12
NRS 1-56 - Installation & Operating Manual -
850142-00
Technical data
Supply voltage
■
■
24 V DC +/-20 %
Power consumption
■
■
Max. 2 VA
Current input
■
■
Max. 0.2 A
Required external fuse
■
■
0.5 A M
Inputs for connecting level electrodes
■
■
4 x inputs for level electrodes: NRG 10-52, NRG 16-52; NRG 16-36, NRG 16-4,
four-pin with shield
Electrode voltage
■
■
5 Vss
Sensitivity (water conductivity at 25 °C)
Switchable
■
■
> 0.5 μS/cm < 1000 μS/cm
or
■
■
> 10 μS/cm < 10,000 μS/cm
Alarm 1/Alarm 2 outputs
■
■
2 x volt-free relay contacts, contact material AgNi0.15, AgSnO2
■
■
Maximum switching current - 8 A at 250 V AC / 30 V DC - cos
ϕ
= 1
■
■
Inductive loads must have interference suppression (RC combination) as specified by the
manufacturer
Off delay of Alarm 1/2 outputs
■
■
3 seconds, factory set.
Pump output
■
■
1 x volt-free relay contact, contact material AgNi0.15, AgSnO2
■
■
Maximum switching current - 8 A at 250 V AC / 30 V DC - cos
ϕ
= 1
■
■
Inductive loads must have interference suppression (RC combination) as specified by the
manufacturer
Required external fuse for output contacts
■
■
T2.5A
