083730510A DCN8172
Teledyne API T500U CAPS NO
2
Analyzer with NumaView™ Software
97
This allows the technician to observe systematically the effect of directly controlling these
signals on the operation of the analyzer. Use the Utilities>Diagnostics menu to view the
raw voltage of an input signal or the Setup menu to control the state of an output voltage
or control signal.
U
SING THE
A
NALOG
O
UTPUT
C
HANNELS
Signals available for output over the analyzer’s analog output channel (configured in the
Setup>Analog Outputs menu; see Section 2.5.8) can also be used as diagnostic tools
through the Utilities>Diagnostics menu.
U
SING THE
I
NTERNAL
E
LECTRONIC
S
TATUS
LED
S
Several LEDs are located inside the instrument to assist in determining if the analyzer’s
CPU, I
2
C bus and Relay PCA are functioning properly.
CPU STATUS INDICATOR
DS5, a red LED located on the motherboard (Figure 5-8), flashes when the CPU is running
the main program loop. After power-up, approximately 30 – 60 seconds, DS5 should flash
on and off. If the front panel displays properly but DS5 does not flash, then the program
files have become corrupted, contact Teledyne API's Technical Support Department (see
Section 5.9) because it may be possible to recover operation of the analyzer. If after 30 –
60 seconds, neither DS5 is flashing nor does the front panel display properly then the CPU
is bad and must be replaced.
Motherboard
CPU Status LED
Figure 5-8. CPU Status Indicator
RELAY PCA WATCHDOG AND STATUS LEDS
There are sixteen LEDs located on the Relay PCA (some are not used on this model). The
most important of the LEDs is D1 (see Figure 5-9), which indicates the health of the I
2
C
bus.
Содержание T500U
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