GKYWG-50As a commonly used liquid level measurement device in the industrial field, radar level gauges exhibit outstanding high precision, strong penetration, and low power consumption characteristics in complex working conditions such as dust and steam. However, in order to fully utilize the performance of the equipment, it is necessary to strictly follow the installation and use specifications. The following will explain from three dimensions: installation environment, operation details, and maintenance points.

1、 Installation environment: Avoid interference sources

Avoid inlet and outlet ports and vortex zones

It is strictly prohibited to install the equipment directly below the inlet and outlet of the container to avoid material impact causing liquid level fluctuations or splashing objects blocking the radar beam. For containers with stirring devices, it is necessary to ensure that the horizontal distance between the beam path and the stirring blade exceeds the measurement range10%If the stirring blade speed is greater than150r/minAn anti-interference baffle should be installed between the beam and the stirring blade to prevent signal attenuation caused by turbulence.

Optimize the top installation position

Priority should be given to installing directly above the vertical axis of the container, ensuring that the antenna beam is pointing vertically towards the surface of the medium. If it cannot be centered, the deviation from the center distance shall not exceed the diameter of the container1/3And the distance between the beam edge and the container wall needs to be≥200mmOr the diameter of the antenna3Twice. For dome or cone top containers, the installation point should be located below the highest point at the top100-200mmAvoid the top curvature causing abnormal beam reflection.

Special working condition handling

In storage tanks with high dust concentration, the antenna needs to be tilted10°-15°Installation to reduce dust adhesion; Simultaneously install a dust cover to maintain the distance between the dust cover and the antenna≥50mmTo prevent beam obstruction. For easily crystallized media, the flange end face and the highest liquid level should be maintained100-800mmSafe distance to avoid crystal particles affecting signal transmission.

2、 Operation details: Standardized installation and debugging

Installation verticality control

Use a high-precision level to adjust the verticality of the antenna, and the error should be≤±1°For threaded connection equipment, high-temperature resistant sealant should be applied to the threads to avoid excessive force during tightening, which may cause damage to the threads; Check the coaxiality and deviation between the sensor and the mounting base after installation≤0.5mm.

Electrical connection safety

The power cord adopts shielded cable, and the shielding layer is reliably grounded with grounding resistance≤4ΩThe distance between signal lines and power cables≥300mmTo prevent electromagnetic interference. In flammable and explosive environments, wiring needs to be completed through explosion-proof junction boxes, and explosion-proof sealed joints should be used at cable entrances.

Initial parameter calibration

After installation, use“Known liquid level comparison method”Calibration: Inject a known height medium into the container, compare the displayed value with the actual value, and control the error within±0.1%FSWithin the scope. If the error is exceeded, useHARTAdjust parameters with a handheld programmer or accompanying software.

3、 Maintenance points: Ensure long-term stability

Regularly clean the antenna

Check the surface of the antenna every week and use a dust-free cloth to clean oil stains, dust, and other attachments. For highly corrosive media, PTFE gaskets should be used to prevent leakage caused by ordinary carbon steel fittings.

Environmental adaptability adjustment

High temperature working conditions (＞200℃）A cooling jacket needs to be installed to ensure the temperature of the sensor body≤80℃Low temperature operating conditions (＜-40℃）Low temperature specialized sensors should be selected to avoid direct contact between the shell and the container wall, which may cause frosting.

Quick response to faults

If the output current of the display module is greater than22mAThe display module needs to be replaced; If the current is less than3.5mAThen the electronic module needs to be replaced. For abnormal data storage, the equipment needs to be recalibrated and the fuse status checked.

Through scientific selection, standardized installation, and meticulous maintenance,GKYWG-50Radar level gauges can achieve long-term stable operation. In practical applications, a certain petrochemical enterprise has reduced the equipment failure rate by strictly implementing the above specifications60%Maintain measurement accuracy±2mmProvide reliable data support for process control.