Standard HMX24
•
When the vehicle is turned off the battery state is quiescent at
24V.
•
When switched on, the alternator will raise the battery output
to 27V.
•
The software in the Handeman Xtra® will see this rise and
switch the unit on when 27 volts is detected. The Handeman
Xtra® will then continue to work until the vehicle is switched
off and the unit will see the battery output drop back to 24V
and will cut out at 25.5 V.
•
The battery will not be therefore be drained by the Handeman
Xtra®
**Non-voltage sensing
The non-voltage sensing Handeman unit model number is
HMX12NV.
With the advent on many modern vans of Smart Regenerative
Charging technology, the alternator will have the ability to see the
state of battery charge and decide to switch on and off during the
journey – thus saving fuel.
The consequence of this, is to potentially keep switching the
Handeman Xtra® on and off during the journey, which reduces the
heating time available.
To overcome this issue, Teal have introduced non-voltage
sensing version. The Handeman Xtra® will, when connected to the
vehicle’s battery, switch on and keep running, which could
potentially run the battery flat.
Therefore a switch or relay must be introduced between the
battery and the Handeman, enabling it to be switched off
either manually or automatically.
The choice of switches or relays is down to customer preference
