GF Signet 3-2821-T1C Conductivity-Resistivity Electrode 3-2821-T1C
Signet 3-28XX-XXX Paddlewheel Conductivity-Resistivity Electrode & Sensors
3-28XX-XXX 2819-2823 Conductivity-Resistivity Electrodes
Operating Range 3-2818, 3-2819: 0.055 to 100 µS - 18.2 MΩ to 10 KΩ - 0.02 to 50 ppm, Operating Range 3-2820: 1 to 1000 µS - 1 MΩ to 1 KΩ - 0.5 to 500 ppm, Operating Range 3-2821: 10 to 10,000 µS - 5 to 5,000 ppm, Cell Constant Accuracy: ±2% of reading (certified cells ±1%), Temperature Compensation...
Signet Conductivity/Resistivity electrodes are designed to provide versatile installation and accurate sensing across a very broad dynamic range. These electrodes are built with a controlled surface finish to ensure accuracy and repeatability. The standard electrode is constructed 316 SS or Titanium, but there are other materials available for maximum chemical compatibility. Reversible threads or sanitary flanges allow for maximum installation versatility. Sanitary flange versions are available with surface quality finish of less than RA 25 and with an optional NIST Traceability Certificate to meet USP requirements. Coupled with Signet patented measuring circuitry, a three decade measurement range is achieved without the need for troublesome electrode platinization. A platinum RTD (PT1000) located within the electrode allows optimal temperature sensing.
- Pure Water Treatment: Reverse Osmosis, Deionization, Distillation
- Boiler condensate
- Semiconductor Water Production
- Rinse Water Monitoring and Control
- Chemical Concentrations
- Cleaner and Degreaser Concentrations
- TDS (total dissolved solids)
- Salinity
- USP Purified Water
- WFI Water Production
- Ultra Pure Water
- RoHS compliant
- China RoHS
- In-line or submersible mounting
- NIST traceable certified cells ±1% meet USP requirements
- Standard process connections
- ¾" NPT Polypro
- Tri-clamp 1 -1 1/2", 2"
- ¾ in. NPT SS on 10 and 20 cell
- Optional 1/2" NPT 316 SS
- 316 SS or Titanium standard electrode
- Alternative electrode materials available
- Hastelloy-C
- Monel
- Titanium
| Operating Range 3-2818, 3-2819 | 0.055 to 100 µS - 18.2 MΩ to 10 KΩ - 0.02 to 50 ppm |
|---|---|
| Operating Range 3-2820 | 1 to 1000 µS - 1 MΩ to 1 KΩ - 0.5 to 500 ppm |
| Operating Range 3-2821 | 10 to 10,000 µS - 5 to 5,000 ppm |
| Cell Constant Accuracy | ±2% of reading (certified cells ±1%) |
| Temperature Compensation Device | PT1000 |
| Cable Length (use for the 2818, 19, 20, 21, 22 and 23) 3-2818, 3-2819-1 sensors | 7.6 m (25 ft) max. when used with 8850, 8860. No splicing of cable. Call factory for special order sensor |
| Cable Length (use for the 2818, 19, 20, 21, 22 and 23) standard | 4.6 m (15 ft) |
| Cable Length (use for the 2818, 19, 20, 21, 22 and 23) maximum | 30 m (100 ft) all other sensors (except 2818 and 2819 max. 7.6 m (25 ft) |
| O-rings | EPR (EPDM) |
| Insulator Material | Carbon fiber reinforced PTFE |
| Electrodes | 316L stainless steel (1.4408, DIN 17440) or Titanium |
| Standard Polypro Fitting | 6.9 bar @ 100 °C - 100 psi @ 212 °F |
| Optional 1/2: NPT 316 SS fitting (3-2820.392) | 13.8 bar@ 120 °C - 200 psi @ 248 °F |
| Sanitary Connection | 6.9 bar@ 120 °C - 100 psi @ 248 °F |
| Temperature Response, 0.01 cell | 7 sec. |
| Temperature Response, 0.1 cell | 53 sec. |
| Temperature Response, 1.0 cell | 21 sec. |
| Temperature Accuracy | 0.3 °C |
| Cell Constant Accuracy | ±2% of reading (certified cells ±1%) |
| Temperature Compensation Device | PT1000 |
| Cable Length standard | 4.6 m - 15 ft |
| Cable Length maximum | 30 m - 100 ft |
| O-rings | EPR (EPDM) |
| Body | CPVC |
| Electrodes | 316 stainless steel (1.4408, DIN 17440) |
| Process Connection Standard 316 SS fitting ¾ in. | NPT threads |
| Process Connection Optional 316 SS submersion adapter fitting (3-2820.390) | ¾ in. NPT threads |
| Max. Temperature/Pressure Rating | 6.9 bar @ 95 °C - 100 psi @ 203 °F |
| Temp. Response | 5 seconds |
| Temp. Accuracy | 0.3 °C |
| Standards and Approvals | RoHS compliant, China RoHS |
| Operating Range | 200 to 400,000 μS - 100 to 200,000 ppm |
| Temperature Compensation Device | PT1000 |
| Cable Length standard | 4.6 m/15 ft |
| Cable Length maximum | 30 m/100 ft |
| Insulator Material | PEEK™ |
| Process Connection Electrodes | 316 stainless steel (1.4408, DIN 17440) |
| Process Connection Standard 316 SS fitting | ¾ in. NPT thread |
| Max. Temperature/Pressure Rating | 6.9 bar @ 150 °C - 100 psi@ 302 °F |
| Temp. Response | 120 seconds |
GF Signet 3-2820.392 optional 1/2-inch NPT 316 stainless steel fitting for compatible GF Signet 2819–2823 conductivity/resistivity electrodes.
