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User manual
CHOOSING YOUR POWER SOURCE
1. Using the internal battery
Testing the internal battery
Before using the NOMAD OBD Memory Saver, you should always ensure that the internal battery is charged. To do
this, press the
button and check that the LED
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Monitor the LEDs and the panel display
LED
Recharging the internal battery
The NOMAD OBD MEMORY SAVER is supplied with a charger
the mains and then to the unit to recharge the internal battery. A full recharge takes a maximum of 2 hours.
2. Using an external battery
If the battery charge level in the NOMAD OBD is too low, it is still possible to use the unit in an emergency by using an
alternative power source.
- Connect the unit to an external 12 V lead-acid or lithium battery using the clamps provided
- This external battery then becomes the power source during the battery replacement.
BATTERY REPLACEMENT: OPERATING INSTRUCTIONS
1 - Ensure that the NOMAD OBD internal battery is charged, or that it is correctly connected to an external battery (see
above).
2 - Before use, make sure that all the consumers in the vehicle (fan, lights, on-board computer, etc.) are switched off.
Allow some time for all the power consumption associated with opening the vehicle has dissipated.
If the current consumed by the vehicle is greater than 4 A, the NOMAD OBD MEMORY SAVER will indicate
excessive consumption on the display
current while these consumers are on, so all output power is cut off. This also means that no other work
should be undertaken on the vehicle while the battery is being changed. The simple act of opening an elec-
trically operated door can result in instantaneous energy consumption.
3 - Connect the OBD cable to the OBD socket in the vehicle.
Make sure the connector is correctly connected to the vehicle. If this is not done correctly, there will be no
power output available to maintain the ECU memory of the vehicle while the battery is being changed.
4 - Press the On/Off button
use, providing a temporary substitute for your battery in order to power the ECU.
5 - Disconnect the battery that is to be replaced from the vehicle, and lay the cables on a non-conductive surface.
The electrical system in the vehicle is powered by the OBD Memory Saver via the OBD socket.
The battery connectors on the vehicle are always powered. Therefore, when removing the battery you are
replacing, it is essential to insulate it and ensure that it does not come into contact with any metal part or
conductive object that could create a short-circuit.
6 - Once the new battery is reconnected to the vehicle, disconnect the NOMAD OBD Memory Saver.
7 - Recharge the device after use.
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Translation of the original
instructions
is lit.
3
:
4
Voltage
Very low voltage. Power output is disabled. Recharge the unit before
< 11 V
using it or connecting it to an external battery.
Low voltage, but power output possible. Audible alarm.
< 12 V
Power can still be supplied to the OBD port.
OK
Voltage greater than 12 V. Optimal use.
, and the red LED will light up. The unit cannot supply the required
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to switch on the NOMAD OBD Memory Saver. The unit will now be active and ready to
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NOMAD OBD MEMORY SAVER
. When the voltage is low, connect the charger to
6
.
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