---
title: Density Meter Backup & Restore
description: Steps to perform a density meter backup and restore as well as an air water calibration.
---

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# Density Meter Backup & Restore

## Steps to perform a density meter backup, restore, and air water calibration. This resolves most issues when the measured value is low.

**Backup & Restore**

1. Select Menu, if prompted for a passcode, enter 123
2. Select Calibration
3. Select Backup/Restore Calibration
4. Select Restore Calibration Records
5. From the list or calibration records, select the one that says Factory with the most recent date
6. Select Restore
7. Allow the restore to complete

**Air & Water Calibration**

1. Clean and dry the tube
2. Select Menu if prompted for a passcode, enter 123
3. Select Calibration
4. Select Calibration Adjustment
5. Select Air, Water
6. Select Perform
7. Select Yes, then OK
8. Follow the steps displayed on the screen for the Air calibration
9. A window will display the results, select Accept
10. Follow the steps displayed on the screen for the Water calibration
11. A window will display the results, select Accept
12. The final calibration window will appear, take a picture of this screen for review if you still have incorrect readings during the next step
13. Perform a water measure test and record the results
14. Clean and dry the tube and run your samples, confirm if the measurement is withing specifications

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