Equipped with a remote magnetic flap level gauge, the float drives the flipping of a dual color thin sheet to indicate the liquid level. The magnetic float inside the main body moves up and down with the rise and fall of the liquid level, while driving the dual color sheet inside the indicator outside the main body to flip. When there is a liquid level, it turns red, and when there is no liquid level, it turns black. The boundary between the red and black color bands represents the liquid level height. There is a prominent scale on the left side of the indicator to make the liquid level indication clearer.
Equipped with a remote magnetic flap level gaugeUse the magnetic steel inside the float to drive the flipping of the two-color thin sheet to indicate the liquid level. The magnetic float inside the main body moves up and down with the rise and fall of the liquid level, while driving the dual color sheet inside the indicator outside the main body to flip. When there is a liquid level, it turns red, and when there is no liquid level, it turns black. The boundary between the red and black color bands represents the liquid level height. There is a prominent scale on the left side of the indicator to make the liquid level indication clearer.
Usage Specifications
1. Installation requirements
Vertical installation: deviation ≤ 1 ° to avoid float jamming; Reserve an exhaust valve at the top and install a drain valve at the bottom.
Stay away from interference sources: Keep a distance of more than 30cm from strong magnetic field equipment such as motors and transformers to prevent magnetic coupling interference.
Heat tracing measures: Low temperature media need to be equipped with electric or steam heat tracing, with temperature control ≤ boiling point of the medium+10 ℃.
2. Operation process
Usage steps: First open the upper valve, slowly open the lower valve to avoid rapid impact of the float; Close sequentially during shutdown.
Sewage cleaning: Regularly open the sewage valve to remove impurities, and use anti-corrosion tools for corrosive media.
3. Signal transmission
Wiring specification: Single ended grounding of shielding layer (control room side), distance between power line and signal line>30cm.
Remote monitoring: Supports 4-20mA signal output, load resistance ≤ 500 Ω, and requires regular inspection of terminal oxidation.
Precautions
1. Daily maintenance
Cleaning and maintenance: Clean the float and cone tube quarterly with non-magnetic tools to prevent dirt from affecting accuracy.
Sealing inspection: The flange gasket should be replaced every six months, and the explosion-proof type should be tested for grounding resistance (≤ 1 Ω).
2. Fault handling
-Display Exception
Flip the board without flipping: Check the magnetic properties of the magnet (replace), and remove impurities and blockages (clean the drain).
Liquid level jump: Check for cable shielding layer damage, dry reed tube virtual welding, or float magnetic attenuation.
-Signal fluctuation
Check for power ripple (<50mVp-p), terminal oxidation, or changes in dielectric density.
3. Special Scenarios
High temperature and high pressure: 316L stainless steel with PTFE lining is selected, with a working pressure of ≤ 25MPa and a temperature of ≤ 450 ℃.
Corrosive media: Use PTFE lining or titanium alloy float to avoid direct contact with strong acids (such as concentrated sulfuric acid).
Safety Warning
Explosion proof environment: It is prohibited to disassemble the transmitter while it is live. Explosion proof types require regular testing of their explosion-proof performance.
Medium hazard: In case of toxic medium leakage, priority should be given to closing the upstream valve and initiating emergency discharge.