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2.2
F
D
UNCTIONAL
ESCRIPTION
2.2.1 T
RANSMITTER UNIT:
Handle
The transmitter is controlled by a small microprocessor. It is always turned on in a standby mode, and
will therefore discharge the battery after 3 to 5 months, depending on the state of the battery, if it is not
recharged during that period of time.
A fully charged battery have a capacity of at least 12 hours of continues operation. The long operating
time is made possible by the Delta timeshare transmission system, WTT.
The battery is charged by the stainless steel contacts at the back side of the transmitter. The transmitter
must be charged on the charge station on the receiver front panel, or on a mains battery charger,
CH300 delivered by Delta. The charging connections, are protected from discharging of the built-in
battery.
The deadman push-button is activated by a stainless steel handle. When pushed, the transmitter stays
active for 2,5 seconds without any action from the operator. To stop the function, press the second
button the Extra function. In addition to stop the active function, it will also activate the extra function
output as long as it is pressed.
The radio signal activates an output circuit in the receiver, supplying the output or the deadman
function on the receiver's connector. This is the output for the deadman button for refuelling.
If the STOP-button is pressed, all function stops instantly and the normally operated STOP output,
used for emergency stop, in the receiver goes off as long as the button is pressed.
The third push-button called, extra function, is used for stopping the deadman output from the running
transmitter, and also activates the Extra function output as long as operated. Note that this function is
on the standard delivery not possible to operate simultaneously with the deadman function. For
simultaneously operation, the receiver must be reprogrammed.
There are two light diodes, LED on the front panel marked "TX" and "LB".
The TX LED is yellow and is blinking when the transmission is active, and will continue to blink for
a short time after the operative push-button is released, sending an active stop signal to the receiver.
The LB LED is a dual function LED. It blinks with a red light when the battery is at low voltage or
capacity, and should be recharged. The transmitter can be used for about 15 min. after the red LED is
turned on. At a lower battery voltage, the TX LED is turned off, indicating that the transmitter have
stopped transmitting.
During normal operation, the LB LED is flashing green, indication that the connection with the
receiver is good.
D
RC AS
ELTA
LB LED
User and Installation Manual, DE212-2S DSD
STOP Button
TX LED
Extra function
Deadman
Battery
Page 11 of 24
Document 02481
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