Calibrated under ISO 9001 and ISO 14001 benchmarks with rigorous 48-hour continuous burn-in validation before export to ensure zero-drift process execution.
Designed for continuous autoclave cycles, bio-fermenters, and harsh corrosive water chemistry. Built with polymeric gel electrolytes and high-temperature reference junctions.
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Features integrated Pt100/Pt1000 RTD elements for real-time automatic temperature compensation (ATC), critical for precision alkaline and acid neutralization dosing loops.
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Sanitary glass electrode construction certified for repeated SIP/CIP sterilization procedures in sterile fermentation vats, vaccines, and recombinant synthesis lines.
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Equipped with standard PG13.5 mechanical thread and S8 high-integrity coaxial plug for fast deployment and hermetic sealing in high-pressure inline sample streams.
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Honored with official Shanghai Brand recognition, providing superior mechanical resistance against glass crystallization and diaphragm poisoning up to 130°C.
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Reagentless amperometric controller continuous monitor for free chlorine (HOCl/OCl-), chlorine dioxide, and total residual chlorine with automatic pH drift compensation.
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Turnkey municipal secondary water supply workstation integrating free chlorine, turbidity, pH, electrical conductivity, and DO into a single industrial touch control rack.
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Intelligent IP65 wall-mount transmitter delivering dual galvanically isolated 4-20mA loops, RS485 Modbus RTU communication, and programmable limit relays for PID metering.
View SpecificationsModern disinfection processes demand real-time telemetry, zero chemical consumable waste, and robust immunity against hydrodynamic shear. How Chinese manufacturing leadership redefines global cost-to-performance metrics.
Unlike obsolete colorimetric DPD instruments requiring monthly liquid reagents and continuous disposal, Chinese smart analyzers implement dual-platinum or gold-membrane potentiostatic electrodes. They measure hypochlorous acid (HOCl) diffusion directly at the boundary layer without continuous chemical consumable costs.
Because HOCl and hypochlorite ions (OCl-) dissociate dynamically as water pH shifts between 6.5 and 8.5, BOQU controllers execute synchronized, microsecond pH and RTD compensation calculations, guaranteeing measurement precision within ±2% full scale across unstable municipal conditions.
Operating 4,632 m² of proprietary cleanroom sensor fabrication, CNC mechanical machining, and SMT circuit placement in Shanghai shields global customers from distributor markups, allowing agile custom firmware adaptations, private labeling, and shortened 7-day factory dispatch windows.
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Navigating the transition from standalone transmitters to cloud-integrated IoT sensory nodes across North America, Europe, the Middle East, and Southeast Asia.
Procurement engineers are replacing analog 4-20mA loops with smart digital RS485 Modbus RTU sensors. By embedding analog-to-digital converters within the electrode housing, signal attenuation over long distances is eliminated, transmitting raw mV, temperature, and diagnostics directly to DCS or SCADA nodes.
Biological slimes and mineral calcification foul polarographic membranes. Next-generation controllers feature integrated constant-flow acrylic cells with automated glass-bead rotary scouring or ultrasonic transducers, reducing manual servicing cycles from weekly tasks to semi-annual audits.
Overseas tenders demand strict adherence to WHO guidelines (maintaining ≥0.5 mg/L free chlorine after 30 min contact), US EPA drinking water standards, CE electromagnetic compatibility (EN 61326-1), and ISO environmental specifications—standards fully built into our manufacturing processes.
| Analytical Parameter | Sensing Principle | Typical Measurement Range | Primary Industrial Domains | Engineering Specification Insights |
|---|---|---|---|---|
| Free Residual Chlorine (HOCl/OCl⁻) | Constant-Voltage Potentiostatic (3-Electrode) | 0.00 to 20.00 mg/L (ppm) | Potable Water Treatment, Secondary Pump Stations, Cooling Towers | Requires steady flow rate (30-60 L/h) and concurrent pH monitoring for accurate dissociation indexing. |
| High-Temperature Process pH | Alkali-Resistant Glass Membrane with Gel Electrolyte | 0.00 to 14.00 pH (-10 to 130°C) | Pharma Bioreactors, SIP/CIP Sterilization, Food Synthesis | Equipped with S8/PG13.5 connectors; capable of handling repeated 130°C steam sterilizations without reference poisoning. |
| Dissolved Oxygen (DO) | Fluorescence Optical Quenching / Polarographic | 0.00 to 20.00 mg/L (0 to 200%) | Industrial Wastewater Aeration, RAS Aquaculture, Fermentation | Optical probes eliminate electrolyte replacement and flow velocity reliance; polarographic fits standard 25mm sanitary ports. |
| Electrical Conductivity & TDS | 4-Electrode Platinum / Inductive Toroidal | 0.01 µS/cm to 2,000 mS/cm | Power Station SWAS, Reverse Osmosis Permeate, CIP Lye Lines | Toroidal electrodeless sensors eliminate polar fouling in dirty solutions; 2-electrode sensors ensure ppb trace resolution. |
| Turbidity & Total Suspended Solids | 90°/135° Infrared Scattered Light (ISO 7027) | 0.01 to 4000 NTU / 0 to 50,000 mg/L | Clarifier Effluent, Surface Water Intake, Filtration Breakthrough | Built with integrated optical wiping wipers to prevent biofilm coating in high-suspended-solids environments. |
From municipal distribution rings in the Americas to high-temperature bioreactor controls across Europe and Asia, explore how our analytical instrumentation ensures chemical safety and process control.
