Configure The Standard Verification Options; Configure The Cleaning Options - Hach CODmax III User Manual

Option Description
Mode Sets the instrument to use the Standard or Customized calibration or flush the
lines after calibration.
Standard—The instrument uses the default calibration points: STD0 and
STD1 standard solutions.
Customize—The instrument uses user-defined calibration points. STD0 standard
solution and one configurable point (100 to 1500 mg/L)
Calibration standard— Sets a calibration point smaller than the operating range
up limit.
Calibration post action: Sample flush—The instrument flushes the lines after
calibration.
Factor & Changes the calibration factor (default: 1.000) and offset value (default: 0.000) for
Offset each range, which changes the measurement values. Only change the default
calibration values after careful analysis of grab sample results. When the grab
sample results are different from the analyzer results and the grab sample results
are thought to be correct, change the calibration factor and offset to make the
results agree. The new calibration factor and offset are included in the log files.
High chlorine compensation—Enter the chlorine compensation of the sample.
The instrument will automatically adjust the measurement value.

6.5 Configure the standard verification options

Use the Standard verification menu to select how and when standard verification occurs.
1. Push Menu > Settings > Standard verification.
2. Select the applicable screen and make changes as necessary.
Option Description
Schedule Sets the instrument to start a standard verification at regular intervals. Options: Off,
Customize (1 to 1440 minutes), Interval (6, 12, 18, 24 hours). Select the Start Time
and date when the verification starts.
Mode Concentration—Enter the concentration of the verified sample (0 to 2500 mg/L).
Accept range—Sets the acceptance range for verification to a percentage (0 to
10%).
Stop device—Enables the instrument to stop the measurement when the verification
is not accepted.

6.6 Configure the cleaning options

Use the Cleaning menu to select how and when a cleaning cycle occurs.
1. Push Menu > Settings > Cleaning.
2. Select the applicable screen and make changes as necessary.
Option Description
Schedule Sets the instrument to start a cleaning cycle at regular intervals. Options: Off,
Customize (50 to 10080 minutes), Interval (1, 3, 5, 7 days). Select the Start Time
and date when the cleaning cycle starts.
Mode Sets the instrument to start a flush or calibration after the cleaning cycle is
complete. Options: None, Sample flush or Calibration.
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