Signet Conductivity Sensor | 2818-2823 Series

Signet Conductivity Sensor | 2818-2823 Series

Signet Conductivity Sensor  – Overview

These Conductivity/Resistivity Electrodes are designed to provide versatile installation and accurate sensing across a very broad and dynamic range. They have a controlled surface finish to ensure accuracy and repeatability. The standard electrode is constructed out of 316 SS, but there are other materials available for maximum chemical compatibility (Titanium, Monel and Hastelloy-C). Reversible threads or sanitary flanges allow for maximum installation versatility. Sanitary flange versions are available in either SS or Titanium with a quality surface finish of less than RA 25. An optional NIST Traceability Certificate (to meet USP requirements) is available. Coupled with GF Signet patented measuring circuitry, a platinum RTD (PT1000) located within the electrode allows optimal temperature sensing.

Signet Conductivity Sensor  – Features

  • Standard process connections
    • ¾” NPT Polypro
    • Tri-clamp 1½”, 2”
    • Opt. 1/2” NPT 316 SS
  • 316 SS or Titanium standard electrode
  • Alternative electrode materials available
    • Hastelloy-C
    • Monel
  • In-line or submersible mounting
  • NIST traceable, certified cells ±1% meet USP requirements

Description

Signet Conductivity Sensor | 2818-2823 Series

General
Cell Constant
2818 .0.01 cmˉ¹
2819 0.01 cmˉ¹
2820 0.1 cmˉ¹
2821 1.0 cmˉ¹
2822 10.0 cmˉ¹
2823 20.0 cmˉ¹
Operating Range:
2818
0.055 to 100 μS (10 kΩ to 18.2 MΩ)
2819
0.055 to 100 μS (10 kΩ to 18.2 MΩ)
2820
1 to 1000 μS (1 kΩ to 1 MΩ)
2821
10 to 10,000 μS (5 to 5000 ppm)
2822
100 to 200,000 μS (50 to 100,000 ppm)
2823
200 to 400,000 μS (100 to 200,000 ppm)
Cell Constant Accuracy
±2% (certified cells ±1%)
Temp. Compensation Device PT1000
Cable Length Standard 4.6 m
Maximum 30 m
2818 & 2819-1
7.6 m max. when used with 8850 & 8860. Do Not splice cable.
Sanitary fitting size
1 in., 1½ in., 2 in.
Wetted Materials
O-Rings EPR (EPDM)
Electrodes
316L Stainless Steel (1.4408, DIN 17440) or Titanium
Sanitary fitting
316L Stainless Steel or Titanium
2822 Body CPVC
Insulator Material 2818/2819/2820/2821
Carbon fibre reinforced PTFE
2823 PEEK®
Process Connection
¾ in. NPT threads; Standard 316 SS fitting & Optional 316 SS submersion adapter fitting (3-2820.390)
Shipping Weight 2818/2819/2820/2821/2822 0.4 kg
2823 0.3 kg
Environmental Requirements
Temperature Accuracy 0.3 °C
Max. Pressure/Temperature Ratings
2818/2819/2820/2821 Fittings:
Standard Polypropylene …..6.9 bar @ 100 °C
(3-2820.392) ½ NPT 316 SS …13.8 bar @ 120 °C
Sanitary Connection ………..6.9 bar @ 120 °C
2822
6.9 bar @ 95 °C
2823
6.9 bar @ 150 °C
Standards and Approvals
RoHS Compliant
China RoHS

Alternate wetted materials (such as Titanium, Hastelloy-C and Monel) are available through special order.

Cable length extensions to 30 m (100 ft.) are available through special order.

When using the ProcessPro 8850 or 8860: For resistivity measurements above 10 MΩ and/or below 20 °C, maximum cable length is 7.6 m.

Signet Conductivity Sensor | 2818-2823 Series

Brand

Georg Fischer

georg Fischer Signet logo

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