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Gestra




 
Gestra Level Electrode NRG 19-50
The level electrodes NRG 1...-50 are used in conjunction with level switch NRS 1-50 as water level limiters for steam boiler plants and (pressurised) hot water installations. Water level limiters switch off the heating when the water level falls below the set minimum level (low water).
 
 

 
Gestra Level Electrode NRGT 26-1
The compact system NRGT 26-1 works according to the capacitance measurement principle. The NRGT 26-1 is designed for signalling different levels in conductive and non-conductive liquids: ■ Water level maintained within the control band defined by two preset limits. The NRGT 26-1 has a level transmitter integrated in the terminal box which produces a standard output signal of 4-20 mA. External switchgear is not required.
 
 

 
Gestra Level Electrode NRG 19-11
(Obsolete, replaced by Gestra Level Electrode Type: NRG 19-50) - NRG 19-11 detects the min. liquid level (low level alarm) in a steam boiler. The operation of the electrode is based on the conductivity measuring principle using the electrical conductivity of water for signalling one liquid level.
 
 

 
Gestra Level Controller NRS 1-7b
(Obsolete, replaced by Gestra Low Level switch Type: NRS 1-50) - NRS 1-7 is a two-channel unit provided with an automatic self-checking circuitry in accordance with DIN VDE 0116 (directives for protection circuits). The self-checking is effected periodically.
 
 

 
Gestra Level Controller NRS 1-50
The level switch NRS 1-50 is used in conjunction with level electrode NRG 1...-.. to limit the water level in steam boilers and (pressurised) hot-water plants.Water level limiters switch off the heating when the water level falls below the set minimum level (low water).