Sub Aspida - O2 & CO2 Portable Safety Monitor - Analox

Designed specially with diesel-powered military submarines in mind, this compact, robust O2 and CO2 monitor is also ideally suited to commercial manned submersible environmental monitoring. Providing continual displays of the O2 and CO2 content in the enclosed space of a submersible with adjustable alarms and data logging, what more could you need? The Sub Aspida is a portable oxygen and carbon dioxide monitor with a ‘man down’ alarm, audio/visual alarms, data logging and can be powered with batteries ora power supply unit. The inclusion of a pressure sensor in the Sub Aspida provides accurate, pressure compensated O2 and CO2 readings across a pressure range of 800 to 1200 mbar. Relatively small increases in the levels of CO2 can be harmful, causing health effects which could impair the pilot’s judgement during critical manoeuvres. Maintaining safe O2 levels is also vital for working safely under water. The Sub Aspida provides a quick response so that immediate action can be taken. The Sub Aspida is commonly used in submersibles, clipped onto the operator panel, but can just as easily be worn on the belt by an operator for portable, personal protection. It can be used as a back-up to the primary routine atmosphere monitoring system on a submarine or in confined spaces (like the ballast tank) which may not be covered by the primary routine atmosphere monitoring system.

Specification:

• Operating temperature: 0°C to +50°C
• Operating pressure: 800 to 1200 mbar
• Humidity Range: 0 to 99% RH
• Display: High-visibility, Organic Light Emitting Diode (OLED) display
• Alarm horn: 95dB @ 30cm
• LED indicators: 1 x Green - OK, 1 x Amber - Fault, 1 x Red - Alarm
• Internal data log: 1 log every 30 seconds for at least 7 days of continuous use
• Batteries: 2 x NiMH 2100mAh AA batteries (or suitable AA type batteries)
• Battery discharge time: 12 hours under normal operation (passive atmospheric monitoring,
• minimal user interaction, no alarms)
• Battery lifespan: 2 years
• Battery charge time: 4.5 hours (from flat)
• Charge power supply rating: 9 V DC - 0.55A, DC jack 5.5x12.0x2.1mm centre +ve
• Calibration adapter max flow: 0.5 l/min
• Electronics warranty: 2 years
• IP rating: IP65
• Dimensions: 127 x 44 x 90 mm (LxDxW)
• Weight: Dual 335g, O2, 350g, CO2 335g

CO2 Sensor:

• Sensor type: Analox infrared MIR
• Range: 0.01 to 50.00 mbar ppCO2 (0.01 to 5.00% at 1000mbara)
• Accuracy (at standard temperature and pressure): ±(1% of full scale+ 2% of reading)
• Response time: T90 <60 seconds
• Sensor life span: 5 years

O2 Sensor:

• Sensor type: electrochemical
• Range: 0.1 to 2000.0 mbar ppO2 (0.1 to 100.0% O2 at 1000mbara)
• Accuracy (at standard temperature and pressure): ±1% of full scale
• Response time: T90 <30 seconds
• Sensor life span: 1 year (expected)