User's Guide

4. Appearance and functional mode
LED color Status Indication
Green
When the battery level is more than 50%, after
each data transfer, flashes for 0.5 seconds for 3
times.
RED
When the battery level is less than 50%, after
each data transfer, flashes for 0.5 seconds for 3
times.
Green + Red
When powering on, both LEDs will turn on for 1
second
LED Status Indication
Please refer to : www.gpacers.com»Technical Support»Tutorial_GPT First Use
Appearance
Threading Hole
Waterproof Housing
TX_DS
Power Sw and TX_OK
TX_DS and
TX_DST status
① To transmit
data of TX_DS
status
② To transmit data
of TX_DST status
② Once the diver is safe,
change to DISTRESS
TERMINATING function to
report safe. [see next page]
① Call for help as diver in
distress status.
To transmit
data of TX_OK
status
③
Shutdown
PS. Sw/switch ; DS/distress ; stdby/standby ;
RX/receiver ; TX/transmitter ; RP/repeater ;
TRX/transceiver
TX_DS/transmitter DISTRESS function ;
TX_DST/transmitter DISTRESS TERMINATING function ;
TX_OK/transmitter OK function ;
DISTRESS TERMINATING function in Transmitter Mode
• DISTRESS function should ONLY be used in case of emergency. Misuse of DISTRESS function
might cause waste of rescue resources.
• Before turn off the power to end the DISTRESS function, it is recommended to send a signal
of DISTRESS TERMINATING (switch to OK function) for a 60-minutes period, to notify that
the rescue is no longer required.
Transmission Density
• Within 2 hours after start, 1 data emission per 10 sec. ; After that, send 3 consecutive data
every 3 min.