Expert in Water Quality Measurement and Water Treatment Project Since 2007
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.