Bently 3500/22M (front panel 288055-01 146031-01 rear back panel) card

Description

288055-01 Instantaneous Crossover

The value for shaft rotative speed where the direct eccentricity

measurement changes from Direct Max/ Direct Min to instantaneous gap.

The value for Instantaneous Crossover must be between 1 and 10 rpm.

Gap

288055-01 The physical distance between the face of a proximity probe tip and the

observed surface. The distance is expressed in terms of voltage. Standard

polarity convention dictates that a decreasing gap 288055-01 results in an increasing

(less negative) output signal.

288055-01 The value that a proportional value goes to when that channel or

proportional value is bypassed or defeated (For example when a problem

occurs with the transducer). The selected value can be between the

minimum and maximum full-scale range values. Only the values available

from the Recorder Outputs, Communication Gateway and Display

Interface Module are clamped to 288055-01 the specified value when the proportional

value is invalid.

Recorder Output

The proportional value of a channel that is sent to the 4 to 20 mA recorder.

The recorder output is proportional to the measured value over the

channel full-scale range. An increase in the proportional value that would

be indicated as upscale on a bar graph display results in an increase in the

current at the recorder output. If the channel is Bypassed, the output will

be clamped to the selected clamp value or to 2 mA (if the 2 mA clamp is

selected).

Delay

288055-01 The time which a proportional value must remain at or above an over alarm level

or below an under alarm level before an alarm is declared as active.

Alert

First level alarm that occurs when the transducer signal level exceeds the

selected Alert/Alarm 1 setpoint. This setpoint can be set on the Setpoint

screen. The Alert time delay is always set at one second intervals (from 1

to 60) for all available proportional values.

Danger

Second level alarm that occurs when the transducer signal level exceeds

the selected Danger/Alarm 2 setpoint. This setpoint can be set on the

Setpoint screen.

100 ms option

The 100 ms (typical) option applies to the Danger time delay only and

has the following results:

– If the 100 ms option is off ( ):

– The Danger time delay can be set at one second intervals (from 1 to

60).

– The Danger time delay can be set for any two available proportional

values.

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