Category: Bently

Description

The 1900/65A General Purpose Equipment Monitor is designed for the continuous monitoring and protection of equipment used in a variety of applications and industries.

The monitor is cost effective and is the ideal solution for general purpose machines and processes that benefit from continuous monitoring and protection.

Inputs

The 1900/65A provides four sensor inputs and four temperature inputs.

Each sensor input can be configured by the software to support 2-wire and 3-wire accelerometers, velocity sensors or proximity sensors.

Sensors or proximity sensors. Each temperature input supports E, J, K, and T type thermocouples as well as 2-wire or 3-wire RTDs.

SPECIFICATIONS

Inputs

Sensor Inputs

Channels 1 through 4 can be configured by the user to accept inputs from acceleration, velocity, or displacement sensors.

Inputs for Acceleration, Velocity, or Displacement Sensors

Sensor Channel Types

The channel type defines the processing function applied to the input signal and the type of variable or measurement value derived from that input.

The channel type also defines the type of sensor that must be used. Sensor channel types include

Acceleration or Reciprocating Acceleration

Velocity or Reciprocating Velocity

Radial vibration (shaft vibration)

Thrust (axial displacement)

Position

Velocity

Acceleration and Reciprocating Acceleration Channel Types

The Acceleration channel type and Reciprocating Acceleration channel type support dual and triple wire accelerometers.

The Reciprocating Acceleration channel type has Timing Determination Channel Failure disabled.

Acceleration Variables and Reciprocating Acceleration Variables

The Acceleration Variable and Reciprocating Acceleration Variable are measurements that are filtered and processed from the raw sensor signal.

The Acceleration channel type and Reciprocating Acceleration channel type can continuously process up to four variables per channel. Up to four variables per channel can be processed continuously.

Vibration : Up to three bandpass filtered amplitude measurements.

Acceleration Envelope:

The user can apply the acceleration envelope algorithm to an acceleration or reciprocating acceleration variable.

Bias Voltage: The user can assign a sensor bias voltage value to any variable.

Description

The Bently Nevada Seismic Probe Velocity Sensor System is designed to measure absolute vibration (relative to free space) of a bearing housing, enclosure, or structure.

The two-wire system consists of a transducer and appropriate cable.

The Seismoprobe series of velocity sensors is a two-wire design using moving coil technology.

It provides a voltage output proportional to the vibration velocity of the sensor.

Moving coil sensors are less sensitive to shock or pulse excitation than solid state velocity sensors.

Solid-state velocity sensors are themselves accelerometers with embedded integrated electronics.

Moving coil sensors are less sensitive to shocks or pulsed excitation and are a good choice for some applications.

Portable measurement applications are facilitated by the fact that no external power supply is required.

Available Types

There are two types of seismic probe velocity sensors:

l 9200: The 9200 is a two-wire sensor suitable for continuous monitoring or periodic measurements with test or diagnostic instruments.

When ordered with the optional integrated cable, the 9200 offers excellent corrosion resistance without the need for an additional cable.

l 74712: The Model 74712 transducer can be used for dcs-sis.com continuous monitoring or periodic measurements with test or diagnostic instruments.

l 74712: The 74712 is the high temperature version of the 9200.

Interconnecting cables can be used to connect 9200 and 74712 sensors to other instruments.

Other Instruments. These cables are available in various lengths, with or without stainless steel armour.

When ordering the 9200 and 74712 Seismic Probe Velocity Sensors, expect approximately six weeks lead time.

Approximate lead time is six weeks. Lead times vary depending on component availability and configuration.

For estimated lead times for specific orders, contact your local Bently Nevada representative.

SPECIFICATIONS

Unless otherwise noted, specifications are for machine enclosure vibration of 25 mm/s (1 in/s) at 100 Hz (6000 cpm) with a 10 kΩ load at approximately +22°C (+72°F).