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S2Ba ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ S2Ca ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ Control elements: overview 1 Operating light (green) 2 Warning light (yellow) 3 Error warning light (red) 4 Stroke length adjuster 5 LCD display 6 UP key 7 DOWN key 8 P key 9 STOP/START key 10 i key 11 Relay output (optional) 12 Metering monitor socket 13 Float switch socket 14 External control socket 15 Diaphragm rupture indicator socket 16 Mains switch Key functions In continuo