990-08-XX-01-00 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-08-XX-01-00
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 990-08-XX-01-00 Vibration Transmitter delivers a 4–20 mA proportional vibration signal for centrifugal air compressors, small pumps, motors, and fans. Designed for automation, it accepts a single 3300 NSv Proximity Probe with extension cables up to 7 meters. Operating from +12 to +35 Vdc, the two-wire loop-powered 990-08-XX-01-00 provides a linear Prox Out range of 0.25–1.65 mm (10–65 mils) with 10 kΩ output impedance. Its full-scale option spans 0–8 mils pp (0–200 μm pp). The transmitter features integrated Proximitor Sensor, non-interacting zero and span potentiometers, and a Test Input pin for quick loop signal verification. The Not OK/Signal Defeat circuit avoids false alarms from probe faults. Mounting is simplified with 35 mm DIN rail clips or bulkhead screws. Potted construction allows operation in -35°C to +85°C environments and storage from -52°C to +100°C. Leadwire supports up to 3 meters (10 feet) to the BNC connector for diagnostics. The 990-08-XX-01-00 enables precise vibration monitoring and direct control system input, ideal for automation in confined machinery spaces.

Applications

Large power plants: Widely used for monitoring shaft vibration in auxiliary rotating equipment (such as large blowers and feedwater pumps) of generator sets, large steam turbines, or gas turbines.

Metallurgical and steel plants: Used for monitoring the power systems of large cooling fans, sintering fans, and rolling equipment.

Petrochemical and fertilizer plants: In these plants, it is often used to monitor non-core but critical centrifugal compressors, pumps, and motors.

Utilities and water treatment: Used for continuous status monitoring of large industrial water pumps or aeration systems.

Specifications

Competitive Advantage

Quick Loop Signal Verification
The Test Input pin on 990-08-XX-01-00 supports direct function generator testing, allowing engineers to validate loop output in under a minute, reducing commissioning time.

Prevent False Alarms
990-08-XX-01-00 features a Not OK/Signal Defeat circuit, which blocks high outputs from faulty proximity probes, avoiding unnecessary alarms and control system disruptions.

Flexible Mounting in Confined Spaces
DIN rail clips or bulkhead screws allow 990-08-XX-01-00 to be installed in compact spaces with minimal clearance, ideal for centrifugal air compressors and small motors.

Durable Operation in Harsh Conditions
Potted construction permits operation from -35°C to +85°C (-31°F to +185°F) and storage from -52°C to +100°C (-62°F to +212°F), enabling 990-08-XX-01-00 to perform reliably in high-humidity and extreme temperature environments.