Cảm biến đo mức Gestra NRGT 26-2 NRGT 26-2s

Technical data
Model and mechanical connection

■ NRGT 26-2: Thread G3⁄4 A, EN ISO 228-1
■ NRGT 26-2s: Flange DN 50, PN 40, DIN 1092-01

Nominal pressure rating, admissible service pressure and temperature

■ NRGT 26-2, NRGT 26-2s: PN 40, 32 bar (g) at 238 °CMaterials
■ Terminal box: 3.2581 G AlSi12, powder-coated
■ Sheath: 1.4301 X5 CrNi 18-10

■ Electrode rod insulation: PTFE
■ Screw-in body: 1.4571, X6CrNiMoTi17-12-2■ NRGT 26-2s:

◆ Flange 1.0460 P250GH

◆ Spacer disc PTFE
Max. installed length at 238 °C, all measurements in mm

• See “How to order”, tables in Fig. 1, Fig. 2
• Do not shorten the electrode rod.Measurement qualityThe information below applies to a compensated uid con- ductivity range from 100 – 10000 μS/cm based on 25 °C.

  ■ Reading error: +/- 1 % of set measuring range at the operating point

  ■ Resolution of reading on display: 0.1 %■ Resolution for internal processing:

  15 bits with plus or minus sign (16 bits)

  ■ Resolution of 4-20 mA output:
  15 bits equivalent to 0.49 μA/digit

  Supply voltage

  ■ 24 V DC +/-20 %Power consumption■ Max. 7 VA
  Current input

  ■ Max. 0.3 A

  Internal fuse

  ■ T2A

  Safety cutout at excessive ambient temperature

  ■ The cutout takes place at an excessive ambient tempera- ture of Tamb. = 75 °C

  Analogue output

  ■ 1 x actual value output 4 – 20 mA, proportional to level, galvanically isolated

  ■ Maximum output load 500 Ω
  ■ M12 connector, 5-pole, A-coded