SUUNTO D4i - Manual (Page 45)

4. Take the Suunto D4i unit close to the transmitter (the system must be pressurized
to above 15bar/300 psi). The dive computer displays the received new code
number and then start displaying the transmitted cylinder pressure. The wireless
transmitter indicator (flash symbol) is displayed every time the Suunto D4i receives
a valid signal.
NOTE
In order to save battery energy, the transmitter enters power
saving mode with slower data transmission rate if the tank pres-
sure remains unchanged for more than five (5) minutes. The
transmitter continues transmitting with the saved code when any
pressure change is detected (e.g., the user presses the purge
button on regulator or breathes from the regulator).
5.7.3. Transmitting data
After the pairing procedure, the Suunto D4i will receive cylinder pressure data from
the transmitter. The pressure is displayed in either bars or psi, depending on the unit
selected. Any time the Suunto D4i receives an appropriate signal, a flash symbol is
displayed in the lower left corner.
Table 5.4. Pressure transmission related displays
Figure Indication Display
A No code stored, the Suunto unit is ready for pairing with the
transmitter. Cd:--
B Set Code. Code number can be between 01–40. Cd:10
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