x
Be rated for temperatures above expected discharge temperatures during operation.
9.4.3 Visual Indicators of Temperature and Pressure
Good systems employ local display of the temperature, pressure or vacuum.
Location of measurement devices should be at or near the
port openings of rotary blower.
Limits should be displayed on visual indicators for quick assessment of the operating
condition.
9.4.4 Monitoring Device switches
For safest operation, the operating parameters (temperature and differential pressure) of the
unit should be continuously monitored to be sure that they are within the limits set by the
manufacturer.
The most important parameter to monitor is discharge
temperature.
Because it may take a gauge some time to respond to a change in temperature, sensitive
applications should directly monitor the pressure differential.
When a parameter falls out of its limits, corrective action should be quickly initiated to
reduce the air resistance or reduce the rotational speed of the rotary blower.
For best results, the measuring devices should trigger the motor controls to immediately
shut down the motor.
9.4.5. Noise reduction
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