Double remote transmission is a kind of differential pressure transmitter
by installing remote transmission device on a pipe or container to feel the pressure, the pressure within the capillary pump silicone oil (
Or other liquid)
Pass into the body of the transmitter, then by transmitter inside the body & delta;
Chamber and amplification circuit boards, after stop using double far eastone differential pressure transmitter, we also want to major maintenance equipment double far eastone differential pressure transmitter.
Double far eastone differential pressure transmitter maintenance instructions: 1, check the double far eastone differential pressure transmitter installation hole size: if the size of the mounting holes is not appropriate, the sensor during the installation process, the threaded portion is very susceptible to wear and tear.
This not only affects the sealing performance of the equipment, and make the pressure sensor cannot give full play to the role, may even produce safe hidden trouble.
Only right before installation to avoid wear thread 2, keep dry: although the sensor circuit design to withstand harsh extrusion processing environment, can not waterproof, but most of the sensor in the humid environment is unfavorable to the normal operation.
Therefore, we need to ensure extrusion machine machine barrel water leaking of water cooling device, otherwise it will cause adverse effect of sensor.
If the sensors have to expose in the water or damp environment, should choose to have strong waterproof special sensor.
3, select the appropriate location: when the upstream of the installation position of pressure sensor is too close to the production line, not the top of the molten material may wear sensor;
If after the location of the sensors are installed in, between the sensor and the screw stroke may produce the stagnation of the molten material area, there is likely to produce degradation, melting pressure signal may also transfer distortion;
If the sensor is too barrel, screw could be at the top of the touch sensor in the process of rotating and cause it to further deteriorate.
Generally speaking, the sensor can be located in the barrel in the front of screen, before and after the melt pump or mold.
4, careful cleaning: in the use of steel wire brush or special compounds to clean before extrusion machine machine barrel, should be removed all of the sensors.
Because both clean way may cause the vibration of the sensor membrane damage.
When the barrel was heated, should also won't produce the wear sensor is removed and the use of the soft cloth to wipe the top of the sensor hole also needs a drilling machine with clean and clean up the guide bush.
5, avoid interference in low temperature: in the process of extrusion production, for the plastic raw materials, from solid to molten state should have sufficient & other;
Soak time & throughout;
If the extruder haven't reached operating temperature before start to production, then the sensor and extruder are subject to a certain degree of damage.
In addition, if the sensor were removed from cold extrusion unit, the material is likely to produce vibration membrane adhesion on the top of the sensor damage.
Before the demolition of sensors, therefore, should confirm the barrel temperature is high enough, the inside of the barrel material softening conditions.
6, maintain the cleanness of mounting holes: keep the mounting holes clean and prevent the molten material jam is very important for guaranteeing the normal operation of the equipment.
Before the extruder is clean, all the pressure sensor should be removed from the barrel in order to avoid damage.
Sensor in demolition, the molten material may inflows into the mounting holes and hardening, if these residual molten material is not removed, when installing sensors again may cause its damaged at the top.
Cleaning kit to remove the residue of molten material.
However, repeat the cleaning process is likely to deepen the installation hole of sensor damage.
If this happens, you should take some measures to increase the sensor in the positions of the mounting holes.
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