Product Introduction
The GT300-E sludge electromagnetic flowmeter applies special converter and sensor technology, making it a model optimized for measuring sludge and wastewater, specifically tailored for fluids containing high amounts of solids or debris. It measures flow rate based on the principle of Faraday's law of electromagnetic induction. It can measure fluids with a conductivity of 5 Micro Siemens or higher, even if solid components are present in the fluid. With no moving parts, it offers excellent durability and a long lifespan, while providing a much larger turndown ratio (100:1) compared to mechanical flowmeters (e.g., turbine meters).
Product Features
- Wear-Resistant Lining: Adopts polyurethane or hard rubber lining resistant to sludge, ensuring a long lifespan.
- Electrode Contamination Prevention: Reduces measurement errors through an electrode design that minimizes solid adhesion.
- High-Viscosity Compatibility: Designed to enable precise measurement even in high-viscosity sludge with slow converter flow velocity.
Excellent Pressure Loss Prevention: Designed with a structure that has no moving parts or components inside, resulting in zero pressure loss during measurement.
- Industrial Communication Support: Supports RS-485 Modbus communication as a standard feature, making data linkage with upper-level control systems highly convenient.
Applications
1. Sewage and Wastewater Treatment Processes
- Concentrated Sludge Transfer: Precise measurement of the transfer volume of high-concentration sludge generated from sedimentation tanks in sewage treatment plants.
- Dewatering Cake Pre-stage Process: Measurement and management of fluids with high moisture content prior to entering the sludge dewatering machine.
- Industrial Wastewater Discharge: Flow monitoring of factory wastewater containing abrasive particles such as metal fragments and sand.
2. Mining, Construction & Civil Engineering Sites
- Ore Slurry Measurement: Measurement of mixtures of fine ore powder and water generated from mineral processing lines inside mines.
- Grouting Process: Management of the injection volume of cement milk and clay mixtures at civil construction sites. Dredging Process: Verification of the transfer volume in dredging pipelines that pump up sand and muddy water from riverbeds or seabeds.
3. Paper and Pulp Industry
- Pulp Raw Material Transfer: Flow control within the production process for high-concentration fibrous slurry used as the raw material for paper.
- White Water Recycling: Monitoring the recovery and reuse volume of process water mixed with fine fibers.
4. Chemical and Precision Manufacturing Processes
- Abrasive Mixtures: Transfer management of high-density abrasive slurry used in semiconductor or glass polishing processes.
- High-Viscosity Additives: Blending and supply systems for high-viscosity liquid raw materials containing particles.
General Specifications
| Accuracy |
표준: 유량의 0.5% (Span: 0.5~12m/s) 옵션: 유량의 0.2~0.3% (Span: 0.5~7m/s, DN300 미만) |
|---|---|
| Repeatability | ±0.15% |
| Electrode Q'ty | 3pcs. |
| Min. Conductivity | 5 Micro Siemens |
| Measuring range | 0.2 ~ 12m/sec (확장 시 0.1 ~ 15m/sec 가능) |
| Flow Direction | Bi-direction. |
| Diameter | DN6 ~ DN2,400mm |
| Medium Pressure | DN10~1000: 1.0, 1.6, 2.5, 4.0 MPa(Please consult with us if you order special pressure.) |
| Medium Temperature | -40 ~ +200°C |
| Material | Body: Steel painted, Stainless steel |
| Electrode: SUS316L, Titanium, Tantalum, Hastelloy, Tungsten Carbide, Platinum-Iridium | |
| Measuring Tube: SUS304 | |
| Lining: Chloroprene Rubber, PTFE, FEP, PFA, Polyurethane, Ceramic | |
| 보호 등급 (Meter Protection Level) | IP65, IP67(Remote type), IP68(Remote type) |
| Ambient Temperature | -25 ~ 60°C |
| Influence of Ambient Temperature | < ±0.1% / 10°C or < ±0.25% / 10°C |
| Repetition | ≤ ±0.15% |
| Measurement Range of Velocity | ≤ 12m/s |
| Transmitting Signal Converter | |
| Power | 85~240VAC, 50~60Hz (옵션 DC 20~36V) |
| Output |
표준: 4~20mA 및 0~10mA DC (Dual current output), RS485 옵션: RS232, HART, Profibus-PA |
| 아날로그 출력 오차 (Analog output error) | ≤ ±0.02mA |
| Display |
LCD-Flow rate(4자리), Totalizer(9자리), Velocity, Alarm status. 단위 선택: m³/h, L/sec, US Gal/min 등 사용자 지정 가능 |
| 제어 방식 (Control) | Key-board |
| 시간 상수 (Time constant) | 1 ~ 20초 범위 내 프로그래밍 가능 |
| Mounting | Integral Or Separate |
| Power consumption | 20VA 미만 |
| Enclosure | Weather proof IP65/IP66 |
| Electric Connections | Standard: 1/2” NPT Option: M20×1.5, PG13.5 (Plastic) |