Introduction
A portable dissolved oxygen meter is a handheld instrument used to measure the concentration of dissolved oxygen in water, and it is used for monitoring the oxygen level in aquaculture, wastewater treatment, environmental monitoring, drinking water, and many other applications where the oxygen content of water is important. The meter measures the dissolved oxygen concentration using an electrochemical sensor, such as a polarographic or galvanic electrode, which measures the oxygen that diffuses through a membrane, or an optical sensor, based on fluorescence quenching, and it displays the concentration in milligrams per liter or parts per million, and, in some models, the percent saturation, with automatic temperature compensation, since the oxygen solubility depends on the temperature; the portable meter is battery-operated and designed for field use, with a digital display and a probe with a cable, and it is simple to use, with the probe immersed in the sample. Portable dissolved oxygen meters are used in aquaculture for monitoring the oxygen level in fish ponds and tanks, in wastewater treatment plants for monitoring the oxygen in aeration basins, by environmental agencies for monitoring the oxygen in rivers, lakes, and estuaries, for testing drinking water, for monitoring the oxygen in industrial process water, for research, and for many other applications, and they are used for routine monitoring, for troubleshooting, and for compliance testing, with features such as automatic calibration, salinity compensation, and data logging. With their convenience and accuracy, portable dissolved oxygen meters are essential for dissolved oxygen monitoring in the field.
Portable Dissolved Oxygen Meter LPRDO-T2010
Portable Dissolved Oxygen Meter is a lightweight design that determines the dissolved oxygen across various samples. It is equipped with advanced a large and undervoltage prompt extend t...
Portable Dissolved Oxygen Meter LPRDO-T2014
Portable Dissolved Oxygen Meter measures 0 to 20.00 mg/L with 0.01 mg/L resolution. It delivers ±0.40 mg/L accuracy and responds in 30 seconds at 25 degrees Celsius. Automatic salinity ...
Portable Dissolved Oxygen Meter LPRDO-T2013
Portable Dissolved Oxygen Meter is designed to measure dissolved oxygen concentration within a range of 0 to 20 mg/L. It has a -S dissolved oxygen sensor, ensuring fast and reliable read...
Pentype Dissolved Oxygen Meter LPRDO-T2010
Pentype Dissolved Oxygen Meter measures dissolved oxygen from 0 to 20 mg/L with automatic temperature compensation. It operates in a temperature range of 0 to 100°C, ensuring versatile ...
Portable Dissolved Oxygen Meter LPRDO-T2012
Portable Dissolved Oxygen Meter can measure oxygen levels within 0 to 20 mg/L range in water. It offers high accuracy, with an error of no more than ±0.30 mg/L, ensuring reliable and pr...
Portable Fluorescent Dissolved Oxygen Meter LPRDO-T2010
Portable Fluorescent Dissolved Oxygen Meter utilizes fluorescence technology with a measuring range of 0–20 mg/L for dissolved oxygen. It features a 3.3-inch monochrome screen for clear...
Portable dissolved oxygen meter LPRDO-T2011
Portable dissolved oxygen meter is equipped with advanced polarographic sensor to measure the dissolved oxygen content. The manual salinity & barometric pressure compensation helps in ac...
Portable Dissolved oxygen meter LPRDO-T2010
Portable Dissolved oxygen meter is equipped with advanced polarographic sensor to measure the dissolved oxygen content. The manual salinity & barometric pressure compensation helps in ac...
Standards
JJF 2294-2025-Calibration specification for on-line low-level dissolved oxygen meters
Complies with the above standards, but is not limited to them.
Features
1. Portable dissolved oxygen meter for measuring DO in water on-site.
2. Electrochemical or optical sensor for fast, accurate dissolved oxygen measurement.
3. Suitable for environmental, aquaculture, water treatment, food and research.
4. Includes meter, DO probe, calibration, sample handling and operation manual.
5. Supports dissolved oxygen measurement for water quality and environmental monitoring.
FAQ
Q1: What testing scenarios is this meter mainly applied to?
A: The portable dissolved oxygen meter is used in environmental monitoring, aquaculture, water treatment, food and beverage, research and field testing to measure dissolved oxygen (DO) concentration and saturation in water on-site for water quality assessment, environmental monitoring and process control. It supports environmental water quality monitoring (rivers, lakes, oceans), aquaculture DO management for fish and shrimp farming, wastewater treatment process control, drinking water quality assessment, food and beverage process water monitoring, and field research. The portable design enables immediate on-site measurement, as DO can change during sample transport and storage.
Q2: What standards does the meter comply with?
A: The portable dissolved oxygen meter follows relevant ISO, ASTM and GB/T standards for dissolved oxygen measurement, including ISO 5814, ASTM D888, and GB/T standards. The hardware complies with IEC 61010 safety standards. Calibration should use certified methods (air saturation, Winkler titration reference). Water quality standards follow applicable regulations.
Q3: What is the warranty period for the whole machine and key components?
A: The whole dissolved oxygen meter is covered by a 12-month warranty. The probe, electronics and display are covered, while membranes, electrolyte, batteries and fuses are consumables. Damage from improper use, probe damage or unauthorized repair is excluded.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation is simple: calibrate, immerse probe in sample, wait for stabilization, and read result. No professional training is required for basic use, but users should follow proper probe maintenance, calibration and measurement technique. We provide an operation manual and remote guidance.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Calibration (air saturation or zero oxygen) recommended before each use session for critical monitoring. Probe membrane and electrolyte replacement per usage or schedule (typically every 1-6 months for electrochemical probes). Optical probes require less maintenance. Full meter calibration annually. Battery replacement when needed.
Q7: Are supporting consumables universal?
A: Probe membranes, electrolyte, batteries and calibration standards are available from water testing suppliers, though probe compatibility should be verified. Long-term consumable cost depends on probe type (electrochemical requires more maintenance than optical).
Q8: Can I customize parameters or supporting accessories?
A: Customization includes sensor type (electrochemical Galvanic/polarographic, optical), measurement range, multi-parameter capability (DO, temperature, pH), data logging, GPS and accessories. Additional probes and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: No installation is required for portable meters. The package includes the meter, probe, calibration supplies and instruction manual. On-site training is available at additional cost.
Q10: What types of water are compatible with this equipment?
A: The portable dissolved oxygen meter measures DO in freshwater, saltwater, wastewater, drinking water and other aqueous solutions within the DO range, temperature and salinity specification. Electrochemical probes require proper membrane and electrolyte maintenance; optical probes are less maintenance-intensive. Samples should be measured on-site if possible, as DO changes during transport. Users should calibrate properly before use, ensure proper probe polarization (for electrochemical), allow sufficient stabilization time, account for temperature and salinity (for saltwater), report results as mg/L or percent saturation with temperature specified, and follow proper probe storage (wet storage cap for electrochemical probes). The probe should be cleaned regularly to prevent fouling. For wastewater or highly contaminated water, the probe may require more frequent cleaning and calibration. The meter should be stored in a cool, dry place with the probe properly stored.
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