What does 'The value must be: xxx—yyy (xxx is minimum, yyy is maximum)' mean on Hach Laboratory Equipment and how to fix it?
This message indicates that the value entered was out of the legal range when changing a numeric parameter. Enter a value within the specified range.
What does 'Logging intervals must be: 1,2,3,5,6,10,12,15,20,30,60' mean on Hach 900 MAX and how to fix it?
This message indicates that an invalid logging interval was entered. Enter a valid logging interval.
What does 'No changes allowed while a pgm is running. Use run/stop key' mean on Hach 900 MAX Laboratory Equipment?
This message indicates that an inaccessible selection was made on a menu screen while a program is running. Stop the program before proceeding, using the RUN/STOP key.
What does 'No retries are possible when the liquid sensor is disabled' mean on Hach 900 MAX Laboratory Equipment and what to do?
This message appears if Sample Retries is selected from the Modify Selected Items scrolling list, and the liquid sensor is disabled. Enable the liquid sensor to use retries.
What does 'No year entered' mean on Hach 900 MAX and how to fix it?
This message indicates that an invalid number was entered when setting a date. Enter a valid year.
What does 'Sampling halted because the bottle is full' mean for Hach 900 MAX and what to do?
The message 'Sampling halted because the bottle is full' means that a sample attempt was stopped because the bottle is full. Replace or empty the bottle before sampling again.
What does 'Sensor output voltage too low—cannot calibrate' mean on Hach 900 MAX and how to fix it?
The message 'Sensor output voltage too low—cannot calibrate' indicates that the D.O. calibration yielded an invalid result. Try another probe.
What does 'Calibration requires a minimum submersion of six inches' mean on Hach 900 MAX?
This message relates to level sensor calibration of the bubbler or submerged sensor. Ensure a minimum submersion of six inches during calibration.
How to fix 'Low Main Battery' on Hach 900 MAX?
If the power supply voltage is less than 11 V dc, the 'Low Main Battery' error appears. To solve this, change the batteries.
What to do if Hach 900 MAX Laboratory Equipment shows 'Slate Memory Full'?
If your unit is in slate memory mode and can't log any more data because there is no more slate memory, download the data and restart the program. Alternatively, download the data and then change the memory mode.
Explains hazard signal words (Danger, Caution, Note) for understanding warnings.
Advises reading and observing all labels attached to the instrument for safety.
States the instrument is not approved for hazardous locations as defined by the National Electrical Code.
Covers dimensions, cabinet, thermal system, power, and control panel.
Details sampling modes, intervals, communication, and data logging.
Lists specifications for optional probes (pH, DO, ORP, Conductivity) and sensors.
Guides on unpacking and choosing an optimal installation site.
Guides on initial power-up, main menu, and basic programming steps.
Details setup steps for bottles, intake tubing, program lock, and sample collection.
General| Brand | Hach |
|---|---|
| Model | 900 MAX |
| Category | Laboratory Equipment |
| Language | English |
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