Bently Nevada 190501-12-00-01 Low-frequency velocity transducer (“Velomitor CT”)

FAQ

Q1: What is the 190501-12-00-01 transducer used for?
A1: It is a Velomitor CT low-frequency velocity transducer designed to monitor casing vibration on cooling towers, air-cooled fans, and similar low-speed rotating systems.

Q2: What sensitivity does it provide?
A2: The device provides about 3.94 mV per mm/s of velocity (≈ 100 mV per in/s), with ±5 % tolerance.

Q3: Over what frequency band does this variant operate?
A3: The transducer maintains ±1 dB response from 3 Hz to 900 Hz, and ±3 dB response from 1.5 Hz up to 1.0 kHz.

Q4: What is the maximum usable cable length?
A4: Up to 305 m (1,000 ft) of cable can be used without significant signal degradation.

Q5: What are the environmental ratings?
A5: It operates in temperatures from –40 °C to +85 °C and can be stored from –40 °C to +100 °C.

Q6: What safety or hazardous-area certifications does it carry?
A6: It supports intrinsic safety (Ex ia IIC T4 Ga) and non-arcless (Ex nA IIC T4) certifications, as well as relevant Class I Division 1/2 approvals depending on installation.

Q7: What physical dimensions and weight does it have?
A7: The typical height is 82 mm, with a mounting diameter of 33 mm, and the device weighs under 297 g.

Q8: What mounting options are available?
A8: It supports mounting via standard studs (¼-28 or MIL type), plate or adhesive mounts, and adapters for machine housings.

190501-12-00-01 Bently Nevada

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