HL-1D Battery Replacement

[Michael F]

If you replace the battery within the HL-1D will readings stored in memory be maintained? Also, will the calibration data also remain intact or will the logger require calibration after a battery replacement?

[ME_Rotronic]

Hi, the stored data will remain in the memory if the battery will taken out.
Calibration data are not stored generally. After calibration a calibration report can be created.
But adjustment data will be stored within the memory. So these data might not be lost when the battery is out of the device

[Michael F]

Thank you for the information; however, you last comment is unclear. Please provide a more definitive response. After the battery is replaced will the unit require calibration?

[ME_Rotronic]

Hi Michael,
for my understanding, a calibration is a measurement comparing the HL-1D to another reference. This kind of measurement are possible using HW4. But no calibration data will be stored within the HL-1D.
For an adjustment it is different. An adjustment of the HL-1D is a correction of the measurement of the HL-1D. With an adjustment, the acquired data (an offset of humidity) will be stored within the HL-1D.

If you take the battery out now, the adjustment data (acquired data/offset of humidity) keep within the device. But calibration data are never stored within the HL-1D independend if you take the battery out or not.
I hope I could explain my post a bit better.

[Michael F]

Thank you! That clears it up!!

[Conlin Yang]

Hi，I have two HL-1D devices here. The humidity prompt "E11" appears on the boot screen. What is the fault? Is there a fault code table for reference?

[tomhanks1]

As far as I know, no calibration data will be stored within the HL-1D.
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[Angela78]

I think when replacing the battery in the HL-1D data recorder, the data stored in the memory will usually be maintained. However, this still depends on the type of battery and how the computer is designed.
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