System Description
High-level alarm with one level electrode
The switching controller NRS 1-41 is a self-monitoring
high-water level alarm, with automatic routine testing
(SMART) feature and output relay monitoring, to be used in
conjunction with one level electrode type NRG 16-41, 17-
41 or 19-41. The switching controller features the following
function:
? High-level alarm with one switchpoint
The equipment combination detects the max. water level
(high-level limiter).
Application in steam boilers and (pressurised) hot-water
installations in accordance with TRD 604, sheet 1 and 2
(24/72 hours operation without constant supervision) /
EN 12852 and EN 12953.
The equipment complies with the regulations on protection
circuits for firing equipment of furnaces DIN VDE 0116 (prEN
50156).
The level data are transferred from the electrode NRG
1...-41 to the switching controller via a designated CAN bus
using the CANopen protocol.