30/53 IMET - M550 ALL1-EN
6.7. Transmitting unit power supply
Radio remote controls with portable transmitters are supplied complete with two rechargeable Ni-Mh
batteries and a dedicated battery charger.
6.7.1. Battery state of charge
The battery’s state of charge is shown by the green LED on the transmitting unit.
A steady green LED means the battery is charged.
A flashing green LED means the battery is low. Turn off the transmitting unit and change the battery.
The LED begins to flash when the battery has power left for approximately 15 more minutes.
A low battery charge can also be indicated by an intermittent acoustic warning by connecting a horn to
the respective relay output on the receiver, which in this case closes for 1 every 8 seconds.
6.7.2. Changing and charging the battery
Shut-off the transmitter unit, remove battery from its housing, and insert it into the battery charger.
In order to guarantee better battery duration and efficiency, it is best to use the charge until it
completely empty, signalled by a green flashing LED on the Transmitter unit.
The battery charger must be powered through a conventional voltage line, without significant
fluctuations, in order to not affect the intelligent charge process managed by the microcontroller.
The CB3600 and CB5000 type battery chargers are equipped with a green LED that indicates that
power is present and a yellow LED that flashes 4 times when the battery is inserted (pre-charge) and
remains on until charging is complete.
The battery charger is capable of detecting residual charge and battery capacity. The average charge
time for a battery that has been discharged properly is 2-3 hours, in relation to residual charge and cell
capacity. The charge cycle ends when the yellow LED shuts off.
It is possible that, while charging a battery that is completely empty, the flashing yellow LED phase
(pre-charge) lasts several minutes.
If the flashing persists, clean the golden battery contacts using a soft cloth, if this problem
continues, replace the battery with a new one.
it is best not to interrupt the charge by removing the battery from the housing, or by shutting off the
battery charger once the yellow signal LED is no longer on.
The CB6000 type battery chargers are equipped with a single LED that has the same function of the
yellow LED from the CB3600 and CB5000 battery chargers described above.
In order to extend battery life cycles, if possible, avoid charging batteries that are already completely
or partially charged.
The battery charger is designed for indoor use: do not expose it to the elements. To preserve battery
life recharge the battery in a place with no humidity and a temperature between 5°C and 45°C.
The battery charger’s power plug should be installed close to the equipment and be easily accessible.
In case of direct-voltage power supplies, the connection between the battery charger and the power
supply should not be permanent. In this case, use a connector that can be disconnected at any time. If
you are using a CB6000-DC battery charger (see Chap. 9.11), protect the connection with a fuse
.
Warning: Explosion hazard if non-compatible batteries are used! Use IMET batteries only. See
Chap. 11 for information on the disposal of exhausted batteries.
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