| Item Description | Level switch, pump ON/OFF, min- / max-alarm, 4-20MA output / level switch NRS 2-51 connection for level electrode, level transmitter (switch-selectable): 1 input for level electrode NRG 21-.. / NRG 26-21 or 1 analogue input 4-20 MA, e. G. For level transmitter NRGT 26-1. Outputs: 3 volt-free change-over contacts for pump, min- and max alarm de-energizing delay: 3 seconds 1 analogue output 4-20 MA, max. load 500 ohm, e. G. For actual-value indication. Indicators and adjusters: 1 rotary button with integrated pushbutton "test" for simulating min, max alarm and setting the parameter, 1 seven-segment LED display, four digits, green 2 red leds for min / max alarm, 1 amber LED, e. G. For "feedwater pump on", 1 code switch, 4 poles, for configuration supply voltage: 24 VDC, + / -20 %, 0.1 A |