OxyGuard - Model Polaris C CO2 -Portable Analyzer

The OxyGuard Polaris C CO2 measures the free dissolved CO2 directly and is not affected by carbonates or other dissolved substances. It is the free dissolved CO2 – in other words the CO2 gas partial pressure – that affects the fish. The OxyGuard Polaris C CO2 thus gives simple, continuous and direct measurements of the amount of carbon dioxide in the water that will affect the fish.

The analyser is easy to calibrate using the front panel “slope” and “zero” adjustments – after which you just put the probe in the water and measure. There is a salinity adjustment. Calibration intervals are long, and the OxyGuard CO2 does NOT need regular maintenance.

• Units of measure: CO2: %vol and mg/l or ppm. Temperature: Celsius (°C), Fahrenheit (°F)
• Display: Graphical LCD display with variable backlight
• Types of probes: Optical
• Cable length: Standard 3 meters / 10 ft. By request, available at any length up to 100 m / 328 ft
• Operating temperature: Probe: -5°C to +40°C / + 23°F to + 104°F, Meter: -20°C to +60°C / -4°F to +140°F
• Meter water resistance: IP67-rated, allowing short-term immersion up to 1 m / 3 ft
• Response time: Typically 5-15 minutes at 20°C, depending on flow velocity. With low-flow conditions, up to 20 min.
• Flow requirements: A continuous water flow around the probe is necessary to maintain measurement accuracy.
• Measuring range: Standard: CO2: 0-5% volume, CO2: 0-50 mg/L / 0-50 ppm, temperature: -5°C to +40°C / + 23°F to + 104°F
• Measuring accuracy: Standard: Depends on calibration. Typically, ± 1% of measured value, temperature: ± 0.2° C / F
• Data logging capacity: Min. 3000+ sets of data with a maximum of 140 tag references
• Compensation ranges (manually set): 0-59 ppt, manually set
• Automatic check of: Probe function, meter function, cable and battery
• Automatic compensation: Temperature and barometric pressure (300-1200 mBar)
• Dimensions meter: Length = 98 mm / 3.86”. Diameter = 36 mm / 1.42”
• Dimensions probe: Length = 140 mm / 5.51”. Diameter = 40 mm / 1.57”
• Power: Single-cell Li-Ion battery pack with integrated battery protection circuitry. Nom. 3.7V, max. capacity 9Wh. UN38.3 certified
• Battery life: Up to 6,5 days of typical usage of 2 hr/day