General Errors | 59
Code Description and Probable Causes
*05cr
A/D input is saturated
This error indicates the light signal level reached full scale A/D
output (65,535) for a particular channel (c = 0 for the
reference channel and c = 1 for the measurement channel)
and for a particular readset r = 1–6 or self-test wavelength r
= 0–5
Probable causes:
• The order sort filter is not at the correct position and
too much light is present.
• The measurement or reference diode PCB or
connection to it is defective.
• The A/D circuitry on the Main PCB is defective.
*0600
Gain Calibration error
This error indicates that the measurement channel signal gain
has reached its maximum or the signal itself is greater than
60000 at the wavelength being calibrated. This normally
occurs only during a factor gain calibration procedure.
*0700
*0710
Reference channel failed noise test greater than 20
counts.
Measurement channel failed noise test greater than 20
counts.
This error indicates significant variations in background
electronic noise were detected, when blocking the light and
increasing the gain to maximum.
Probable causes:
• Electrical noise may be penetrating the measurement
chamber. The bottom and top shrouds are part of the
electrical shielding.
• There may be an ambient light leak. Ensure that the
plate carrier door is properly closed.
• Detector PCB or connection failure.
• Internal electronic noise may be caused by a faulty
analog PCB or faulty internal grounding.
Epoch Operator’s Manual
To Next Page
Loading...
