Pressure Transducer | G1/2 Thread with 4-20mA Output | 100bar

This industrial pressure sensor measures pressure in liquids and gases, then sends that information to your control system. It offers several output signals, like 4-20mA, 0-10V, and RS485, and connects with a standard G1/2' thread. It runs on a DC24V power supply. Features and Benefits - 4-20mA current output - This signal travels well over long cables and resists electrical interference, giving you a clear reading. - Stainless steel body - The housing is made from 304 stainless steel to resist rust from oil, water, or gas. - Multiple signal options - Pick from 4-20mA, 0-10V, or RS485 to work with your existing PLC or data logger. - Many pressure ranges - You can get models from 1 bar up to 100 bar for different industrial jobs. Applications - Air Compressor Monitoring - Check system pressure to keep it running well and prevent damage. - Hydraulic Systems - Watch fluid pressure in real-time for process control and safety. - Water Management - Measure water pressure in tanks, pumps, and pipes for city or factory use. Safety & Preparation Before commencing any work on pressure systems, ensure all lines are depressurised and isolated to prevent injury. Always wear appropriate personal protective equipment, such as safety glasses. Familiarise yourself with the specific requirements of the system where the pressure transducer will be installed. This particular pressure transducer features a G1/2" connection thread. Ensure your system is compatible and that you have the correct tools for a secure, leak-free installation. Check Excitation Voltage Pressure transducers, such as this G1/2" model, require an excitation voltage to operate. This voltage powers the internal strain gauge or other sensing element that converts pressure into an electrical signal. Refer to the transducer's documentation or the system's specifications to determine the correct excitation voltage (e.g., 5V, 24V). Applying an incorrect voltage can damage the transducer. Verify the power supply is stable and within the specified range for accurate readings. Test Output Signal (Zero Pressure / No Load) To test if a pressure transducer is functioning correctly, begin by checking its output at zero pressure or no load. This establishes a baseline reading. For example, a 4-20mA output transducer should read 4mA when no pressure is applied. Similarly, a 0-10V output transducer should read 0V. This initial test helps confirm the transducer's basic operational integrity before it is subjected to pressure. For Current Output Transducers (4–20 mA): This pressure transducer offers a 4-20mA output signal. To test, connect a multimeter in series with the transducer's output and power supply, set to measure DC current. With no pressure applied to the G1/2" connection, the multimeter should display approximately 4mA. As pressure is applied within the 100 bar range, the current output should increase proportionally, reaching 20mA at the maximum rated pressure. This linear relationship is how the transducer communicates pressure to a logic controller or display. For Voltage Output Transducers (0–5V, 0–10V, or mV): While this specific product offers a 4-20mA output, some pressure transducers produce voltage outputs like 0-10V. To test such a transducer, connect a multimeter in parallel with the output leads, set to measure DC voltage. At zero pressure, the output should be 0V. As pressure increases, the voltage output should rise proportionally, reaching the maximum (e.g., 10V) at the transducer's full-scale pressure. This voltage signal then informs the connected system about the measured pressure.