BALLASTWISE SPECIFICATIONS

Weight

6.4kg

Dimensions

38 x 31 x 18 cm (l x h x w)

Power Requirements

24V DC, 1,25A (100 – 250V mains adapter or from external computer battery bank)

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Optical Resolution

2.4µm (10 – 50µm), 22µm (> 50µm)

Organism Sizes

Calculated for each individual as equivalent ellipse minor axis. Minimum detection width = 2x optical resolution.

Velocity Range

0.024 – 0.6mm/s (10 – 50µm), 0.22 – 22mm/s (> 50µm)

Sampling Accuracy

10 – 50µm

10 ± 50%, 20 ± 30%, 30 ± 20%, calculated per mL at 95% confidence.

Sampling accuracy

> 50µm

10 ± 30%, 20 ± 25%, 30 ± 20%, calculated per L at 95% confidence.

Max Concentrations

20,000 per unit volume (mL, L)

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Measurement Time

20-30min

Sample Sizes

400 mL 10-50µm, 650 mL for >50µm

Chl a Detection

Approx. 5% of a single Tetraselmis suecica (reference organism) cell content (10 – 50µm)

Output

Video files (optional), tab-separated data files (position and size) for each organism at each point in time

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Reports

Final result counts with risk assessment, size distributions (optional), track plots (optional)

Minimum Computer Requirements

8GB RAM, quad core CPU (PassMark CPU benchmark > 10,000), hard drive write speed > 120MB/s (PassMark Hard Drive benchmark > 7,000)

Minimum Screen Resolution

1600 x 900