Shanghai Hongyi radar level gaugeRadar Level Transmitter is widely used in industries such as petroleum, chemical, and power due to its advantages of non-contact measurement, high precision, and adaptability to complex working conditions. The correct installation and maintenance directly affect its measurement accuracy and lifespan. Here are the key techniques:

1. Installation location selection

✅ Ideal location:

• Stay away from sources of interference: Avoid approaching the feed inlet, mixer, or heating coil to prevent liquid level fluctuations or steam interference.

• Avoid obstacles: Ensure that the antenna beam is not obstructed by tank walls, brackets, or internal structures (recommended distance from tank walls ≥ 300mm).

• Vertical installation: The antenna should be perpendicular to the liquid surface, with a tilt angle of ≤ 5 °, to avoid signal reflection and offset.

❌ Avoid location:

• Foam or steam accumulation area (such as near the steam outlet).

• Strong vibration or impact areas (such as pump outlet).

2. Installation method

3. Electrical connection and grounding

• Cable selection:

  • Shielded twisted pair cables (such as AWG18) to avoid electromagnetic interference.

  • Armored cables (Ex d certified) are used in explosion-proof areas.

• Grounding requirements:

  • The transmitter housing and cable shielding layer need to be reliably grounded (grounding resistance<4 Ω).

  • Avoid sharing grounding with motors and frequency converters to prevent interference.

4. Parameter Setting (Debugging)

1. Empty tank calibration: When there is no medium in the tank, set the "zero point" to 4mA (or 0%).

2. Full range setting: Enter the actual tank height (such as 10m) and adjust the corresponding value of 20mA.

3. Echo curve optimization:

   • Use the echo curve analysis function to filter false signals (such as condensate, foam).

   • Adjust the signal threshold to ensure that only real liquid level echoes are recognized.