Sensor | -1 to 1000bar Range | 4-20mA 24VDC Vacuum Transmitter

This sensor measures pressure in water, gas, or oil. It sends a standard 4-20mA signal. This signal works well over long distances. It's good for industrial control, like in water treatment and pump systems. Features and Benefits - Wide pressure range - It handles vacuum, low, and high pressures from -1 to 1000 bar. - 4-20mA output - This gives a steady signal that resists noise. You get accurate readings even far from your controller. - 316L stainless steel diaphragm - This part resists corrosion. It works with many different liquids. - Simple two-wire hookup - Connecting this sensor is easy. Just attach the two wires to your 24VDC loop. Applications - Water Pumps - Use it to watch pump output. It can help control variable speed drives. - Tank Level Monitoring - It works as a submersible sensor for tanks. You get constant volume readings. - HVAC Systems - This sensor works in chilled water systems. It helps keep pressure correct in closed loops. Safety & Preparation Before commencing any work on pressure transducers, ensure appropriate personal protective equipment is worn. Always isolate the power supply before making electrical connections. This specific transducer operates on a 24V DC power supply. Familiarise yourself with the manufacturer's instructions for the specific transducer and any associated equipment, such as a pressure gauge or logic controller. Ensure the area is clear of obstructions and potential hazards. Check Excitation Voltage To ensure proper operation and testing of your pressure transducer, verify the excitation voltage. For this particular sensor, the Power Supply is 24V DC. Use a multimeter to confirm that the voltage supplied to the transducer is within its specified operating range. Incorrect voltage can lead to inaccurate readings or damage to the unit. A stable and correct excitation voltage is crucial for the pressure transducer to function as intended. Test Output Signal (Zero Pressure / No Load) Testing the output signal at zero pressure or no load is a fundamental step in verifying the functionality of a pressure transducer. This allows you to establish a baseline reading. For this Sensor, the Pressure Range is -1 to 1000 bar. At zero pressure, or atmospheric pressure if the transducer is vented, the output signal should correspond to the lower end of its specified output range. This helps confirm the transducer's internal strain gauge is functioning correctly. For Current Output Transducers (4–20 mA): This Sensor has an Output Signal of 4-20mA. To test, connect a multimeter in series with the output loop to measure the current. At zero pressure (no load), the output should ideally read 4mA. As pressure is applied, the current should increase proportionally, reaching 20mA at the maximum specified pressure. This linear relationship is how pressure transducers work, converting physical pressure into an electrical signal that can be interpreted by a logic controller or other monitoring equipment. For Voltage Output Transducers (0-5V, 0-10V, or mV): Although this specific product has a 4-20mA output, it is useful to understand how voltage output transducers are tested. For a voltage output transducer (e.g., 0-5V or 0-10V), you would connect a multimeter in parallel across the output terminals to measure the voltage. At zero pressure, the output should correspond to the lower end of the voltage range (e.g., 0V or 1V). As pressure increases, the voltage output would rise proportionally, reaching the maximum voltage at the full-scale pressure.