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Product Overview

1) Product overview

Product Features

- SJG-2083CS Online Acid & Alkali Concentration Meter from Shanghai Boqu Instrument Co., Ltd. is a smart, online digital instrument that measures solution conductivity and calculates concentrations of acids and alkalis (examples: NaCl, HCl, HNO3, NaOH, KOH, H2SO4) using a digital inductive conductivity sensor.

Product Value

- Key specs: conductivity 0–2000 mS/cm, KOH concentration ranges to 26% and 26–42% (model-graded), TDS to 130,000 mg/L, salinity to 80 g/L, temperature -40°C to 150°C, accuracy ±1% FS and ±0.5°C. Power 90–260 VAC, protection IP65.

Product Advantages

2) Product features

Application Scenarios

- Inductive conductivity sensing (digital) for contactless measurement, long service life and low maintenance.

- Multi-parameter outputs: conductivity, TDS, salinity, specific acid/base concentrations and temperature.

- Communication and control: RS485 Modbus, two isolated 4–20 mA outputs, and two relay outputs for high/low alarms.

- Built-in data recording and historical curve review for trend analysis.

- Robust industrial design: wide power input (90–260 VAC) and IP65 protection.

3) Product value

- Enables continuous, real-time concentration monitoring to keep chemical processes stable and safe.

- Reduces chemical waste and rework by maintaining accurate acid/alkali dosing (cost savings).

- Supports process traceability and troubleshooting with logged data and historical curves.

- Facilitates remote integration with PLC/SCADA via standard outputs (Modbus, 4–20 mA) for automated control and alarm handling.

4) Product advantages

- High reliability and long sensor life due to inductive (non-contact) measurement principle; lower maintenance vs. contact probes.

- Fast, accurate digital sensing optimized for acid/base concentration measurement across a wide temperature range.

- Versatile outputs and alarm relays simplify integration into existing control systems and local safety interlocks.

- IP65 enclosure and broad supply voltage make it suitable for varied industrial environments and international deployment.

- Manufactured to international quality norms by an established vendor (BOQU), with local support available.

5) Application scenarios

- Thermal power plants (feedwater/condensate and chemical dosing control).

- Chemical manufacturing and processing (real-time monitoring of reaction or bath concentrations).

- Ion-exchange plants and high-purity water production (regenerant concentration control).

- Boiler and pipe pickling operations (preparing and controlling pickling solutions).

- Any industrial wastewater, corrosion control or process line requiring continuous acid/alkali concentration monitoring and automated control.