Suunto HELO2 manual Transmitting data, Display Indication

2.Ensure that the Suunto HelO2 is turned on, and that the wireless integration is enabled in the Suunto HelO2 settings (HP set ON, see Section 5.9.8. Setting the HP code). The HelO2 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.

4.Take the Suunto HelO2 wrist unit close to the transmitter. The unit will then quickly display the selected code number and then start displaying the transmitted cylinder pressure. The wireless transmitter indicator is displayed every time the Suunto receives a valid signal.

WARNING	If there are several divers using Suunto HelO2 with wireless transmis-
	sion, always ensure that each diver is using a different code before
	starting the dive.
	You can manually change the transmitter’s code by reducing the
	pressure to less than 10 bar/145 psi and then immediately (within 10-
	12 seconds) increasing the pressure to above 15 bar/220 psi.
	Reset the transmitter's code manually, see Section 5.9.8. Setting the
	HP code.
	The transmitter will then select a new code. The Suunto HelO2 must
	be in “cd:--“ mode to pair on the new code. This procedure can be
	used if, for example, your dive buddy has the same code and you
	need to change it.
NOTE	In order to save battery energy, the transmitter shuts off if the pressure
	remains unchanged for more than 10 minutes, and it will continue
	transmitting with the saved code when any pressure change is
	measured.

5.8.3. Transmitting data

After the pairing procedure, the Suunto HelO2 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 HelO2 receives an appropriate signal it flashes the wireless transmitter indicator in the display’s lower left corner.

Table 5.3. Pressure transmission related displays
Display	Indication	Figure
Cd:--	Set Code. No code stored, Suunto HelO2 ready for pairing with trans-	A
	mitter.

- - -

FAIL

Pressure reading over 360 bar/5220 psi.

Pressure reading has not been updated for more than one minute. The latest valid pressure reading is displayed intermittently. After five minutes, "FAIL" is displayed intermittently with "---".

Transmitter is out of range, in power saving mode or on another channel. Activate the transmitter by breathing off the regulator, and recode the wrist unit if necessary.

B

C

LOb	Pressure transmitter battery voltage is low. The pressure reading is	D
	displayed intermittently. Change the transmitter battery!
OFF	Pairing has not been conducted between the dive computer and the	E
	transmitter before start of dive. No cylinder data available.

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