Application Cases

• Using the PFT4A-2S-2P Data Acquisition Box to View Valve Opening/Closing Time Curves
• PT1000 Resistance-Temperature Table Query
• Example commands of the RTU module
• Querying Pulse Signal Frequency and Duty Cycle Using Software)
• Calculate Operating Conditions with Valve Opening Monitoring Software

Engineering Issues

• When collecting 4-20mA analog signals, the sensor output is 4mA, but the module reading is less than 4mA. What could be the reason?

Video Demonstrations

▶️ Portable Data Acquisition Box PFT4A-2S-2P Video Demonstration

• Signal Generator Calibration

• 4-Channel Analog Quantity Acquisition

• 2-Channel PT100/1000 Thermistor Acquisition

• 3-Channel Relay Switch Function

• Curve Acquisition Function

• Pulse Signal or AB-Phase Encoder Angle Acquisition

▶️ Proportional Needle Valve Operation - Video Demonstration

• Use a signal generator to output 4-20mA, connect a multimeter to the feedback signal, and check repeatability.
• Set parameters via the web page and control the valve opening through the webpage.