Comark RF500A User Manual
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Transmitter Activation
RF500 transmitters are despatched in a disabled state to preserve the battery. To activate these, insert the RF525
Activator into the 3-pin socket marked B in “Figure 10 - Connector view of RF512, RF515, RF516 & RF542
Transmitter” {Page 28} until the display is enabled then remove the RF525.
On rare occasions RF542 Transmitters may show low battery on activation. This is due to a chemical process within
the AA lithium cell called passivation, this is normal and the AA cell is not necessarily dead. Simply remove and
replace the same battery by following the instructions in “Changing Lithium Battery on RF500 Series Transmitters”
{Page 43}. The low battery indication should not re-appear.
Once activated, transmitters can only be de-activated by removing the battery.