PERDIX SHEARWATER - Troubleshooting; 8.1. Warning and error displays; 8.2. Connection problems

Operating Instructions
Page 18
RevA
8. Troubleshooting
Follow these guidelines to help solve problems with the
Perdix AI�
8.1. Warning and error displays
The following table shows warnings and errors you may see,
their meaning, and steps to take to solve any problems�
Display Meaning Action to take
I
T1
----
P
S
I
3042
P
S
No Comms
Alternates
No communications for 30
to 90 seconds�
See Section 8.2. Connec-
tion problems
I
T1
----
P
S
I
----
P
S
No Comms
Alternates
Warning Confirm
AI LOST COMMS
+
No communications for
90+ seconds�
See Section 8.2. Connec-
tion problems
Warning Confirm
AI LOW BATTERY
+
I
3042
P
S
I
T1
3042
P
S
Low Bat
Alternates
Low transmitter battery�
Replace the transmitter
battery� See Section 9.1.
Transmitter Battery Re-
placement
I
T1
3600
P
S
Tank pressure exceeds
rated pressure by more
than 10%�
Properly set the rated pres-
sure in the AI Setup->Tx
Setup menu�
Warning Confirm
T1 RESERVE PRES.
+
I
T1
P
S
682
Tank pressure has
fallen below the reserve
pressure setting�
Be aware that gas is
running low� Begin to end
your dive and perform a
controlled ascent to the
surface�
Display Meaning Action to take
Warning Confirm
T1 CRITICAL PRES
+
I
T1
P
S
345
Tank pressure has fallen
below the critical pressure�
Be aware that gas is
running low� Begin to end
your dive and perform a
controlled ascent to the
surface�
GTR T1
---
GTR is not available when
on the surface�
None� GTR will display
during a dive�
GTR
wait
T1
GTR (and SAC) are not
available for the first
few minutes of a dive�
None� After a few minutes,
enough data has been
collected for display�
8.2. Connection problems
If you are seeing “No Comms” errors, follow these steps:
If the “No Comms” is persistent:
• Check that the proper serial number is entered into the
AI SetupT1/T2 Setup menu�
• Ensure the transmitter is turned on, by connecting it
to a rst stage and turning on the tank valve. Applying
high pressure > 50 PSI (3�5 Bar) is the only way to turn
on the transmitter. The transmitter will power o󰀨 after 2
minutes of no pressure�
• Bring the handset within range (3ft / 1m) of the
transmitter� Having the transmitter too close (less than
2 inches / 5 cm) can also cause communication loss�
If the “No Comms” is intermittent:
• Search for sources of radio frequency (RF)
interference, such as HID lights, scooters, or photo
ashes. Try eliminating such sources to see if this
solves the connection problem