For Fisheries Digital Conductivity Meter by BOQU

Product Overview

- The BOQU DDG-2090 is an industrial, microcomputer-based online digital conductivity meter designed for continuous monitoring of water and solutions.

- Panel-mount, backlit LCD display with clear readout of conductivity and temperature; power: AC 220V ±10%.

- Available electrode constants (K=0.01, 0.1, 1.0, 10.0) to cover very low to high conductivity/salinity ranges.

Product Features

- Wide measuring ranges: 0.1–200 μS/cm (K=0.1), 1–2000 μS/cm (K=1.0), 10–20,000 μS/cm (K=10.0), and 0–19.99 MΩ (K=0.01). Resolution to 0.01 μS/cm or 0.01 MΩ.

- Accuracy and stability: e.g., accuracy ~0.02 μS/cm and stability ≤0.04 μS/cm per 24 h.

- Automatic temperature compensation (0–99 °C).

- Outputs and interfaces: isolated 4–20 mA output (max load 500 Ω), RS485 communication (for remote monitoring/SCADA).

- Control and alarm: two relays (max 230 V, 5 A) with adjustable delay and upper/lower alarm thresholds.

Product Value

(especially for fisheries)

- Enables continuous, real?time control of water conductivity/salinity—critical for fish health, osmoregulation, and hatchery success.

- Supports process automation (4–20 mA, RS485, relays) so conductivity control can be integrated with dosing, filtration, or recirculating systems to reduce manual checks and rapid response to changes.

- High accuracy and temperature compensation improve reliability of decisions about water exchanges, salinity adjustments, and disease prevention.

Product Advantages

- Flexible measurement coverage from ultra?low to high salinity using selectable electrode constants—suitable for freshwater, brackish, and marine aquaculture.

- Stable, precise sensing with microcomputer control and proven industrial components for long?term online use.

- Isolated current output and digital communication simplify integration with existing control systems and reduce electrical interference.

- Dual relays and alarm functions allow immediate local control/actions without extra hardware.

- Simple operation, backlit display, and BOQU’s quality control and export experience support dependable deployment and service.

Application Scenarios

- Hatcheries and broodstock rooms: control of salinity and ion levels for larval development.

- Recirculating Aquaculture Systems (RAS) and flow?through farms: continuous monitoring for salt balance, water exchanges, and filtration performance.

- Shrimp and brackish/marine farms: salinity management and early detection of shifts that stress stock.

- Water intake and treatment: feed-water quality checks, conductivity-based dosing (e.g., salt or remineralization) and effluent monitoring.

- Environmental compliance and remote farm monitoring via RS485/SCADA integration and alarm outputs.