Heka Dental Unicline S, Operating And Technical Instructions

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12.4 Wireless foot control, technical specifications
Specification
Radio frequency: 433MHz
Encryption: 16 bit
Batteries: 3 pieces AAA NiMH rechargeable batteries (700-1100mAh)
Operating time: Up to 5 days with fully charged new batteries
Radio Part
The wireless foot control consists of the foot control it selves with a radio section and
a receiver PCB db-0064-11, which is located on P 103 on Power Base PCB.
Radio communication is at 433MHz and range up to 3 meters. The range of the
wireless connection depends of where the antenna is placed. Avoid placing the
antenna close to cabinet parts or cables.
The communication is encrypted to ensure that other equipment cannot start / stop
instruments, as well as more wireless foot controllers can be used in the same clinic.
To avoid food control can disturb each other, the foot controls use different channels
in the 433MHz band. The last digit of the encryption code determines the channel
used for communication. There must be more that 6 meters between foot controls
using the same channels.
The foot control sends the encryption key to the receiver during the setup
programming of the foot control.
If for some reason, radio communications should be out of function, you can connect
the foot control to the Dental Delivery System via the foot control cable and the foot
control will act like a non-wireless foot control.
The foot control can be in 3 modes:

Activated: when you press the foot control, the foot control transmit radio
signal and the power consumption is high (average 26mA).

Idle: when the foot control is not pressed (idle), the power consumption drops
to low (average 7mA).

Sleep: when the foot control has been idle for 5 minutes, the foot control will go
into sleep mode and the power consumption drops to very low (average 3.2mA).
In sleep mode detection of the first press on the foot control will be a little
delayed.
The foot control is designed to be used 8 hours a day in 5 days without charging and
be charges in the weekend.
The intelligent charging circuit adjusts the charging current according to the charging
level of the batteries.
Batteries
The foot control is designed and powered by three AAA 750mAh NiMH rechargeable
batteries, which are located at the bottom at the foot control. To access the batteries,
remove the battery cover on the bottom of the foot control. New batteries should
always be charged at least 24 hours prior to the foot control is used.