Suunto D9 manual Pairing and code selection

5.8.2. Pairing and code selection

In order to receive wireless data, the transmitter and the Suunto D9 need to be paired. During the pairing procedure, the transmitter and dive computer select a common transmission code.

The transmitter is activated when the pressure exceeds 15bar/218 psi and it then starts sending pressure data together with a code number. During the pairing procedure, the Suunto D9 stores the code number and starts displaying pressure values that are received with that code. This coding procedure inhibits data mix-up from other divers also using a Suunto D9 transmitter.

When there is no stored code, the Suunto D9 displays “cd:--” and receives data with lowered sensitivity from a very short distance only. By taking the Suunto D9 close to the transmitter, it will store the received code and start receiving with full sensitivity and display data received with this code only. The code is stored for approximately two hours, or until the cylinder pressure falls below 10 bar/145 psi. The set code can also be manually erased.

To pair the transmitter and the Suunto D9 dive computer:

1.Make sure that the transmitter is properly attached to the regulator’s HP port and that the regulator is properly attached to the cylinder.

2.Ensure that the Suunto D9 is turned on, and that the wireless integration is enabled in the Suunto D9’s settings (HP set ON, see SECTION 5.9.10). The D9 should display “cd:--” in the lower left corner of the alternative display.

3.Slowly open the cylinder valve fully and pressurize the regulator. The transmitter starts transmitting when the pressure exceeds 15 bar/218 psi.

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