Online Ion Meter Digital Water Hardness Meter From China

Product Overview

- Model: BOQU PXG-2085Pro — an online nitrite ion (NO2-) meter manufactured by Shanghai Boqu Instrument Co., Ltd.

- Purpose: continuous, real?time monitoring and control of nitrite ion concentration in water using ion?selective electrode (ISE) technology with a molded nitrite PVC membrane.

- Design highlights: microcomputer?based controller with user?friendly interface, local data logging and IP65 protection for field use; multiple installation options (panel/wall/pipe).

Product Features

- Measurement range: very wide NO2- span up to 0–1000 mg/L (typical detection from 0.02 ppm), with multi?step resolution (0.01 / 0.1 / 1) and corresponding accuracies (±0.01 / ±0.1 / ±1 ppm).

- Sensor: replaceable molded nitrite PVC membrane ISE with working life >1 year (site?dependent).

- Outputs and control: 2 × 4–20 mA outputs (max load 500 Ω), RS485 Modbus RTU communication, and 3 relays (High / Low control and Clean) with adjustable relay delay.

- Auxiliary features: temperature compensation (Pt1000/NTC), local data recording (1,000 entries) and history curve, anti?electromagnetic interference, surge protection, power?off data protection.

- Power and environment: wide power supply 90–260 VAC; operating ambient 0–70 °C; storage ?20–70 °C; IP65 enclosure.

Product Value

- Reliable, continuous nitrite monitoring enables better process control, regulatory compliance and faster response to exceedances.

- Low lifecycle cost due to long?life, replaceable sensor membrane and reduced maintenance frequency.

- Data logging and digital outputs support integration with SCADA/DCS and traceability for audits and process optimization.

- Robust construction and wide power compatibility make it suitable for varied field deployments worldwide.

Product Advantages

- Wide dynamic range and high precision across low to high nitrite concentrations.

- Cost?efficient maintenance: replaceable membrane extends sensor life and lowers downtime and spare part costs.

- Flexible interfacing: analog, relay and Modbus outputs enable easy automation and alarm actions.

- Durable and safe: IP65 protection, anti?interference and surge protection, plus power?off data protection.

- Easy installation and operation with multiple mounting options and multilingual display (English/Traditional Chinese).

Application Scenarios

- Wastewater and effluent monitoring (municipal and industrial) for discharge control and compliance.

- Industrial process water monitoring (chemical, pharmaceutical, metallurgical).

- Food & beverage process control where nitrite levels must be tracked.

- Agriculture and aquaculture: irrigation runoff, fertilizer/nutrient monitoring and fish farming water quality.

- Environmental monitoring stations and remote online monitoring integrated with SCADA/automation systems.