+GF+ 3-2819-1 2819 Series Conductivity Electrode Precision Pure Water Monitoring Solution

The +GF+ 3-2819-1 is a high-performance conductivity electrode from Georg Fischer's SIGNET 2819 series, specifically engineered for ultra-pure water and low-conductivity applications . With an extremely low cell constant of K=0.01 cm⁻¹, this precision sensor is the industry standard for applications requiring accurate measurement in the 0.055 to 100 μS conductivity range, including pharmaceutical water systems, semiconductor manufacturing, power generation, and high-purity water treatment .

Key Technical Specifications

The +GF+ 3-2819-1 represents the pinnacle of Georg Fischer's electrode technology, delivering exceptional performance for critical measurement applications:

Cell Constant: 0.01 cm⁻¹ (ultra-low for pure water applications) 

Measurement Range: 0.055 – 100 μS (0.02 – 50 ppm concentration range) 

Electrode Material: Platinum-plated electrodes with 316 Stainless Steel body 

Temperature Sensor: Integrated PT-1000 platinum RTD for optimal temperature compensation 

Mounting Thread: 3/4" NPT(M) with removable/reversible fitting design 

Accuracy: ±2% of reading 

Cable Length: 4.6 meters (15 feet) standard, extendable up to 30 meters 

Operating Temperature/Pressure:

PP Fittings: 6.9 bar @ 100°C

316 SS Fittings: 13.8 bar @ 120°C

Sanitary Connections: 6.9 bar @ 120°C 

Wetted Materials: EPR O-rings, PTFE insulation, 316 SS or Titanium electrode options 

Part Number / Order Code: 198844010 

Model Variations and Accessories

The 2819 series includes several configuration options to meet diverse application requirements:

Threaded Versions:

3-2819-1 (198844010): Standard 316 SS, 3/4" NPT(M) 

3-2819-1C (159000651): Certified/calibrated version 

Sanitary (Tri-Clamp) Versions:

3-2819-S1 (159000085): 1.5" sanitary flange, 316 SS electrodes 

3-2819-S2 (159000086): 2" sanitary flange, 316 SS electrodes 

3-2819-T1/T2: Titanium electrode versions for specialized applications 

Accessories:

Extension cables (up to 30m total length)

Mounting fittings in PP, 316 SS, and PVDF materials

Calibration certificates and kits 

Why Choose the +GF+ 3-2819-1?

For engineers, procurement specialists, and maintenance professionals seeking a reliable ultra-pure water conductivity sensor, the +GF+ 3-2819-1 offers:

Unmatched Low-Range Accuracy: The K=0.01 cell constant provides optimal sensitivity for the purest water applications 

Proven Technology: Backed by Georg Fischer's decades of leadership in fluid handling and instrumentation

Global Availability: Standardized design with worldwide distributor support through Cole-Parmer and authorized GF SIGNET partners 

Long-Term Reliability: Robust construction with corrosion-resistant materials ensures extended service life

Complete System Solution: Full compatibility with GF SIGNET transmitters, fittings, and accessories for turnkey installation 

Ordering Information

When ordering the +GF+ 3-2819-1, specify:

Model: 3-2819-1 (K=0.01, 316 SS electrodes, 3/4" NPT(M))

Order Code: 198844010 

Alternative Configurations: Available with titanium electrodes, sanitary fittings, or certified calibration as 3-2819-1C, 3-2819-S1, etc. 

For systems requiring higher conductivity ranges, consider the companion models:

3-2820-1 (K=0.1): 1.0 – 1,000 μS

3-2821-1 (K=1.0): 10 – 10,000 μS

3-2822-1 (K=10.0): 100 – 200,000 μS 

The +GF+ SIGNET 3-2819-1 represents the gold standard in ultra-pure water conductivity measurement, combining precision engineering with the reliability expected from the Georg Fischer brand. Whether for pharmaceutical, power, or semiconductor applications, this sensor delivers the accuracy and durability required for critical process monitoring.