Sensor | 0.5%FS Precision | IP68 Submersible 4-20mA Transmitter

This IP68 sensor can stay underwater all the time. Its waterproof build and stainless steel body make it a solid choice. It monitors liquid levels and pressures in tanks, wells, and outside. It gives a standard 4-20mA output for easy setup. Features and Benefits - IP68 waterproof rating - This means no dust can get in. It can also be submerged in water permanently. - 0.5% full-scale accuracy - This sensor gives precise readings. It's good for important process control. - 304 stainless steel body - The stainless steel resists corrosion. This means it lasts a long time in tough places. - G1/4 threaded connection - This is a common way to mount it. It screws right into pipes and pump housings. Applications - Water Well Monitoring - Put it in wells to measure water levels. It works in deep wells or boreholes. - Variable Frequency Pumps - This sensor works well with pump systems up to 5MPa. It gives feedback to keep pressure steady. - Liquid Storage Tanks - Use it to measure liquid levels in industrial or farm tanks. Safety & Preparation Before commencing any work on the Sensor, ensure the power supply is disconnected. This pressure transducer operates with a 24V DC power supply, so appropriate safety measures for electrical work must be observed. Familiarise yourself with the application, particularly if it involves a variable frequency water pump, to understand potential hazards. Always use suitable personal protective equipment. Handle the G1/4 process connection carefully to avoid damage. This product is a precision instrument, so treat it with care during handling and installation. Check Excitation Voltage The Sensor requires a 24V DC power supply. Before connecting the transducer, verify that the excitation voltage from your power source is stable and within acceptable limits. An incorrect or fluctuating voltage can damage the transducer or lead to inaccurate readings. Use a multimeter to measure the voltage at the connection points. Ensure the polarity is correct when connecting the 24V DC supply to the transducer. Consistent and accurate excitation voltage is crucial for the transducer's performance and longevity. Test Output Signal (Zero Pressure / No Load) To test the Sensor’s functionality, apply no pressure to the transducer. With the 24V DC power supply connected, measure the output signal. For this 4-20mA transmitter, the output should be at its minimum value, which is 4mA. This "zero pressure" or "no load" reading confirms the transducer is functioning correctly at its baseline. If the reading is significantly different from 4mA, it may indicate a wiring issue, a faulty transducer, or an incorrect power supply. For Current Output Transducers (4–20 mA): This Sensor is a 4-20mA transmitter. To test its current output, connect a multimeter in series with the output signal wire. Ensure the multimeter is set to measure current (mA). With no pressure applied to the G1/4 connection, the reading should be 4mA. As pressure is applied within its 0-1, 0-1.6, or 0-2.5 MPa range, the current output should increase proportionally, reaching 20mA at the maximum specified pressure. This proportional increase is how the pressure transducer works, providing a reliable signal for control systems like a logic controller. For Voltage Output Transducers (0–5V, 0–10V, or mV): This section is not directly applicable to the Sensor, as it is a 4-20mA current output transmitter, not a voltage output transducer. However, for voltage output transducers in general, one would connect a multimeter in parallel across the output signal wires and set it to measure voltage (V or mV). With no pressure, the output would typically be 0V. As pressure is applied, the voltage would increase proportionally, reaching 5V or 10V at the maximum pressure, depending on the transducer's specifications.