BOD Intelligent Tester BOD-804

This BOD intelligent tester uses mercury free differential pressure method to measure BOD value in water, and adopts imported sensors to ensure reliable data. The whole machine mold adopts integrated design, with clear functional hierarchy and stylish appearance. It is widely used in the detection of industrial wastewater, domestic wastewater, environmental engineering, university research, agricultural projects, etc.

Working principle

This product simulates the natural biodegradation process, where the oxygen in the air above the test bottle continuously supplements the dissolved oxygen consumed in the water. The CO2 generated during the organic matter degradation process is absorbed by potassium hydroxide in the sealed lid. The sensor monitors the changes in oxygen pressure in the bottle in real time, establishes a correlation between biochemical oxygen demand (BOD) and gas pressure, accurately measures BOD, and displays the results in real time.

BOD₅ Intelligent Tester Specifications:

BOD₅ Intelligent Tester Features:

1. Independent color LCD display, supporting automatic screen shutdown and one click wake-up function;

2. Mercury free pressure difference method, safe and reliable experimental process, high accuracy of measurement results

3. Each culture bottle operates independently, displays results independently, and is equipped with a large capacity lithium battery that can be charged independently or simultaneously

4. The measurement results do not require conversion and can directly display the BOD concentration

5. Wide range, built-in 10 segmented ranges, users can freely choose according to their need

6. Reserve custom parameters that can be calibrated according to requirements

7. Automatically record measurement data for real-time viewing of current and historical data

8. Adopting an intelligent control system to continuously collect, analyze, and automatically record data, the cultivation process does not require dedicated personnel to be on duty and is automatically completed throughout the entire process

9. The measurement cycle and delay time can be adjusted, and users can make adjustments according to their actual situation.

What is the difference between BOD and cBOD?

Biochemical Oxygen Demand (BOD) is a measure of the amount of oxygen required by aerobic microorganisms to break down organic matter in a water sample over a specific period of time. It represents the oxygen consumption requirement of the water source. The method for determining Carbon-Based BOD (CBOD) is the same as that for BOD, but it inhibits nitrifying bacteria in the water sample. Nitrifying bacteria consume nitrogenous substances (compounds containing reduced nitrogen), thereby increasing the oxygen demand of the wastewater. Since the purpose of the BOD test is to measure carbon-based substances, nitrogenous substances are generally considered to be interfering factors.