery protection systems.

Q:Does this system require external power?
A:No, the Velomitor is a self-generating velocity sensor. It converts dynamic mechanical vibration directly into an electrical signal without needing an external excitation voltage.

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Detailed Parameter	Part Number330750-80-CN
Length	8 meters
Sensitivity	5.7 mV/mm/s (145 mV/in/s) ±5%
Transverse Sensitivity	Less than 5% of Sensitivity
Amplitude Linearity	±2% to 152 mm/s (6 in/s) peak
Output Bias Voltage	-12 ±2.0 VDC
Electronics	-55°C to +121°C (-67°F to +250°F)
Shock Survivability	24,535 m/s2 (2500 g) peak

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