SCR DOSER TESTING MACHINE

Product Description

1. Main interface

Interface can select urea pump, sensor, system settings, online upgrade, user manual functions

Urea pump model selection interface, you can choose different urea pumps for testing

Sensor selection interface, different sensors can be selected for testing

2. Urea pump test

Functional testing

Standby -

Urea pump will stop function test in standby mode

Pre injection pressure build-up -

After clicking the "pre-injection pressure" button, theSCRcontroller will carry out the operation of air evacuation and pressure establishment in the pipeline.

Clean (purge) -

After testing, before dismantling the urea pipeline, you need to click the "Clean (Purge)" button. The SCR controller will control the urea pump to perform the cleaning operation, and the urea pump and urea solution in the pipeline will be purged into the urea box.

Large/Medium/Small Flow Injection -

After successful pressure building, click "large flow injection", "medium flow injection" and "small flow injection" to observe the injection of urea solution.

Component testing

Component testing can only be done in standby mode

Message hint

Display error, warning, prompt and fault information, etc.

3. Nitrogen and Oxygen Sensor Testing

After connecting the oxynitride sensor, click the "Start" button to start the test. Nitrogen and oxygen sensors will be heated first. After about one minute, they will be heated to a certain temperature and stop heating. The oxygen concentration and nitrogen oxide concentration around the sensor will be measured. The whole testing process is 5 minutes.

Whether the nitrogen and oxygen sensor is damaged or not can be judged according to the measured "oxygen concentration (%)" and "NO x (ppm)". In air environment, the oxygen concentration is about 20%, and the range of NO x ppm is 0-30.

4. Measurement of Liquid Level/Temperature Sensor

The liquid level and temperature sensor are used to measure the resistance value of the sensor, and then convert it into urea temperature and liquid level height.

When testing the liquid level sensor, the sensor can be removed from the urea box and slid the float manually. At the same time, whether the liquid level resistance changes or not can be observed.

5.Testing of Exhaust Temperature Sensor

The detection of the temperature sensor is also to test the resistance of the sensor, and then convert the resistance value to the temperature value according to the type of sensor.

Currently supports 3 types of temperature sensors: PT100, PT200, PT1000

6. System setup

Android version software connects SCR controller via Bluetooth Bluetooth connection steps:

Click the "Scan" button to scan peripheral Bluetooth devices

After selecting the device in the Bluetooth device list, click the Connection Button. For the first pairing, you need to input PIN code (1234)

Windows version software connects SCR controller via USB cable or Bluetooth

7.Online upgrade

Automated Performance Testing for SCR Doser Units

Designed for automotive professionals, the SCR Doser Testing Machine provides complete testing of SCR doser units in emission control systems. Users benefit from automated control through its PLC-based panel, ensuring efficient and accurate measurement of parameters such as flow rate, pressure, and spray pattern. Its digital touch screen display allows user-friendly data input and real-time monitoring.


Comprehensive Data Logging and Reporting

Effortlessly log and export test results with USB and Ethernet connectivity, streamlining documentation and quality control. The machine supports easy retrieval and sharing of data, catering to regulatory compliance and internal reporting standards. Annual recalibration is recommended to maintain test accuracy, optimizing long-term reliability.


Enhanced Safety and Durability

With features like emergency stop, overpressure protection, and leak detection, operators can trust in the machines safety during testing. Its sturdy mild steel or stainless-steel coated housing resists harsh environments, while factory calibration ensures dependable performance from 0C to 50C ambient temperatures.