Bruker BLAH500 E, Operating & Service Manual

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Operating & Service Manual Version 002 BRUKER BIOSPIN 15 (51)
4
Operation 4
Front Panel Description 4.1
The BLAH500 E Amplifier 700-900MHz front panel is provided with 12 indicators
for status monitoring, 7 RF connectors, 1 interface connector and 1 line switch.
Indicators 4.1.1
Normal operation is indicated when following LED's are ON.
Table 4.1. Indicators Assignment
+32V Indicates that the +32V supply is applied.
+15V Indicates that the +15V supply is applied.
-15V Indicates that the -15V supply is applied.
+3,3V Indicates that the +3,3V supply is applied.
Overdrive Indicates when the peak power limit has been reached.
Duty Cycle (D.C.) Indicates when the duty cycle limit has been reached.
Pulse Width (P.W.) Indicates when the pulse width limit has been reached.
Mismatch Indicates when the max. reflected power limit has been reached.
RF POW. FLT Indicates when one of the above limits has been reached.
Overheat Indicates that the thermistor located on the RF module heatsink has sensed
excessive heatsink temperature. The amplifier is blanked until an accepable
temperature is reached. The function is self-resetting and no maintenance is
needed.
Indicates also that a fan on the assembly stops turning. The amplifier is
blanked until fans are changed.
H500 ON Indicates when the RF Power is present on the Solid output.
H50 ON Indicates when the RF Power is present on the High Resolution output.