Re-charging the vb Instrument
The information provided is for help with Commtest Instruments products:
- vb instrument
We recommend you fully charge the instrument before first use using the instructions below.
- With the instrument turned off, plug the power transformer into a standard power outlet and the connector to the instrument's charger socket.
If the battery charge level is lower than 80% the battery will begin charging automatically.

Charging stops automatically when complete. A full charging cycle (from zero charge) takes approximately two and a half hours.
If the Battery does not Begin Charging Automatically
If the vb instrument does not begin charging this could be because the battery is already sufficiently charged (80% or more). If this is not the case you will need to manually begin the charge cycle.
- Press [1] to display the Charger Control Menu.
- Press [1] to begin charging. A flashing 'CHARGING' message will be displayed.
If there is no power coming from the power transformer a flashing 'NO CHARGER' message will display. If this happens check that the mains power is turned on and the battery adaptor is connected properly.
FAQ ID: 11891 Last Reviewed: 01/11/2005
