Introduction
A benchtop dissolved oxygen meter is a benchtop instrument used to measure the dissolved oxygen concentration of the water and the aqueous solutions, and it is used in the environmental monitoring, the aquaculture, the water treatment, the laboratories, and the many other applications. The benchtop dissolved oxygen meter measures the dissolved oxygen by the electrochemical method, with the polarographic or the optical sensor, and it provides the dissolved oxygen concentration, expressed in milligrams per liter or in percent saturation, with the temperature and the salinity compensation; the benchtop dissolved oxygen meter consists of a benchtop meter with the display, a dissolved oxygen sensor or the probe, a temperature sensor, and the controls, and it provides features such as the calibration and the automatic compensation; the benchtop dissolved oxygen meter is used for the measurement of the dissolved oxygen in the rivers, the lakes, the wastewater, the aquaculture water, and the process water, for the monitoring, for the quality control, for the assessment of the water quality, and for many other applications, and it is an essential instrument for the dissolved oxygen analysis. Benchtop dissolved oxygen meters are used in the environmental monitoring, in the aquaculture, in the water treatment, in the laboratories, and for many other applications. With their benchtop design, benchtop dissolved oxygen meters are essential for the accurate dissolved oxygen measurement.
Benchtop Dissolved Oxygen Meter LBDO-T2010
Benchtop Dissolved Oxygen Meter measures dissolved oxygen from 0.00 to 20 mg/L. It supports temperature compensation from 0 to 100°C, ensuring accuracy under varying thermal conditions....
Benchtop Dissolved Oxygen Meter LBDO-T2013
Benchtop Dissolved Oxygen Meter is a compact design that measures the amount of dissolved oxygen present in water. It has a large 6.5-inch reliability even with frequent use. It's a pola...
Benchtop Dissolved Oxygen Meter LBDO-T2012
Benchtop Dissolved Oxygen Meter offers a measurement range of 0.00 to 99.99 ppm. It features a high-resolution 5.7-inch function allows auto-read, timed-read, and continuous-read functio...
Benchtop Dissolved Oxygen Meter LBDO-T2010
Benchtop Dissolved oxygen meter is equipped with advanced polarographic sensor to measure the dissolved oxygen content. The manual salinity & barometric pressure compensation helps in ac...
Benchtop Dissolved oxygen meter LBDO-T2011
Benchtop 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
IEC 60746-4:2018-Expression of performance of electrochemical analyzers-Part 4: Dissolved oxygen in water
Complies with the above standards, but is not limited to them.
Features
1. Benchtop dissolved oxygen meter for precise measurement of oxygen in water.
2. Polarographic or optical DO probe with automatic temperature and salinity compensation.
3. Suitable for water quality, environmental monitoring, aquaculture and wastewater laboratories.
4. High-accuracy measurement with data logging and calibration functions.
5. Includes DO probe, temperature sensor, calibration accessories and meter.
FAQ
Q1: What testing scenarios is this meter mainly applied to?
A: The benchtop dissolved oxygen meter is used in water quality laboratories, environmental monitoring agencies, wastewater treatment plants, aquaculture facilities, beverage production and research institutions to precisely measure dissolved oxygen concentration in water and aqueous samples. It supports drinking water quality assessment, wastewater treatment process monitoring, river and lake environmental monitoring, aquaculture water quality management, fermentation and bioprocess monitoring, and beverage quality control. The benchtop design provides higher accuracy and stability than portable meters, suitable for laboratory analysis. It is essential for water testing laboratories, environmental agencies, wastewater facilities and aquaculture operations requiring accurate DO measurement for water quality assessment, process optimization, regulatory compliance and aquatic health monitoring, where dissolved oxygen levels indicate water quality, organic pollution, treatment efficiency and suitability for aquatic life.
Q2: What standards does the meter comply with?
A: The DO meter complies with ISO 5814 for water quality dissolved oxygen determination, ASTM D888, EPA methods, and relevant GB/T and HJ standards. The hardware complies with IEC 61010 laboratory safety standards. Calibration should use saturated air or Winkler method for verification.
Q3: What is the warranty period for the whole machine and key components?
A: The whole meter is covered by a 12-month warranty. The meter unit and probe are covered, while membranes, electrolytes and batteries are consumables excluded from warranty. Probe damage from improper storage or corrosive samples is also excluded. Optical probes have different maintenance requirements.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires basic training in dissolved oxygen measurement, probe calibration and maintenance. We provide an operation manual and remote guidance. Proper probe calibration, polarization (for polarographic), temperature compensation and sample handling are important for accurate results.
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 with saturated air or zero oxygen solution should be performed before each use session for critical measurements. Full meter calibration recommended every 6-12 months. Probe membrane and electrolyte replacement (polarographic) per manufacturer schedule. Optical probe verification periodically.
Q7: Are supporting consumables universal?
A: Calibration accessories, membranes and electrolytes are available from the manufacturer or authorized distributors, though probe-specific parts should be verified. Long-term consumable cost is moderate depending on probe type and usage.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes probe type (polarographic or optical), measurement range, salinity compensation and data output. 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 complex installation is required beyond probe connection and power. The package includes the meter, probe, calibration accessories and instruction manual. On-site calibration and training service are available at additional cost.
Q10: What types of samples are compatible with this equipment?
A: The meter measures dissolved oxygen in water and aqueous solutions within the measurement range and temperature specification. Highly corrosive samples may damage the probe and require special material selection. Samples with high suspended solids may coat the probe. Very low DO samples require careful measurement technique. Users should select appropriate probe type, follow proper calibration procedures, ensure adequate probe polarization (polarographic), allow temperature equilibration, and clean the probe regularly to maintain measurement accuracy. Salinity compensation should be enabled for brackish or seawater samples.
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