AMPR SCR Doser Testing Machine Instruction Manual

: June 13, 2024
: AMPR

Table of Contents

Chapter I Product Introduction
Chapter II Functional Introduction
Measurement of Liquid Level/Temperature Senso
Testing of Exhaust Temperature Sensor
System setup
Online upgrade
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AMPR SCR Doser Testing Machine Instruction Manual

Chapter I Product Introduction

SCR urea pump controller is perfectly compatible with Windows and Android operating system.

The test software can be installed on any Windows and Android device.SCR urea pump controller can automatically identify the connected test equipment, and can turn on/off this function in the system settings,Available in two form factors.

Chapter II Functional Introduction

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

Urea pump test

Urea pump test

Functional testing

A)Standby
Urea pump will stop function test in standby mode

B)Pre injection pressure build-up
After clicking the “pre-injection pressure” button, the SCR controller will carry out the operation of air evacuation and pressure establishment in the pipeline.

C)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.。

D)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.

2Message hint

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

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.
2)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.

Note: When testing the nitrogen and oxygen sensor, it will be heated automatically. It is strictly forbidden to touch the metal part of the sensor to avoid scalding. Do not splash water or liquid on the sensor to avoid damaging the sensor

Measurement of Liquid Level/Temperature Senso

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.

Testing of Exhaust Temperature Sensor

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

System setup

Android version software connects SCR controller via Bluetooth Bluetooth connection steps:
A )Click the “Scan” button to scan peripheral Bluetooth devices
B )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