Installed across urban water networks and pressurized secondary high-rise tanks. Operates alongside MPG-6099Plus panels to continuously safeguard residential drinking streams against microbial regrowth without chlorine over-dosing.
Deployed in neutralization channels and final discharge outfalls. Enables automated hypochlorite dosing for wastewater disinfection, paired with optical COD, TSS, and ammonia transmitters for environmental discharge compliance.
Essential for power station Steam and Water Analysis Systems (SWAS). Monitors micro-residual oxidants, silica, sodium, and trace conductivity in boiler feedwater, preventing turbine blade stress cracking and heat exchanger corrosion.
Dual-relay controllers regulate sodium hypochlorite and dilute acid dosing pumps, preventing toxic chloramine formation, maintaining water clarity, and keeping swimmers safe from skin and eye irritation.
Detailed answers directly from our factory engineering teams to assist engineering consultants, procurement leads, and plant managers.
Amperometric controllers measure electrochemical reduction current generated by hypochlorous acid molecules at a polarized working electrode, providing real-time data without reagents. DPD analyzers run automated batch colorimetry using liquid N,N-diethyl-p-phenylenediamine buffers, which require monthly chemical replenishments and tubing replacements.
When chlorine gas or sodium hypochlorite enters water, it hydrolyzes into hypochlorous acid (HOCl) and hypochlorite ions (OCl⁻). Amperometric electrodes primarily detect the biocidal HOCl species. At pH 6.5, ~90% of free chlorine exists as HOCl; at pH 8.0, only ~20% remains as HOCl. A combined pH controller is required to mathematically compensate for this shift.
Yes. We offer comprehensive OEM/ODM manufacturing across our Kangqiao and Lingang workshops. Engineering teams can customize CNC aluminum/ABS enclosure branding, embed custom Modbus register layouts, configure 12V/24V DC battery power rails, and supply custom cable lengths.
Amperometric sensors rely on consistent solute diffusion through the boundary layer. Fluctuating flow velocities cause erratic signal spikes. To resolve this, BOQU supplies specialized acrylic constant-flow blocks with integrated flow regulators, maintaining a steady 30 to 60 L/h sample flow across varying pipe pressures.
Discover our comprehensive collection of IoT-enabled analytical instruments built for municipal utilities, bioprocess vessels, power plants, and industrial lines.
Engineered for bio-fermentation lines and hot process fluids. Endures repeated 130°C steam sterilizations while maintaining reliable dissolved oxygen feedback.
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Smart digital electrode outputting raw Modbus RTU telemetry directly over RS485 lines, bypassing external transmitters for lower deployment footprints.
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Infrared 860nm scattered-light turbidity and MLSS sensor with an integrated mechanical wiper assembly to prevent algae and sludge deposition on optical lenses.
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Dual-channel wall/panel controller that simultaneously tracks pH and conductivity on a single display, designed for space-constrained hydroponics and RO loops.
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Heavy-duty electrodeless toroidal meter providing accurate real-time acid and caustic strength percentages (HCl, H2SO4, NaOH) for CIP wash stations.
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Microgram-level trace colorimetric analyzer for supercritical boilers and high-pressure steam headers, protecting turbine blades against silica scale buildup.
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UV catalytic persulfate oxidation with conductometric detection, delivering sub-ppb total organic carbon resolution for USP/EP pharmacopeia compliant water circuits.
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Automated digester spectrophotometer verifying plant discharge criteria with automatic calibration, self-cleaning lines, and historical logging for environmental auditing.
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