We first need to understand the measurement principle of the radar level meter, the radar level antenna emits a narrow microwave pulse, which is transmitted downwards by the antenna. When the microwave touches the surface of the measured medium, it is reflected back and received again by the antenna system, which transmits the signal to […]
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Dust Protection In the external to the instrument dust is very simple, only need in the radar level meter external plus a layer of protective cover or placed in a sealed box, you can maximize the protection of the instrument, for the measured medium contains dust, impurities and particles, such protection measures. In addition to
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The radar level meter uses microwave pulse measurement and can operate normally in the industrial frequency band with low beam energy. It can be installed in a variety of metallic and non-metallic vessels or pipes for non-contact continuous level measurement of liquids, slurries and granular materials. It is suitable for applications where dust, temperature and
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● Interference problem: Ask the instrument if there is an external power supply, if there is, remove both the external power supply and the signal line, and observe if it is zeroed with battery power only, if it is zeroed, there is interference and the interference measure that GND is connected to the case ground.
Gas turbine flow meter failure analysis-there is display when no flow Read More »
The pressure range selection is large, and the small field pressure cannot be collected. The pressure calibration parameters in the instrument have been restored to the factory settings (if the factory is restored, the voltage value in the P21-P25 screen will be 0.0) and need to be re-implanted. The D2 model is slow in collecting
Gas turbine flow meter fault analysis – pressure display 0 or inaccurate Read More »
If the temperature display is abnormally high when the battery is powered, the battery is dead. If the temperature display is below zero or much lower, the circuit board temperature chip is damaged and the board should be returned to the factory or a replacement board should be issued. Use a multimeter to measure the
Gas turbine flow meter fault analysis – Abnormal temperature display Read More »
● Since D2 is a dual power supply, to determine whether 24V is properly powered, unplug the battery or test with a multimeter. ● Pulse equivalent post terminal dial code 1 to ON, 2, and 3 to OFF. ● Pulse active output, whether PNP type is matched with the site. ● Measure the voltage between
Gas turbine flow meter fault analysis – no pulse output Read More »
● Since D2 is a dual power supply, to determine whether 24V is properly supplied, unplug the battery or test with a multimeter. ● Pulse equivalent after the terminal dial code 2 set ON, 1 and 3 set OFF, equivalent parameters refer to the manual optional ● Pulse equivalent active output, whether PNP type is
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Connect two-wire or three-wire, three-wire from the terminal AGND (GND) lead break wire with the case short or the black jumper cap of the rear panel from ON to OFF end, or remove the signal line at the end of the instrument, a single measurement of the instrument end of the current output is normal
Gas turbine flow meter fault analysis – meter shows 0 with no flow but current output Read More »
Measure if the power supply voltage is normal or if the battery (not less than 3V) is charged at the instrument end Consider whether the outdoor installation is damp from water The circuit board wires loose If the circuit board is faulty, return it to the factory for repair or send a replacement board.
Gas turbine flow meter fault analysis – screen does not light up Read More »
