Press any key on the keypad to activate the display screen.

Press the enter key (usually a hash symbol # or a blue/green button ). Verify the Screen Response:

You can access specific information about your meter using dedicated codes. To use them, press the information key (marked with a small "i") on your CIU or meter keypad, then enter the code.

– Displays the current instant power demand in kilowatts (kW).

| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | Invalid Token (Checksum fail) | Re-enter the token slowly. Check if you misread a "0" for "O". | | Error 2 | Token Expired | The token was generated too long ago. Return to vendor for a new one. | | Error 5 | Meter is Locked (Debt) | You have a negative balance. Enter a token large enough to cover the debt plus new credit. | | Error 8 | Tamper Alert | The meter detected magnetic interference or an open terminal cover. Call your utility. | | Error 10 | Duplicate Token | You already used this code. Check your remaining balance. | | Error 16 | Wrong Meter ID | This token belongs to a different meter. Check the serial number on your meter vs the receipt. | | Error 30 | Low Battery | The internal CIU battery is dying. The meter will still work, but the clock may be wrong. Request a replacement. |

Displays your remaining balance in kilowatt-hours. 3. How to Recharge Your Meter

Usually installed in a secure area (like a boundary box or electrical board).

The is a widely used, single-phase, keypad-based prepaid electricity meter designed to help consumers manage their energy usage efficiently . As a robust and secure prepayment solution, it operates using STS (Standard Transfer Specification) tokens to manage electricity credit.

Typically housed in a secure, weather-proof kiosk, meter cabinet, or boundary box outside the house.

Bring the indoor unit closer to the outdoor unit (if portable). If this doesn't work, contact your utility provider to reset communication. 5. Meter Resetting/Lockout

Note from the user manual: The CIU is not waterproof. If installed outdoors, it must be in a weatherproof housing.