Hach 2100AN - Error Codes; Introduction; Section 12 Troubleshooting

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SECTION 12 TROUBLESHOOTING
12.1 Introduction
The Model 2100AN Laboratory Turbidimeter incorporates a number of error
codes and self-diagnostic functions for convenient and effective system
troubleshooting.
12.2 Error Codes
Error codes may be initiated due to instrument malfunction or operator error.
ERRXX error codes are cleared from the display by pressing the ENTER key. The
instrument continues operating in the error condition; a calibration in progress can
be continued. Table 5 lists the error codes displayed for specific conditions.
Table 5 Error Codes
Code Probable Cause Corrective Action
ERR01
Dilution water is greater than
0.5 NTU
Start calibration over with better quality dilution water before use.
ERR02
Two calibration standards have
the same value, or their difference
is less than 60.0 NTU.
Recheck preparation of standards and repeat
calibration.
ERR03 Low light error
Re-insert sample. Check that lamp is on. Check for obstructed light path.
Dilution may be necessary.
ERR04 Memory malfunction Switch instrument off and back on with I/O. Call Hach service.
ERR05 A/D over-range
Be sure cover is closed and appropriate Filter Module is installed. Call Hach
service.
ERR06 A/D under-range Check light path for obstruction. Call Hach service.
ERR07 Light leak Be sure cover is closed. Switch instrument off and back on with I/O.
ERR08 Badlampcircuit
Ensure lamp lead ends are not touching. Ensure lamp leads are inserted in
terminal block. Call Hach service.
ERR09 Printer time-out error
Check that external printer is properly connected. Check that external printer is
selected (on-line).
ERR10 System voltage out of range Switch instrument off and back on with I/O. Call Hach service.
ERR11 System loop test error. Switch instrument off and back on with I/O. Call Hach service.
ERR12 ASC units name error. Enter an ASC unit name that is not one of the default units (NTU, EBC, etc.).
ERR13 ASC points error.
ASC points must be entered in ascending NTU order. At least two ASC points
must be entered.
ERR14 Invalid time error. Time must be between 00-00 and 23-59.
ERR15 Invalid date error. Date must be between 01-00 and 12-31.