Bently Nevada 3300/50, Operation Manual

Page: 93 / 122

Tachometer Maintenance
27 I S E L F TEST
83871-01
THE MONITOR HAS THREE LEVELS OF SELF TESTS:
POWER-UP TEST: PERFORMED ONLY WHEN THE MONITOR IS TURNED ON.
CYCLIC TEST: PERFORMED CONTINUOUSLY.
USER-INVOKED TEST: PERFORMED ONLY WHEN INITIATED BY USER.
1 3 0 0 / 5 0
TACHOMETER
WARNING
ONE S E C O N D D E L AY
ON P P M S E Y P O I N T S
(XI N O T U S E F O R
ovERSPEED
PROTECTION
SEE MANUAL
2
A
BUFFERED TRANSDUCERS
IF ERRORS ARE DETECTED DURING CYCLIC SELF TESTS:
MONITORING IS ABORTED UNTIL THE ERROR IS
RESOLVED.
ERROR CODE IS STORED IN MEMORY AND FLASHED
ON THE LCD DISPLAY.
BYPASS LED GOES ON AND OK LED FLASHES AT 5
HZ.
IF ERROR IS INTERMITTENT AND GOES AWAY,
MONITORING IS RESUMED AND OK LED FLASHES AT
5 HZ.
ERROR CODE IS STORED. USER INVOKED-TEST
DISPLAYS AND CLEARS ERROR.
IF ERRORS ARE DETECTED DURING POWER-UP TEST OR USER-
INVOKED SELF TEST:
MONITORING IS ABORTED UNTIL USER ACTION
RESOLVES PROBLEM.
TEST CAN BE RERUN WITH MONITOR POWER-UP OR
USER-INVOKED TEST.
4S