Introduction
A BOD meter is an instrument used to measure the biochemical oxygen demand (BOD) of the water and the wastewater, which indicates the amount of the oxygen consumed by the microorganisms during the decomposition of the organic matter, and it is used in the environmental monitoring, the wastewater treatment, the water quality, and the many other applications. The BOD meter measures the BOD by the measurement of the dissolved oxygen before and after the incubation of the sample for a specified period, typically five days (BOD5), or by the manometric and the respirometric methods, in which the oxygen consumption is measured directly, and it provides the BOD value, expressed in milligrams of oxygen per liter; the BOD meter consists of the incubation system or the respirometric vessels, the dissolved oxygen sensors or the pressure sensors, the control and the data system, and it may include the temperature control, with features such as the automated measurement and the data logging; the BOD meter is used for the measurement of the BOD in the wastewater, for the monitoring of the treatment plants, for the assessment of the organic pollution, for the compliance with the regulations, and for many other applications, and it is an essential instrument for the water quality monitoring. BOD meters are used in the wastewater treatment, in the environmental monitoring, in the laboratories, in the industry, and for many other applications. With their BOD measurement, BOD meters are essential for the water quality assessment.
BOD Meter T-S212BOD
BOD Meter features a measuring range of up to 4000 mg/L for precise water quality analysis. It uses electromagnetic stirring for uniform sample mixing and supports independent operation. ...
BOD Meter T-S210BOD
BOD Meter features a measuring range of up to 4000 mg/L for precise water quality analysis. It uses electromagnetic stirring for uniform sample mixing and supports independent operation. ...
BOD Meter T-S211BOD
BOD Meter stimulates the biodegradation process of organic matter by using differential pressure method. Features 0 to 2000 mg/L of measuring range for simultaneous measurement of up to 6...
Standards
ISO 5815-1-Water quality-Determination of biochemical oxygen demand after n days (BODn)-Dilution and seeding method
ISO 8245:1999-Water quality-Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)
ISO 7393-2:2017-Water quality-Determination of free chlorine and total chlorine-Colorimetric method using N,N-diethyl-1,4-phenylenediamine (DPD)
ISO 11923:1997-Water quality-Determination of suspended solids by filtration through glass-fibre filters
ASTM D4189-23-Standard Test Method for Silt Density Index (SDI) of Water
Complies with the above standards, but is not limited to them.
Features
1. Measures biochemical oxygen demand of water samples for environmental and wastewater monitoring.
2. Supports BOD5 test method with incubation and dissolved oxygen measurement over five days.
3. Digital dissolved oxygen sensor with automatic temperature and salinity compensation.
4. Suitable for municipal wastewater, industrial effluent and surface water quality testing.
5. Includes BOD bottles, incubation accessories and operation manual for complete test setup.
FAQ
Q1: What testing scenarios is this instrument mainly applied to?
A: The water BOD meter is used in environmental monitoring stations, wastewater treatment plants, industrial effluent laboratories and third-party water testing organizations to measure biochemical oxygen demand of water samples. It supports wastewater discharge compliance monitoring, treatment plant process control, river and lake water quality assessment and industrial effluent characterization. BOD measurement indicates the amount of biodegradable organic matter in water, which is a key parameter for evaluating water pollution levels and treatment efficiency.
Q2: What standards does the instrument comply with?
A: The test method follows ISO 5815 for water quality BOD determination, ASTM D888 for dissolved oxygen measurement, HJ 505 for water quality BOD5 determination in China, and the corresponding GB/T 7488 method. The instrument hardware complies with relevant laboratory electrical safety standards.
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 dissolved oxygen sensor, meter and controller are covered, while BOD bottles, reagents and membranes are consumables excluded from warranty. Sensor damage from improper storage or drying is also excluded.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained laboratory personnel familiar with BOD test methods and dissolved oxygen measurement. We provide an operation manual and remote guidance. Proper sample dilution, seeding and incubation temperature control are critical for accurate BOD 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: The dissolved oxygen sensor should be calibrated before each BOD test series using air saturation or zero oxygen solution. Full system verification with a BOD reference standard is recommended every 6-12 months. Sensor membrane and electrolyte replacement should follow the manufacturer schedule.
Q7: Are supporting consumables universal?
A: BOD bottles, reagents, nutrient buffers and seed cultures are available from chemical suppliers, though original reagents are recommended for consistent performance. The dissolved oxygen sensor membrane and electrolyte are model-specific and should be sourced from the manufacturer.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes sensor type, incubation configuration and data management software. Additional accessories such as spare sensors, BOD bottle sets and reagent kits can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes the meter, sensor and accessories with an operation manual. Remote commissioning guidance is provided. On-site installation and training are not included for standard orders but can be arranged for laboratory setup projects.
Q10: What types of samples are compatible with this equipment?
A: The meter tests wastewater, surface water and industrial effluent samples within the BOD concentration range. Highly toxic or chlorinated samples may require pretreatment or special seeding. Samples with very high or very low organic content may require appropriate dilution. Users should follow the standard method for sample collection, preservation and handling.
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