Installation precautions

1. Prevent medium contactAvoid direct contact between pressure sensors and corrosive or high-temperature media to prevent damage to the sensors.
2. Pipeline sedimentation preventionTo prevent debris from depositing inside the conduit and affecting measurement accuracy.
   • When measuring gas pressure, the sensor is installed at the upper part of the process pipeline, and the pressure tap is opened at the top of the process pipeline.
   • When measuring liquid pressure, the sensor is installed in a position where the liquid cannot impact, and the pressure tap is opened on the side of the process pipeline.
3. Anti freezing and rainproofSensors installed outdoors should be equipped with anti freezing and waterproof measures.
   • Antifreeze: The liquid inside the pressure inlet may freeze due to low winter temperatures, causing the sensor to expand and be damaged. Insulation measures need to be taken.
   • Waterproof: Use waterproof connectors and tighten nuts to ensure the sealing of the sensor and prevent rainwater and other liquids from infiltrating through the cable.
4. temperature controlThe pressure tube should be installed in a place with small temperature fluctuations. When measuring steam or other high-temperature media, a condenser (such as a buffer tube, coil, etc.) should be installed to ensure that the temperature of the sensor is within the working range.

Precautions for use

1. Avoid overvoltage impactWhen measuring liquid pressure, the installation position of the sensor should avoid the impact of the liquid (water hammer phenomenon) to prevent the sensor from being damaged due to overpressure.
2. voltage limitDo not use voltages higher than 36V on the transmitter to avoid damaging the sensor.
3. Avoid contact with hard objectsDo not touch the diaphragm with hard objects to avoid damaging it.
4. Medium stateThe measured medium cannot freeze, otherwise the isolation diaphragm of the sensor element is prone to damage, leading to the destruction of the transmitter.

Daily inspection and maintenance

1. Visual inspectionRegularly check the appearance of the pressure sensor for damage, deformation, corrosion, and other issues, and promptly address any problems found.
2. Connection checkCheck the connection parts of the sensor, including cables, connectors, etc., to ensure a secure connection without looseness, detachment, or damage, and promptly tighten or replace the connecting components.
3. Functional testingRegularly conduct functional tests on pressure sensors, compare their measured values with known standard values, and determine the accuracy of the sensors. The sensor can be calibrated using a standard pressure source to check if its measurement error is within the allowable range.
4. Response time testTesting the response time of sensors to ensure timely and accurate reflection of pressure changes is particularly important for sensors used for dynamic pressure measurement.

Cleaning and Maintenance

1. surface cleaningRegularly clean the surface of the pressure sensor to remove impurities such as dust, oil, and moisture. You can use a clean soft cloth to gently wipe the surface of the sensor, avoiding scratching with hard objects to prevent damage to the sensor housing.
2. Cable cleaningClean the cables and connectors of the sensor, remove dirt and oxides, and ensure a good connection. You can use specialized cleaning agents or alcohol cotton balls to wipe the joint area, but be careful not to let the cleaning agent enter the interior of the sensor.

Regular calibration and professional maintenance

1. periodic calibrationRegularly calibrate sensors to ensure their measurement accuracy and stable performance. The calibration cycle can be determined based on actual usage and manufacturer recommendations.
2. Professional maintenanceFor complex faults or situations that require professional maintenance, professional technicians should be contacted for handling to avoid equipment damage caused by improper operation.