You Professional Dissolved Oxygen Meter Suppliers!

 

 

Dongyi Company will be a professional manufacturer of liquid level meters, flow meters, online water quality analyzers and pressure transmitters integrating R&D, design, production, sales and after-sales.

 

 
 
Why Choose Us
 
 

Our Factory

The company has a factory building of nearly 2,000 square meters and is professional There are more than 10 technical staff and more than 20 utility model patents.

 
 
 

Production Equipment

Our production facilities are equipped with advanced tools, including ultrasonic and radar testing devices, laser welding equipment, flow calibration devices, pressure debugging equipment, high and low temperature aging boxes, and circuit aging devices.

 
 
 

Our Certificates

We hold several certifications, including utility model patents, design patents, software works, and quality management system certifications.

 

 

Dissolved Oxygen Meter - Overview

 

 

A dissolved oxygen meter measures the amount of oxygen in the water when it is in its dissolved form. The main uses of a dissolved oxygen meter are for industrial purposes and for animal care. A dissolved oxygen meter basically measures the concentration of oxygen in water. Dissolved oxygen measurement is an essential test to verify the integrity of oxygen supply systems for biological activity in reactors and sewage facilities where bacteria and biomass are grown for water treatment.

 

Product Specification

 

We offer the following Specifications:

Dissolved oxygen

(0.0~20.0) mg/L

Response time

No more than 30 seconds (90% response at 20 ° C)

Temperature

(0-40) ° C

Automatic temperature compensation range

(0-40) ° C

Dissolved oxygen

± 0.3mg/L

Power supply

Four alkaline batteries, No. 7

Temperature

± 1 ° C

External dimensions (mm)

180 x 80 x 30

Residual current

Not more than 0.15mg/L

Weight

1kg

 

 
 
Types of Dissolved Oxygen Meter
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01.

Portable Dissolved Oxygen Meter

Portable: Small and lightweight, suitable for on-site measurements.


Multifunctional: Often includes temperature compensation to improve measurement accuracy.


Battery-operated: No power outlet required, flexible use.

02.

Benchtop Dissolved Oxygen Meter

High Accuracy: Typically more accurate than portable Dissolved Oxygen meters, suitable for laboratory use.


Multifunctional: With many features such as data logging, temperature compensation, and multi-parameter measurement.


Stability: Robust construction, suitable for continuous use.

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Application of Dissolved Oxygen Meter

 

Aquaculture

Used to monitor oxygen levels in fish tanks and ponds to ensure optimal conditions for aquatic life. Maintaining proper oxygen levels is crucial for fish health and growth.

01

Wastewater Treatment

In wastewater treatment plants, DO meters help assess the efficiency of aeration processes. They ensure that enough oxygen is present to support aerobic bacteria that break down organic matter in sewage.

02

Environmental Monitoring

Used in environmental studies to assess the health of lakes, rivers, and other water bodies. Low oxygen levels can indicate pollution or excessive organic matter, while high levels can indicate algal blooms.

03

Biotechnology and Pharmaceutical

Used for fermentation or cell culture, DO meters monitor oxygen levels to optimize growth conditions for microorganisms or cells. This is critical for the production of various biotechnological and pharmaceutical products.

04

Food and Beverage Industry

DO meters are employed in breweries, wineries, and food processing plants to monitor oxygen levels during fermentation and storage processes. Controlling oxygen levels helps maintain product quality and shelf life.

05

 

Components of Dissolved Oxygen Meter

 
The Sensor

The first and most crucial component of a dissolved oxygen meter is the sensor. The sensor is responsible for measuring the dissolved oxygen in the water and converting it into an electrical signal that the meter can display.

 
The Membrane

The membrane is a thin layer of material that allows oxygen to pass through to the sensor while keeping out any other substances that could interfere with the measurement. Different types of membranes are available.

 
The Electrolyte

The electrolyte is a substance that fills the electrode and completes the circuit between the sensor and the meter. It is typically a potassium chloride solution that acts as a conductive medium, meaning it provides the electrons necessary for the current flow.

 
The Meter

The meter is the device that displays the dissolved oxygen measurement. Some meters use a digital display, while others use a needle and scale. The meter can also store past measurements, display temperature, and adjust the calibration of the sensor.

 
The Calibration Solution and Standard

Calibration is essential to ensure the dissolved oxygen meter provides accurate results. A calibration solution is typically provided with the meter and is used to set the sensor's response time and sensitivity. The standard is a reference solution that is used to confirm the meter's accuracy.

 

 

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Customization process

Design Confirmation and Quotation:Our process begins when a customer sends us specific product details such as the specifications and dimensions of the product they want. We will provide a quote for the entire process according to customer requirements.


Sample Making: After agreeing the quotation, Our designers will make samples for you in the shortest time, after the samples are finished, we can send them to our customers by post for testing, or provide you some pictures for your reference.


Mass Production & QC: Once the samples are finalized, the design will be forwarded to our factory to start mass production. Our dedicated quality control team monitors every step of the process to ensure that every product meets our standards before it leaves the factory.


Delivery: Once the order has been manufactured, we will arrange for delivery of the product to the customer, thus completing the process.

 

Packaging & Delivery

 

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Certificate

 

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FAQ

Q: What is a dissolved oxygen meter?

A: A dissolved oxygen meter measures the amount of oxygen in the water when it is in its dissolved form. The main uses of a dissolved oxygen meter are for industrial purposes and for animal care. A dissolved oxygen meter basically measures the concentration of oxygen in water.

Q: What is a good dissolved oxygen level?

A: 6.5-8 mg/L
Water at lower temperatures should have higher mg/L of dissolved oxygen and higher %DO while warmer, polluted waters will have lower mg/L and %DO. Healthy water should generally have dissolved oxygen concentrations above 6.5-8 mg/L and between about 80-120 %.

Q: How do you measure dissolved oxygen with a DO meter?

A: Insert the probe into the sample water. Move the probe in the water to release any air bubbles and to provide a fresh sample to the sensor cap. The continuously stir the sensor. The sensor consumes dissolved oxygen so it is important to stir (but not agitate) the sample.

Q: What are two ways that dissolved oxygen is measured?

A: Dissolved oxygen levels can be measured by a basic chemical analysis method (titration method), an electrochemical analysis method (diaphragm electrode method), and a photochemical analysis method (fluorescence method). The diaphragm electrode method is the most widely used method.

Q: Are you a factory or a trading company ?

A: We are a factory and trading company at the same time.

Q: How about the quality of the products ?

A: Our products are of high quality and we have registered and reputable brands.

Q: What's the MOQ for each items ?

A: 100 pieces.

Q: What's the shipping method? 

A: By express way, such as Fedex, DHL, TNT and so on; by air; by sea. Shipping cost is decided by shipping ways& product actual weight &volume and your detailed address.

Q: What's the Payment method?

A: We support various payment way(T/T, Visa card, Western union, Moneygram, Secure payment-Escrow, etc.).

Q: Can we print our own brand or logo on your products?

A: Yes, it is our pleasure to be one your OEM manufacturer in China to meet your OEM request

Q: Why do some goods have difference between website picture and practical items?

A: Because difference of light and browser, also different batches, material may be little difference. If any question, please tell us before order and ask clearly.

We're well-known as one of the leading dissolved oxygen meter manufacturers and suppliers in China. Please feel free to buy high quality dissolved oxygen meter made in China here from our factory. Contact us for customized service.

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