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Katie RodriguezJul 27, 2025
What to do if Hach HQ11d Measuring Instruments meter will not power on?
- JjamiediazJul 27, 2025
If the Hach Measuring Instrument meter won't power on, first ensure the batteries are correctly installed, paying attention to the polarity markings. If that doesn't work, try cleaning the battery terminals and installing new batteries. You can also connect an AC power adapter to test the device.
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