Biotek ELx808, Operator'S Manual

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| Chapter 6: Error Codes
Overview
An error code that appears on the display of the ELx808 (during instrument control of the
reader), or in Gen5 software (during PC control of the reader) is displayed as a four-digit
identifier. The first digit will be 0, 1, 2, or A.
•
0, 1, or 2 denote a noncritical or “General” error, which means that it is still
possible for the ELx808 to communicate with the controlling software and run
the reader system test. See
Error Codes (General) beginning on page 117.
• A denotes a more serious error with the memory or processing, which requires
that the ELx808 be turned off and then powered up before any diagnostics can
be performed. If the error reappears, call BioTek TAC for troubleshooting
assistance (see Chapter 1). See
Error Codes (Fatal) on page 121.
Diagnostics
If an error code is displayed, a System Self-Test should be conducted for diagnostic
purposes. Refer to the following
brief instructions for performing the Self-Test:
•
From the Main Menu screen on the ELx808 display, select UTIL > TESTS
> SYSTEM
.
• In Gen5, access the System menu and select
Diagnostics > Run System
Test .
Terms Used in the Error Codes Tables
•
Air Blank:
A full light reading through a filter with no plate in the light path.
•
Dark Current: A reading taken with the light blocked to measure background
light levels in the reading chamber. Also used as a measure of background
electronic noise within the measurement circuit.
• Gain: An automatic electronic adjustment to the measurement circuit. The
gain adjustment compensates for changing light levels or filter variations. For
example, if the lamp output decreases slightly, the gain will increase to make
up the difference.
•
Axis: Refers to a motor that positions the filter wheel or plate carrier.
•
Offset: A numerical limit, usually a range. For example, if the gain fails an
offset test, it may be too high or too low.
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