The OxyGuard Polaris C CO2 Handy is a reliable and easy to use instrument that measures the free dissolved carbon dioxide concentration directly in the water. The CO2 concentration is shown on the display, and there is an analogue output.
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
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