29
Probe
connections from multimeter to joystick
4.1.5.1.2
Verifying power cables
•
To verify the condition of the chair’s power cables, check their sheaths. There must be no tears, signs of
wear or deep throttling which can alter the dielectric insulation properties of the sheath.
•
Check that there are no areas of discoloration, blackening, brittle or missing areas on the sheath near the
connectors. This indicates that there is a faulty contact which can cause overheating.
•
Check that all cables are securely connected to their respective terminals. Cables should not move inside
their terminals and there should not be any loose strands of wire near the terminals.
•
Check that there are no traces of oxidation or verdigris near the terminals.
•
Open the battery compartment and remove the two 12 Volt batteries.
•
Disconnect both batteries from the chair by pulling on the black "Anderson" connector to separate both
parts.
•
Using the voltmeter mode on a multimeter, check the total battery voltage. To do this, turn on the
multimeter and select V mode. The multimeter should be in DC voltage reading mode. It is not possible to
get a proper voltage reading in AC mode. Probes must be well connected to desired terminals to obtain a
reliable reading.
CAUTION!
Extreme care must be taken while connections are made between multimeter probes and
desired terminals when reading current measurements because there is a risk of damaging multimeter
and/or the chair and of serious injury when attempting to read it.
•
Connect the multimeter probes to the positive and negative terminals of the "Anderson" connector on the
battery.
Refer to images below.
