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Multi-parameter Analysis Micro Water Station

Model：

HD-WXSZ

Introduction：

Micro Water Quality Monitoring Station measures up to 9 parameters including COD, ammonia nitrogen, total phosphorus, total nitrogen, temperature, pH, conductivity, dissolved oxygen and turbidity. Widely used for rivers, reservoirs and lakes....

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I. Product Introduction

The micro water station measures nine parameters simultaneously: COD, ammonia nitrogen, total phosphorus, total nitrogen and the five conventional parameters of water temperature, pH, conductivity, dissolved oxygen and turbidity. It can be installed outdoors for the monitoring of surface water in rivers, reservoirs and lakes.

II. Instrument Description

The micro station integrates all electrodes and probes, the water treatment system and the detection and monitoring system in a single cabinet. Different modules and sensors are connected digitally with high precision. The transmitter can be connected to pH/temperature, dissolved oxygen, conductivity, turbidity and other electrodes at the same time and display several parameters simultaneously (customizable). The instrument provides two freely selectable 4–20 mA outputs, RS485/RS232 output and the standard MODBUS protocol, and can be installed outdoors.

III. Instrument Features

1Quick and economical installationsaves the cost of building a station house.
2Integrated data acquisition, processing and transmissionhigh reliability at low cost.
3Full touch-screen operationfast and accurate; conductivity, pH, residual chlorine, turbidity, dissolved oxygen and temperature can be measured simultaneously online.
4Multiple outputs4–20 mA, RS485 and other variable outputs with intelligent system control.
5Wall-mounted integrated cabinetrust-proof construction.
6Integrated colour touch-screen main unitclear display and simple operation.
7Complete sensor setconductivity, pH, residual chlorine, turbidity, DO and temperature electrodes/sensors.
8Wireless transmissionsupported for remote data upload.
9Electrode-based measurementminimal maintenance.
10Automatic temperature compensationimproves accuracy under all weather conditions.

IV. Application

Widely used for monitoring surface water in lakes, rivers, reservoirs, canals and fish ponds.

V. Technical Parameters

1. Four-Parameter Module (TP, NH3-N, TN, CODMn, CODcr)

ItemTotal phosphorusAmmonia nitrogenTotal nitrogenPermanganate indexCODcr
Reference standardGB 11893-89HJ 536-2009HJ 636-2012GB 11892-89HJ 377-2019
Detection methodAmmonium molybdate methodSalicylic acid methodAlkaline potassium persulfate spectrophotometryPotassium permanganate methodPotassium dichromate method
Measurement range0.02–2 mg/L (expandable)0.1–5 mg/L (expandable)0.1–10 mg/L (expandable)0.5–20 mg/L (expandable)15–2000 mg/L (expandable)
Detection limit≤0.01 mg/L≤0.010 mg/L≤0.01 mg/L≤0.1 mg/L0.1 mg/L
Lower limit of determination≤0.15 mg/L≤0.15 mg/L≤1.0 mg/L≤0.5 mg/L15 mg/L
Drift±5%±5%±5%±5%±5%
Precision≤5%≤5%≤5%≤5%≤5%
Indication error±5%±5%±5%±5%±5%
Voltage influence±10%±5%±10%±5%±5%
Temperature influence±5%±5%±5%±5%±5%
Consistency≥90%≥90%≥90%≥90%≥90%

2. Five-Parameter Module (pH, DO, Conductivity, Turbidity, Temperature)

ItempHDissolved oxygenConductivityTurbidityTemperature
Measurement methodGlass electrode methodFluorescence quenching methodFour-wire electrode method90° scattered light methodThermistor electrode method
Reference standardGB/T 6920-86GB/T 11913-89GB/T 6908-201GB/T 13200-91GB/T 13195-91
Measurement range0–140–20 mg/L0–500 mS/m0–1000 NTU0–50 °C
Drift±0.1 pH±0.3 mg/L±1%±5%—
Precision≤0.1 pH≤5%≤1%≤5%—

3. General Parameters

Sampling cycleTime interval (freely adjustable from 20 to 9999 min) and on-the-hour measurement mode
Application siteSurface water such as lakes, rivers and reservoirs (CODMn for clean surface water, CODcr for odorous surface water)
Calibration cycleAdjustable from 1 to 99 days, at any time of day
Maintenance cycleGenerally once a month, about 60 min each time
External dimensions1900 mm (H) × 1480 mm (W) × 960 mm (D)
The video is currently in production, please stay tuned......
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