Bently Nevada 3300/50, Руководство по эксплуатации

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Tachometer Operation
LED DISPLAY
ALERT
ZERO SPEED R P M
CONDITION
RELAY DRIVE
ALERT
ZERO SPEED R P M
• 0
THE ZERO SPEED ALERT CONDITIONS HAVE BEEN
MET. *
ON OFF
0 •
THE RPM ALERT CONDITIONS HAVE BEEN MET. * *
OFF ON
•
•
BOTH THE ZERO SPEED AND RPM ALERT
CONDITIONS HAVE BEEN MET. * * * ON ON
0
THE ZERO SPEED ALERT CONDITIONS HAVE BEEN
MET. ZERO SPEED IS THE FIRST OUT ALERT. * * *
ON OFF
0
0
THE RPM ALERT CONDITIONS HAVE BEEN MET.
THE RPM ALERT IS THE FIRST OUT ALERT, * * *
OFF ON
33870-01
12 ALERT (ZERO SPEED TACHOMETER)
DO N O T U S E F O R
O12P3PtEr.,
P R o r e C T IOM
SEE MANUAL
TRIGGER O 3
OK
OFF B E L 01/ t R P M
•
E
D 0
ALERT • R
P
BYPASS 0 M
* THE ZERO SPEED ALERT CONDITIONS ARE AS FOLLOWS:
1. THE TRIGGER OK CONDITIONS (SECTION 7) MUST BE MET FOR BOTH TRANSDUCERS BELOW 500 RPM.
2. BOTH TRANSDUCERS MUST OBSERVE THE ROTOR SPEED (RPM) FALL BELOW THE ZERO SPEED ALERT
SETPOINT FOR AT LEAST ONE SECOND.
** AN RPM ALERT REQUIRES AT LEAST ONE TRANSDUCER TO OBSERVE THE ROTOR SPEED (RPM) RISE ABOVE
AN OVER SPEED SETPOINT OR FALL BELOW AN UNDER SPEED SETPOINT FOR AT LEAST ONE SECOND.
*** FIRST OUT RESOLUTION IS BETTER THAN 50 MILUSECONDS. IF TWO ALERTS OCCUR WITHIN 50 MILLISECONDS
OR LESS, BOTH LEDS COULD FLASH. BOTH ALERTS MAY FLASH TO INDICATE FIRST OUT FOLLOWING SELF TEST.
14
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