to call Shanghai Xurong Precision Technology Co., Ltd.
When installing, the pressure sensitive parts of the pressure transmitter
perpendicular to the gravity axis. If the installation conditions are limited,
the zero position of the transmitter should be adjusted to the standard value
The residual pressure cannot be released, so the zero position of the sensor
can not be lowered. The ideal way to eliminate this reason is to remove the
sensor and directly check whether the zero position is normal. If the zero
position is normal, replace the sealing ring and try again.
The output of the pressure transmitter does not change, and the output of the
pressure transmitter suddenly changes, so the zero position of the pressure
relief transmitter can not be returned. The reason for this phenomenon is
probably caused by the sealing ring of pressure sensor.
Whether it meets the requirement of power supply; whether there are wiring
errors between power supply and transmitter and load equipment. If there is no
voltage or polarity on the terminal of the transmitter, the output of the
voltage-free signal of the transmitter can be caused.
The shell of pressure sensor and transmitter should be grounded. Signal cable
should not be mixed with power cable. Strong electromagnetic interference
should be avoided around sensor and transmitter. Sensors and transmitters
should be periodically calibrated in accordance with industry regulations.
When choosing pressure sensors and transmitters, users should fully understand
the working conditions of the pressure measurement system and make reasonable
choices according to needs so as to make the system work in an ideal state and
reduce the cost of the project.
The filling liquid in the isolator and element is transmitted to both sides of
the measuring diaphragm. A capacitor is formed by measuring the diaphragm and
the electrodes on both sides of the insulating sheet.
8. Pressure transmitter should be inspected once a week and once a month, mainly
to remove the dust in the instrument, to check the electrical components
carefully, to check the current value of the output frequently, the pressure
transmitter is weak electricity, must be separated from the external strong