GF Signet 3-2839-1V Conductivity/Resistivity Electrode
Signet 3-28XX-1XX Paddlewheel Conductivity-Resistivity Electrode & Sensors
3-28XX-1XX Conductivity-Resistivity Electrodes
Instrument Compatibility: 2850, 8850-3, 8860, 9900, Cable: 4.6 m (15 ft) std., 3 conductor with shield, 22 AWG, max length 30 m (100 ft). For resistivity measurements above 10 MΩ or below 20 °C, maximum cable length is 7.6 m (25 ft)., Process Connection -1V: 3/4 in. NPT, Process Connection 1VD: ISO...
The Signet 2839-1V(D) to 2842-1V(D) Conductivity/Resistivity Electrodes are available in four cell constants from 0.01 to 10.0 cm-1, and are suitable for a wide variety of applications from high purity water quality monitoring to weak acids and bases. 316 SS electrode surface finishes are controlled in a precision bead blasting operation to ensure measurement accuracy and repeatability. The PVDF insulator and process connections are injection over-molded to minimize variance between electrodes. Double threaded connections in either ¾ in. NPT or ISO 7/1-R 3/4 enable quick and easy installation in submersible or in-line configurations. Transmitter integral mounting kit and junction boxes are available as accessories. A Certificate of Calibration is included with all 28391-V(D) to 2842-1V(D) Conductivity/Resistivity Electrodes. The electrodes are calibrated to meet ± 2% accuracy. Electrodes can be shipped back to the GF Signet factory for recertification.
- Water Treatment and Water Quality Monitoring
- Reverse Osmosis
- Deionization
- Cooling Tower and Boiler Protection
- Distillation
- Desalination
- Demineralization
- Semiconductor
- Aquatic Animal Life Support Systems
- RoHS compliant
- China RoHS
- ±2% accuracy - Custom calibration certificate provided
- Dual-threaded
- Compact electrode length for easy in-line installation in small pipe sizes
- Triple orifice flow-through design reduces clogging and bubble entrapment
- 316 SS electrodes with injection-molded PVDF process connections and insulators
- Meets USP requirements
| Instrument Compatibility | 2850, 8850-3, 8860, 9900 |
|---|---|
| Cable | 4.6 m (15 ft) std., 3 conductor with shield, 22 AWG, max length 30 m (100 ft). For resistivity measurements above 10 MΩ or below 20 °C, maximum cable length is 7.6 m (25 ft). |
| Process Connection -1V | 3/4 in. NPT |
| Process Connection 1VD | ISO 7/1-R 3/4 |
| Threaded fitting | PVDF |
| Insulator | PVDF |
| Insulator O-ring (2841, 2842) | FPM |
| Electrode contacts | 316L stainless steel |
| Shipping Weight 2839 | 0.34 kg (0.74 lb) |
| Shipping Weight 2840, 2841, 2842 | 0.30 kg (0.66 lb) |
| Accuracy | ±2% of cell value |
| Temp. measurement | PT1000 |
| Temp. response time (T): 2839 | 5 s |
| Temp. response time (T):2840 | 10 s |
| Temp. response time (T):2841 | 20 s |
| Temp. response time (T): 2842 | 30 s |
| Operating Pressure / Temperature With thread engagement per ANSI B1.20.1 | -10 ºC to 100 ºC @ 6.9 bar (14 ºF to 212 ºF @ 100 psi) / -10 ºC to 131 ºC @ 2.76 bar (14 ºF to 268 ºF @ 40 psi) |
| Storage Temperature | -20 ºC to 131 ºC (-4 ºF to 268 ºF) |
