35 Comparative Measurement on Grid Rack Application Definition of Task Solution + + + + Rectangular channel 0.8 x 0.8 m (w x h) Low-pitched sensor installation points Covers on rectangular channels must not be opened Ex zone 1 + + + + Measurement of primary and secondary impoundage to calculate switching thresholds for grid rack operation Maximum primary impoundage has to engage an emergency bypass Level difference, primary and secondary impound

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