6
NRS 2-4
Input measuring circuit
1 V to 10 V DC (measuring voltage coming from level electrode)
Output measuring circuit
12 V DC (supply voltage for level electrode)
Output
2 volt-free relay contacts. Max. contact rating with switching voltages of
24 V, 115 V and 230 V AC: resistive 4 A, inductive 0.75 A at cos
j
0.5.
Max. contact rating with switching voltage 24 V DC: 4 A. Contact material silver, hard gold plated.
2 optocouplers (NPN), short-circuit protected due to current limiting, max. 70 V, 10 mA
Indicators and adjustors
1 LED for “Alarm”, 2 LEDs for “Malfunction”, 1 LED for “Power”
Mains voltage
18 - 36 V DC
Power consumption
2 VA
Housing material
NRS 2-4c: Front panel: aluminium
NRS 2-4d: Front panel: aluminium
Weight
NRS 2-4c/d: aprox. 0.6 kg
Technical Data
