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Total hardness measuring range: 0.02 - 5 °dH [0.02 / 0.05 / 0.1 / 0.2 / 0.3 / 0.5 / 1 / 2 / 3 / 5] °dH Limit value indication (not exceeded or exceeded: green / red LED) Modern reagent pump system and self-cleaning measuringchamber Automatic measurement with low water consumption Direct error and reagent quantity indication Automatic or manual internal flushing of the measuring chamber Control of an external rinsing valve 3 potential-free relays: - External rinsing valve control - Limit value evaluation - External control and / or alarm processing Safety check for 72 hours operation without supervision Reagent quantities: 100 and 500 ml bottles 4-20 mA interface for defined status and error messages RS 232 interface for firmware updates Dimensions: B x H x D: 364 x 314 x 138 mm

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