Suunto HELO2 Omitted decompression, Wireless transmission, Installing the wireless transmitter

Omitted decompression

The Error mode results from omitted decompression, i.e. when you stay above the ceiling for more than three minutes. During this three-minute period the Er warning is shown and the audible alarm beeps. After this, the dive computer will enter a permanent Error mode. The instrument will continue to function normally if you descend below the ceiling within this three-minute period.

Once in the permanent Error mode, only the Er warning is shown in the center window. The dive computer will not show times for ascent or stops. However, all the other displays will function as before to provide information for ascent.You should immediately follow through the decompression schedule in your backup plan.

After surfacing, you should not dive for a minimum of 48 hours. During the permanent Error mode, the Er text will be displayed in the center window and the planning mode will be disabled.

5.8. Wireless transmission

The HelO2 can be used together with a wireless cylinder pressure transmitter that easily attaches to the high-pressure port of the regulator. By using the transmitter, you can be- nefit from receiving cylinder pressure data direct to your wrist.

In order to use the transmitter, the wireless integration needs to be enabled in your Suunto HelO2 settings. To enable or disable the wireless integration refer to Section 5.9.7. Setting the tank pressure.

5.8.1. Installing the wireless transmitter

When purchasing the Suunto HelO2, we strongly recommend that you have your Suunto representative attach the transmitter to the first stage of your regulator.

However, if you decide to attach it yourself, do the following:

1.Remove the high pressure (HP) port plug on the first stage of your regulator using an appropriate tool.

2.Thread the high pressure transmitter of the Suunto into the HP port of your regulator with your fingers. DO NOT OVERTIGHTEN! Maximum torque is 6 Nm/4.4 lbsft or 53 lbsin. The seal is based on a static O-ring, not force!

3.Attach the regulator to the scuba cylinder and slowly open the valve. Check for leaks by submerging the regulator first stage in water. If leaks are detected, check the condition of the O-ring and sealing surfaces.

5.8.2. Pairing and code selection

In order to receive wireless data, the transmitter and the Suunto HelO2 need to be paired. During the pairing procedure, the transmitter and dive computer select a common trans- mission 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 HelO2 stores the code number and starts displaying pressure values that are re- ceived with that code. This coding procedure inhibits data mix-up from other divers also using a Suunto HelO2 transmitter.

When there is no stored code, the Suunto HelO2 displays “cd:--” and receives data with lowered sensitivity from a very short distance only. By taking the Suunto HelO2 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 until you reset it manually.

To pair the transmitter and the Suunto HelO2 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.

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