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1
Introduction
Status LEDs
Thermo Scientific
Accela PDA Detector Hardware Manual
7
Status LEDs
Four status LEDs labeled Power, Communication, Run, and Lamps are located on the left
door of the detector (see
).
lists the status LEDs and their meaning.
Figure 7.
Accela PDA Detector status LEDs
Table 1.
Status LEDs and meanings
LED
State
Meaning
Power
Green
The detector is turned and has downloaded the
operational file.
Amber
The detector is turned on but has not yet downloaded the
operational file from the data system computer.
Comm
Green
Communication to the data system PC has been
established.
Amber
There is no communication with the data system.
Run
Green
The detector is ready for a run.
Flashing green
A run is in progress and the detector is sending data to the
data system computer.
Amber
The PDA detector is not ready to start a run for one of
these reasons:
• A valid method has not been downloaded (following
power on).
• Both lamps are off, or one of the lamps is failing to
turn on.
• The lamp or wavelength calibration is not valid.
Flashing amber
The PDA detector is in an error state while in the
Run mode.
Lamps
Green
One or both lamps are turned on.
Amber
The lamps are off or the D2 lamp is starting. The
D2 lamp takes approximately 30 seconds to turn on.
Power
Communication
Run
Lamps