The process for Sub Aspida calibration is very simple, please follow these steps:

Step 1:

Connect your aSub Aspida to the PC via a USB A to USB lead

Step 2:

Open the Analox Sub Aspida shortcut

Step 3:

The software should load with your device identified under found devices

Step 4:

Select your device (under found devices (click the icon) then click sensor settings

Step 5:

Select the sensor you wish to calibrate and click calibrate

Step 6:

In the calibration window, click next

NB. it is always best to low calibrate prior to high calibration

Step 7:

Select low calibrate the sensor, and change the gas content value to the content of your low calibration gas (in ppm) (100% N2 would be preferable)

Step 8:

Click next

Step 9:

Follow the instructions for connecting regulator to a gas cylinder and click next

Step 10:

Follow the instructions for connecting the flow adapter to your device and click next

Step 11:

Turn the calibration gas on and click next

Step 12:

Wait for the reading to stabilize and click calibrate

Step 13:

Then move on to the sensor’s high calibration. The instructions should guide you through this step by step.

If you have any difficulty or require additional support, please feel free to contact Analox

The Oxygen sensor in my Sub Aspida is depleted, I have purchased a replacement however I am unsure of the cell replacement procedure.

This is understandable as the procedure is a little fiddly. The best way to explain this is by video:

It sounds like the O2 cell has depleted. As the cell depletes due to oxygen exposure its output reduces. The Sub-Aspida accounts for this and displays a corrected reading. However when the cell depletes too much, the Sub-Aspida refuses to calibrate, this is to prevent incorrect readings from the Oxygen cell. Please contact your vendor and order a new Oxygen cell part number: 9100-1060A