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Technical Support FAQ

Models 6000 & 6020 - Photometric Analyzers

What are the cold start procedures for this instrument?
How do I set the unit for manual rather than automatic start mode for the lamp?
Where can I find the 4-20 mA output modules on the computer motherboard?
How should I align the disc that is painted half light blue and hald black with the reference and measure filter disc?
What are the failure codes for the D2 lamp controller?


What are the cold start procedures for this instrument?

Cold start procedures can be found here.

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How do I set the unit for manual rather than automatic start mode for the lamp?

(This answer pertains to any 6000 series unit with D2 lamp.)

To enter manual mode of the D2 power supply, do the following:

1) Turn power to the analyzer off.
2) Turn the unit on and hold the SW 2 switch on the small D2 power supply board. The LED display should read 0.
3) Push SW 2 one time - LED display on the same board should read 1.
4) Push again so it shows 2.
5) Push and release; wait for 2 to 3 seconds after every push until the display shows 6. The lamp should have started operating.

Leave the unit working in this state for continual manual operation of the lamp.


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Where can I find the 4-20 mA output modules on the computer motherboard?

The 4-20ma modules are supplied on of two ways:



as a component from Analog Device, Part Number 1b-22 AN
(device with the white label) or



as a separate circuit board mounted on the top.


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How should I align the disc that is painted half light blue and hald black with the reference and measure filter disc?

Please see this diagram:

Filter Disposition 6020 Analyzer.jpg

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What are the failure codes for the D2 lamp controller?

Failure codes are as follows:

F2: Anode under current
F3: Anode over current
F4: Anode under voltage
F5: Anode over voltage
F6: Filament over current
F7: Filament under current
F8: Filament over voltage
F9: Filament under voltage

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