Measuring liquid oxygen or the environment is very important in many cases. For this purpose, a device called an oxygen meter is used. Oxygen meters are divided into two types of liquid and medium, which can measure the amount of oxygen in the liquid or environment, respectively, and display in mg / L or PPM. Some oxygen meters have the ability to measure the amount of oxygen in the environment and liquids together. The amount of dissolved oxygen in water is essential for aquatic organisms and is also very effective in corrosion of water. Oxygen meter is also widely used in agricultural and laboratory industries.
Soluble oxygen meter consists of an electrode in which the soluble sample is held by a membrane that is permeable to oxygen. When O2 passes through the membrane and reaches the electrode, electron transfer and molecular oxygen transfer take place. Electron transfer causes current to pass through the measuring device. The current measuring device has an ammeter and a reference electrode that the amount of current is proportional to the amount of dissolved oxygen in the sample. The amount of oxygen dissolution in water is subject to the laws of gases, the law of art. Be
Types of soluble oxygen meters
Oxygen meter The solution is available in pen or pocket, portable, desktop and online depending on the type of application.
- DO oxygen meter
pen or pocket meter is the cheapest and smallest type of DO meter, the parts life of which is shorter than other samples. Usually the electrode of this sample is not replaceable.
- Portable Oxygen Meter
DO is a portable oxygen meter that operates on battery power and is designed for outdoor use. The electrode of this sample oxygen meter is interchangeable.
- Desktop Oxygen Meter
DO Desktop meter that has high accuracy and is usually used in the laboratory environment and is powered by mains or adapter. The electrode of this sample oxygen meter is interchangeable.
- Online oxygen meter
DO meter online can be completely on, some of them can command the solenoid valve to increase or decrease some substances in the solution or command the alarm and other features.
calibrate Oxygen meter
In order to calibrate Oxygen meter The DO5510 Lutron model is used, which is described below.
To measure and start working with the device, you must first calibrate the device. To do this, first turn on the device and place the selector in the O2 section. If the value shown is zero, the device is calibrated, otherwise the zero key. Turn on and off the device, then calibrate the device probe dipped in the solution and connect to the device, turn on the device and press the O2Cal key and wait for about 4-5 minutes to get the number 20.9 or 20.8 to Show us. Then the device is calibrated and ready to use.
Application Oxygen meter
Of application Oxygen meter The following can be mentioned:
- Sewage, water quality determination
- Aquatic breeding centers
- Veterinary centers
- water refinery
- Food industry
Important points in choosing one Oxygen meter
- Ability to measure ambient oxygen and liquid
- Type of oxygen depending on the intended application (pen or pocket, portable, desktop)
- Ability to measure the amount of oxygen in percent
- Measurement range
- Ability to calibrate
- Ability to measure temperature
- Ability to measure the amount of salt or salinity and acid
- Has memory and the ability to record minimum and maximum values
- Ability to connect to a computer
Rose Calibration Company in Melbourne, Australia with over ten years of experience provides all calibration, maintenance, and repair services throughout Australia. If you live in Sydney, Melbourne, Adelaide, Perth, Geelong, and Brisbane, you can receive your quote in less than two hours by fill-up the form via the “Booking” link.