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+GF+ 3-2820-1 - Level-Detect/Signal-Output - Compact Anti-Corrosion Liquid Level Sensor
| MOQ: | 1 |
| Price: | USD 100-10000/Piece |
| Standard Packaging: | 50*50*50mm |
| Delivery Period: | 3-7 |
| Payment Method: | T/T |
| Supply Capacity: | 1/piece in stock |
Mid-Range Conductivity/Resistivity Electrode — K=0.1 cm⁻¹, 316SS / ¾" NPT
The +GF+ Signet 3‑2820‑1 is a conductivity/resistivity electrode from the 2819–2823 series built for continuous ionic-strength measurement in liquid process loops. Key parameters: cell constant K=0.1 cm⁻¹, range 1–1,000 µS/cm (≈0.5–500 ppm TDS), accuracy ±2% of reading, with a built‑in PT1000 for automatic temperature compensation and a 3‑wire foil‑shielded 4.6 m cable (extendable to 30 m). The 316SS electrode and ¾" NPT reversible thread allow inline or submersion mounting, with PP fitting rated 6.9 bar @ 100 °C (optional 316SS: 13.8 bar @ 120 °C). It interfaces directly to Signet 8850/8860/5800CR/8900/9900 platforms (typically via 2850 sensor electronics) for a conditioned 4–20 mA or digital (S³L) output to the PLC/DCS.
Where It's Used, Core Function & Advantages
Its core automation function is to supply a stable, temperature‑compensated conductivity/resistivity signal so the control layer can enforce RO/DI quality interlocks, rinse‑cycle acceptance limits, regeneration trigger logic, and TDS/alarm logging without operator guesswork. Typical deployments include RO/DI make‑up, boiler condensate monitoring, rinse‑water recovery, and USP‑adjacent purified‑water loops where the K=0.1 sweet spot catches moderate ionic content that ultra‑pure (K=0.01) cells would miss. Advantages are the controlled electrode surface finish for repeatability, no platinization maintenance, reversible NPT design for fast retrofit into existing standpipes or tees, and optional NIST‑traceable certification for audit‑driven facilities — keeping water‑quality control both precise and low‑maintenance.
Product Specifications: 3-2820-1
| Parameter | Specification |
|---|---|
| Manufacturer / Brand | +GF+ / Georg Fischer Signet |
| Product Type | Conductivity / Resistivity Electrode |
| Model Number / Part No. | 3-2820-1 / 198 844 000 |
| Cell Constant (K) | 0.1 cm⁻¹ |
| Conductivity / Resistivity Range | 1 ~ 1000 µS/cm / 0.5 ~ 500 ppm |
| Electrode Material / O-Rings | 316 Stainless Steel / EPR (Ethylene Propylene) |
| Process Connection | 3/4″ Male NPT (reversible threads) |
| Temperature Compensation | PT-1000 Platinum RTD |
| Accuracy / Cable Length | ±2% of reading / 4.6 m (15 ft) standard, max 30 m (100 ft) |
| Operating Temp. / Pressure (316 SS) | 0 ~ 55 ℃ (32 ~ 130 ℉) / 13.8 bar @ 120 ℃ (200 psi @ 248 ℉) |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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