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The 330750 and 330752 High Temperature Velomitor Systemsensor head and integral cable are designed for hightemperature environments. This enables you to mount thesensing head on surfaces with temperatures up to +400°c(+752°F).

To accomplish this, the transducer design segregates thesensing element from the signal conditioning electronics. Thetwo are permanently connected using an integrated cable.The integrated cable eliminates connectors which are asignificant source of transducer failures.

The cable enables you to position the signal conditioningelectronics in a cooler location. The internal electronicswithstands temperatures of 55°C to +121°C (-67°F to +250°F).The integrated design makes it possible to capturemachinery performance data comparable to other BentlyNevada Velomitor transducers, but at significantly highertemperatures.

Frequently Asked Questions

What is the maximum temperature the sensor head can handle?

The sensor head is built for extreme heat and can be mounted directly onto machine surfaces up to +400°C (+752°F).

What is the temperature limit for the remote amplifier?

The remote electronics box is more sensitive and must be installed in an environment between -40°C and +121°C (-40°F to +250°F).

What is its effective frequency response range?

The system accurately tracks vibration frequencies ranging from 15 Hz to 2,000 Hz.

What are the standard mounting thread sizes for this unit?

It typically accommodates industry-standard mounting studs such as 1/4-28 UNF or M8×1.25 metric threads.

Product Applications

Power Industry (Conventional and Nuclear Power Generation): Commonly used for vibration monitoring of bearing housings in steam turbines, gas turbines, generators, and large feedwater pumps, effectively preventing serious accidents caused by machine imbalances due to high-speed operation.

Oil & Gas and Refineries: Monitors the absolute vibration of casings in large centrifugal compressors, reciprocating compressors, and heavy-duty pumps in high-temperature processes such as catalytic cracking and hydrocracking.

Steel and Metallurgical Plants: Applied to blast furnace blowers, main drive systems of hot/cold rolling mills, and rotating machinery operating in extremely high ambient temperatures, such as exhaust fans.

Cement and Building Materials Industry: Used to monitor the vibration status of bearings in large kiln drive units, clinker crushers, and high-load classifiers.