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SECTION 6 TROUBLESHOOTING
6.1 Introduction
Correcting problem conditions with the DR/2010 Spectrophotometer in
the field is limited to responding to the error messages presented in the
display. Other problems must be handled by a Hach technician at a
service center. Refer to REPAIR SERVICE. Do not attempt to service
anything other than battery and lamp replacement. There are no other
field-serviceable parts. Opening the instrument case voids the warranty.
6.2 Operational Messages
6.2.1 ****************
When a key is pressed that calls for the instrument to perform a function it
cannot do at that time, a string of 16 asterisks appears in the display
momentarily, and, if the beeper is activated, three beeps sound.
6.2.2 No Program XXX
If an unavailable program number is keyed in,
No Program xxx is
displayed. A mis-keyed number may be the cause. Program numbers must
range from 0 to 899 (Hach programs) and 950 to 999 (user programs).
Entering a number outside the range for these procedures results in the
incorrect number message. When this error message displays, re-enter the
proper number, or scroll to the desired program or option.
6.2.3 Lid Open
The LID OPEN? display is most likely to occur if the cell compartment is
not covered during the self-test or zeroing. Close the cover or use the light
shield cap and repeat the step by pressing
ENTER. This message also
occurs when the cover is open when the instrument is turned on. Closing
the cover, using the light shield cap, or installing the Pour-Thru cell is
recommended when the instrument is turned on.
6.2.4 Lamp Out
The LAMP OUT? message occurs when insufficient light is present to
take a measurement. It may be caused by:
• a faulty lamp
• an improperly positioned lamp
• an adapter placed incorrectly in the cell compartment
• a dark sample in the cell compartment during zeroing
• low lamp voltage
• some other electronic problem.
Investigate each possibility, beginning with those relating to operator
methodology. If the
LAMP OUT? display cannot be corrected, contact the
Hach service center or distributor serving you.
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