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Recalibration

Recalibration may be necessary if your wasserleser's readings become inaccurate or after certain maintenance events like power loss or physical repositioning.

When to Recalibrate​

Consider recalibrating your wasserleser when:

  • Readings drift significantly from your physical meter
  • After extended power outage or disconnection
  • Following physical repositioning or reinstallation
  • After cleaning the sensor or metal plate
  • After performing a factory reset
  • If consumption data seems consistently high or low

Before You Begin​

Check These First​

Before recalibrating, verify:

  1. Sensor positioning: Ensure the sensor is exactly over the rotating metal disc
  2. Physical meter reading: Have your current meter reading ready
  3. Power connection: Device is powered and connected to WiFi
  4. Cleanliness: Sensor and metal disc area are clean (see Plate Cleaning)

What You'll Need​

  • Current reading from your physical water meter
  • Access to the stromleser app
  • Stable internet connection
  • 5-10 minutes of time

Recalibration Methods​

Method 1: Update Initial Reading​

The simplest recalibration method if readings have drifted:

  1. Note your current physical meter reading
  2. Open the stromleser app
  3. Select your wasserleser device
  4. Tap the gear icon (⚙️) → Settings
  5. Navigate to Initial Reading or Meter Reading
  6. Enter the current reading from your physical meter
  7. Save the changes

This synchronizes the app with your actual meter without changing pulse detection settings.

See Initial Reading for detailed instructions.

Method 2: Full Recalibration via Settings​

For more significant accuracy issues:

  1. Open the stromleser app
  2. Select your wasserleser
  3. Go to Settings (⚙️)
  4. Find Calibration or Recalibrate Device
  5. Follow the on-screen prompts:
    • Confirm current meter reading
    • Verify water parameters
    • Test pulse detection
  6. Complete the calibration process

Method 3: Factory Reset and Reconfigure​

For persistent issues or after major changes:

  1. Perform a factory reset (see LED Indicators)
  2. Reconfigure the device from scratch
  3. Enter all parameters fresh
  4. Complete full initial calibration
Data Loss

Factory reset removes all historical data from the device. Export your data first if you want to keep it.

Recalibration Process​

Step 1: Verify Sensor Position​

Before starting:

  1. Check that the wasserleser sensor sits directly over the metal disc
  2. Ensure stable mounting (no wobbling)
  3. Verify the disc rotates freely

Step 2: Enter Current Reading​

  1. Read your physical water meter carefully
  2. Note all digits, including decimals if shown
  3. Enter this exact value in the app
  4. Double-check for accuracy

Step 3: Test Detection​

  1. Run water briefly (10-20 seconds)
  2. Observe if the app detects consumption
  3. Check that the reading increases appropriately
  4. Verify the increment matches actual usage

Step 4: Validation Period​

Monitor for 24-48 hours:

  • Compare app readings to physical meter multiple times
  • Use known amounts of water (filling containers) to verify accuracy
  • Adjust if readings still drift

Verifying Recalibration Success​

Accuracy Test​

  1. Note both app and physical meter readings
  2. Use a measured amount of water (e.g., 10 liters)
  3. Check that app reading increased by approximately 10 liters
  4. Acceptable variance: ±5% (0.5 liters for 10-liter test)

24-Hour Check​

After 24 hours:

  1. Compare app reading to physical meter
  2. Readings should match within 2-3%
  3. If significant difference remains, recalibrate again

Troubleshooting Recalibration​

Readings still inaccurate after recalibration:

  • Verify sensor is positioned correctly over the rotating disc
  • Check that metal disc rotates smoothly
  • Ensure power connection is stable
  • Clean sensor and meter surface
  • Check water parameters are configured correctly

App won't save calibration:

  • Ensure stable WiFi connection
  • Check that device is online
  • Restart app and try again
  • Contact support if issue persists

Readings drift again quickly:

  • May indicate sensor positioning issue
  • Check for loose mounting or vibration
  • Verify metal disc isn't damaged or obstructed
  • Consider repositioning the wasserleser

No pulse detection after recalibration:

  • Confirm sensor is directly over the metal disc
  • Check that disc actually rotates when water flows
  • Verify power connection
  • Perform factory reset if needed

Recalibration vs. New Installation​

When to recalibrate:

  • Minor reading drift
  • After power outage
  • Sensor cleaned or slightly adjusted

When to reinstall:

  • Major physical movement of device
  • Water meter replacement
  • Persistent accuracy issues despite recalibration
  • Switching between adapter and metal plate mounting

Maintaining Calibration Accuracy​

To minimize need for recalibration:

  1. Stable mounting: Ensure wasserleser doesn't move or vibrate
  2. Regular cleaning: Clean sensor area every 6-12 months
  3. Avoid power interruptions: Keep USB power connected
  4. Periodic checks: Compare to physical meter monthly
  5. Proper positioning: Keep sensor exactly over the metal disc

Getting Help​

If recalibration doesn't resolve accuracy issues:

Advanced Calibration​

For users experiencing persistent issues, advanced calibration options may be available:

  • Custom pulse rate configuration
  • Detection sensitivity adjustments
  • Manual pulse counting mode

Contact support for guidance on advanced calibration features.