Description
The compact systems NRGS 11-1 and NRGS 16-1 work according to the conductivity measurement principle. With the NRGS 16-1 a maximum of 4 levels can be signalled in conductive liquids:
High-level alarm, Low-level alarm, pump ON, pump OFF with one switchpoint each.
The NRGS 1...-1 has a switching controller integrated in the electrode terminal box. External switchgear is not required. The NRGS 11-1 / NRGS 16-1 are designed to detect and signal different levels in conductive liquids. They are appropriate for use in the power supply, water and chemical industries and particularly suitable for applications in steam boilers and feedwater tanks.
Designs
NRGS 11-1 screwed 1" BSP (DIN ISO 228)
NRGS 16-1 screwed 1" BSP (DIN ISO 228)
NRGS 16-1 S flanged DN 50, PN 40, DIN 2635, for marine applications
Technical Data
Type Approval
N° NRGS 16-1: TÜV · WRB · 01-388
NRGS 16-1 S: GL 99250-96 HH LR 98/20075 RiNA No ELE / 30298/1
Max. service pressure
NRGS 11-1: 6 barg at 159 °C
NRGS 16-1 / NRGS 16-1S: 32 barg at 238 °C
Connections
Screwed 1" BSP, DIN ISO 228
Flanged DN 50, PN 40, to DIN 2635
Materials
Case: Die cast aluminium 3.2161 (G AlSi8Cu3)
Stem: Stainless steel 1.4571 (CrNiMoTi17-12-2)
Flange: Forged steel 1.0460 (C 22.8)
Measuring electrodes: S. S. 1.4571
Electrode insulation: PTFE
Spacer disc: PTFE
Lengths supplied
500 mm
1000 mm
1500 mm
Mains supply
230 V +/– 10 %, 50/60 Hz
115 V +/– 10 %, 50/60 Hz
24 V +/– 10 %, 50/60 Hz (option)
Power consumption
5 VA Fuse Thermal
fuse
Tmax = 102 °C
Sensitivity Range
1: 10 μS/cm Range 2: 0.5 μS/cm
Electrode voltage
10 Vss
Output
4 volt-free relay contacts. Max. contact rating with a switching voltage of 24 V, 115 V and 230 V a. c.: resistive 4 A, inductive 0.75 A at cos ϕ 0.5. Max. contact rating with a switching voltage of 24 V d. c.: 4 A Contact material: silver, hard-gold plated.
Energizing/deenergizing
delay: 3 sec., factory set
Indicators and adjustors
4 red LEDs for signalling “electrode submerged”, “output relay energized” One 4-pole code switch for changing sensitivity
Cable entry
Cable glands with integral cable clamps 2 x PG 9 (M 16) 1 x PG 16 (M 20)
Protection
IP 65 acc. to DIN EN 60529
Max. permissible ambient temperature
70 °C (158 °F)
Weight approx.
1.8 kg
Gestra NRGS 11_1 Gestra NRGS 16_1 Gestra NRGS 16_1S
The conductivity of the liquid is used to detect the liquid level. Some liquids are conductive, which means that they allow an electric current to flow through them. For the safe functioning of this device a mimimum conductivity of the liquid to be monitored is required. The conductivity measurement method can detect two conditions: electrode tip submerged or exposed, meaning switchpoint reached (or exceeded) or not yet reached. Before installation, the length of the electrode rod must be adapted to the switching levels, e.g. for max./min. alarm, controlling of a valve or pump.
Popular Tags :
Gestra NRGS 11_1 NRGS 16_1 NRGS 16_1S | Aquametro | Ari Armaturen | Asahi | Beru | Condor | Danfoss | DelVal |
Other product from brand
Gestra Steam trap DK 45
Gestra Level Electrodes NRG
Gestra Ball Float Steam Traps UNA 45 46
Gestra Pressure Reducing Valve Type 5801
Gestra Cooling Water Control Valves CW 44 Pressure Reducing
Gestra Simple Cooler PK 40
Gestra Ball Float Steam Traps | Steam Equipment
Gestra Thermostatic Steam Traps MK
Gestra Steam Trap UNA 27
Gestra Steam Trap BK 46 PN 40 DN 15 20 25
Gestra Ball Float Steam Trap UNA 38 PN 100 DN 15 to DN 50
Gestra vaposcope vk 14 vk 16
Gestra NRGS 11_2 NRGS 16_2
Gestra Thermostatic Steam Trap MK 36 A7
Gestra Thermodynamic Steam Traps DK | Steam Equipment
Related Products
Yoshitake Steam Trap TSD 42 TSD 42F
Gestra Thermostatic Steam Trap BK 212 ANSI 2500
Gestra Drainage Module QuickEM
Gestra Thermodynamic Steam Traps DK | Steam Equipment
Adca FLOAT AND THERMOSTATIC STEAM TRAPS FLT 20
Gestra NRGS 11_1 NRGS 16_1 NRGS 16_1S
Gestra Simple Cooler PK 40
Adca float and thermostatic steam trap FLT 21
Gestra Steam Trap DK 47 DK 57
Yoshitake Steam Trap TD 10NA
Gestra Steam Trap BK 46 PN 40 DN 15 20 25
Yoshitake Steam Traps
Adca Steam Trap DT40 2
Gestra Thermostatic Steam Traps BK
Gestra Thermostatic Steam Trap BK 15 ANSI 300
Adca Float and Thermostatic Steam Traps
Gestra Ball Float Steam Trap UNA 38 PN 100 DN 15 to DN 50
Yoshitake Steam Trap TSF 10 TSF 10F
Gestra Thermostatic Steam Trap MK 35 31
Yoshitake Steam Trap Tsf 8