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Sub Aspida Personal CO2 & O2 Monitor for Diving Systems
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Sub Aspida Personal CO2 & O2 Monitor for Diving Systems

Part no. SAACAAAU01A

The Sub Aspida is the ideal solution to protect you and your team from the dangers of enriched oxygen (O₂), carbon dioxide (CO₂) or inert gas leaks.

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Overview

Subsea CO2 and oxygen monitor for diving and hyperbaric systems. Reliable gas detection in underwater and high-pressure environments.

CO₂ & O₂ Monitoring

Unlike industrial sensing monitors, the Sub Aspida was designed with pressure corrected sensors, giving you 100% confidence in your readings.

The Sub Aspida has been upgraded to support those who work at high altitude.

Pressure tested to 10,000 ft or 700 MB, the Sub Aspida will remain accurate and reliable when monitoring CO2 and O2 in the atmosphere, meaning you can concentrate on the job at hand!

Accuracy

The Sub Aspida also finds itself at home inside of submarine rescue vehicles (SRV), tourist submarines and research submarines. The Sub Aspida produces accurate readings over a pressure range of 800-1200 MB, without false alarms. Having the option to power the unit from AA alkaline batteries in the event of the submarine losing power makes it a perfect back up safety monitoring system in order to comply with the rules around SRVs and life support stores with emergency monitoring being needed for a minimum of three days.

Regulations

For the transportation of COVID-19 vaccines requiring large quantities of dry ice, the FAA (Federal Aviation Administration) advise that:

  • CO₂ sensors installed or carried in the aircraft or worn by the pilots and other crew members will assist the operator and crew in recognizing hazardous concentrations of CO₂ and implementing effective risk controls.
  • Pilot training on specific conditions and procedures can improve pilot decision-making in the event of a CO₂ detector alert or other system abnormalities.

To persons conducting operations under Title 14 of the Code of Federal Regulation (14 CFR) Parts 121, 125, 129, 135 on safety issues related to the transportation of COVID-19 vaccines by air, which may require larger than typical quantities of dry ice for preservation.

Operators must comply with applicable federal regulations pertaining to the carriage of dangerous goods (49 CFR parts 171-180).

Pressure

Whether you are measuring the atmosphere in an aircraft at altitude or in a submarine under the sea, the Sub Aspida can take the pressure.

It is critical to use pressure compensated sensors in these environments, otherwise it’s likely that you will get false readings, exposing your team to potentially dangerous levels of gas.

Relax, let the Sub Aspida take the pressure.

What’s included

  • ✓It is the only portable monitor to be pressure corrected ensuring no false readings are given
  • ✓The Sub Aspida is compact in size (127 x 44 x 90mm LxDxW)
  • ✓The oxygen (O₂) sensor can be calibrated on air, reducing costly gas requirements and making you self sufficient in the maintenance of the sensor
  • ✓The carbon dioxide (CO₂) sensor only needs calibrating every 12 months
  • ✓OLED (Organic Light Emitting Diode) display
  • ✓Pressure compensated CO₂ & O₂ sensors
  • ✓Rechargeable battery-operated (NiMH)
  • ✓Datalogging
  • ✓Man-down alarm
  • ✓Can offer continuous monitoring or spot checking
  • ✓Audio, visual and vibration alarms
  • ✓TWA (Time Weighted Average) Alarm
  • ✓User maintainable
  • ✓Can be worn on the belt or clipped to a panel
  • ✓Pressure range of 700-1200mbara
  • ✓Maintenance reminders as standard

Specifications

Operating temperature0°C to +50°C
Operating pressure700 to 1200 mbara
Humidity Range0 to 99% RH
DisplayHigh-visibility, Organic Light Emitting Diode (OLED) display
Alarmhorn 95dB @ 30cm
LED indicators1 x Green - OK, 1 x Amber - Fault, 1 x Red - Alarm
Internal data log1 log every 30 seconds for at least 7 days of continuous use
Batteries2 x NiMH 2100mAh AA batteries (or suitable AA type batteries)
Battery discharge time12 hours under normal operation (Passive atmospheric monitoring, minimal user interaction, no alarms)
Battery lifespan2 years
Battery charge time4.5 hours (from flat)
Charge power supply rating9 V DC - 0.55A, DC jack 5.5x12.0x2.1mm centre +ve

Videos

Replacing the oxygen sensor on your Aspida

Frequently asked questions

How do I change the Oxygen sensor on the Sub Aspida?
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:
My Sub Aspida will not calibrate. It doesn’t matter what span gas I use, whenever I press Cal O₂ I get an x on the screen (calibration failed)?
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