Bently Nevada 190501-02-00-00 Velomitor CT Velocity Transducer

The Velomitor CT Velocity Transducer is a low‑frequency version of our standard Velomitor Piezo‑velocity Sensor. Its design specifically measures casing vibration velocity on cooling tower and air‑cooled heat‑exchanger fan assemblies that operate at or above 90 rpm (100 to 300 rpm typical). This transducer can measure vibration amplitudes at these frequencies as well as the vibration frequencies generated by the fan motor and speed reducer. Common machine malfunctions (unbalance, misalignment, etc.) originate as an increase in rotor vibration. For effective machine protection, the system must transmit a significant amount of rotor vibration to the machine casing or transducer mounting location.

FEATURES:

• Low-Frequency Measurement
  Optimized for cooling tower and air‑cooled heat exchanger fans operating at 90‑300 rpm. Designed to measure casing vibration velocity on low‑speed rotating machinery where standard sensors lack low‑frequency response.

• High Sensitivity & Wide Frequency Range
  Sensitivity of 100 mV/in/s (3.94 mV/mm/s) ±5%. Frequency response from 3.0 Hz to 900 Hz (±1.0 dB), and 1.5 Hz to 1.0 kHz (±3.0 dB). Captures both low‑speed rotor vibrations and gearmesh frequencies.

• Rugged & Reliable
  Operating temperature range -40°C to +85°C, withstands 5000 g shock, 100% condensing humidity. Electronics isolated from case for reliable performance in harsh environments. Excellent linearity (±2% up to 2.5 in/s).

• Flexible Installation & Hazardous Area Options
  Available with multiple mounting stud options (this model: 3/8‑24 to 1/2‑20 stud). Choice of MIL‑C‑5015 connector or integrated cable. Agency‑approved versions (Ex ia IIC T3 / Class I, Div I) for hazardous areas.

Parameters:

Brand: Bently Nevada
Model: 190501-02-00-00
PN No.: 190501-02-00-00
Catalog: Velomitor CT
Description: Low-frequency velocity transducer for cooling tower and air-cooled heat exchanger fan vibration monitoring
Origin: USA
HS CODE: 90318090
Dimension: 82 mm (3.2 in)
Weight: Approximately < 297 g (10.5 oz)

QA:

Q1: What is the main application of the 190501 Velomitor CT?
A1: It is specifically designed for measuring casing vibration on cooling tower and air‑cooled heat exchanger fan assemblies operating at low speeds (90 to 300 rpm). It also works for any low‑speed rotating machinery.

Q2: What is the sensitivity of this transducer?
A2: The sensitivity is 100 mV/in/s (3.94 mV/mm/s) ±5%.

Q3: What frequency range does the 190501-02-00-00 cover?
A3: It covers 3.0 Hz to 900 Hz with ±1.0 dB flatness, and 1.5 Hz to 1.0 kHz with ±3.0 dB.

Datasheet Link:

Bently Nevada 190501-02-00-00 Velomitor CT Velocity Transducer Manual PDF Datasheet