Điện cực đo mức nước Gestra NRG 16-61 NRG 17-61 NRG 19-61 NRG 111-61
Technical data
Model and mechanical connection
■ NRG 16-61 NRG 17-61 Thread G3⁄4 A, EN ISO 228-1
■ NRG 19-61 Thread G3⁄4 A, EN ISO 228-1
■ NRG 111-61 Thread G1 A, EN ISO 228-1
Nominal pressure rating, admissible service pres- sure and temperature
■ NRG 16-61 PN 40 32 bar (g) at 238 °C
■ NRG 17-61 PN 63 46 bar (g) at 260 °C
■ NRG 19-61 PN 160 100 bar (g) at 311 °C
■ NRG 111-61 PN 320 183 bar (g) at 357 °C
Materials
■ Terminal box 3.2581 G AlSi12, powder-coated
■ Sheath 1.4301 X5 CrNi 18-10
■ Electrode extension 1.4401 X5 CrNiMo 17-12-2
■ Electrode insulation
◆ NRG 16-61, NRG 17-61 PEEK
◆ NRG 19-61 PEEK and PTFE
◆ NRG 111-61 Special ceramic
■ Screw-in body:
◆ NRG 16-61, NRG 17-61, NRG 19-61
1.4571, X6CrNiMoTi17-12-2
◆ NRG 111-61
1.4529, X1NiCrMoCuN25-20-7
pH value
■ NRG 111-61 Maximum admissible = 10
Electrode lengths supplied
■ 500 mm, 1000 mm, 1500 mm
■ The electrode extension can be shortened
Conductivity range at 25 °C
■ NRG 16-61, NRG 17-61, NRG 19-61 0.5 μS/cm to 10,000 μS/cm
■ NRG 111-61 0.1 μS/cm to 100 μS/cm, with measuring surface extension
Sensitivity
■ 0.1 μS/cm at an immersion depth of 5 mm, with measuring surface extension
Supply voltage
■ 24 V DC +/-20 %
Power consumption
■ max. 7 VA
Current input
■ max. 0.3 A
Internal fuse
■ T2A
