Ensuring reliable level measurement in tanks with internal obstructions
What happened
The article explains the challenges of non‑contacting radar level measurement in tanks with internal obstructions and outlines siting and echo‑analysis strategies. It emphasises that antenna positioning and echo discrimination are the critical operational details that determine whether a sensor will read the true product surface. Watch whether suppliers can produce FAT/SAT or site‑trial evidence for specific tank geometries before acceptance
Buyer takeaway
Treat siting and echo‑analysis as contractable commissioning deliverables and require supplier FAT/SAT or site trial evidence during pre‑qualification
Cost / money
Incorrect level readings can lead to cleanup, product loss or production interruption; specifying acceptance reduces reactive OPEX exposure
Supplier / commercial
Bidders with documented field results for obstructed tanks gain an advantage; narrowing evidence requirements reduces the bidder pool but increases execution certainty
Safety / operations
Accurate level readings prevent overfill and pump damage; contractual siting and commissioning acceptance lowers direct safety risks
What to watch
Vendor whitepapers are useful but insufficient—demand FAT/SAT reports or site trials specific to your tank geometry
Key facts
- Non‑contacting FMCW radar highlighted as preferred in many cases
- Internal tank obstructions (agitators, coils, baffles) create false‑echo risk
- Siting and echo discrimination identified as necessary mitigations
Source excerpts
High-frequency radar level transmitters with narrow beam angles can reduce the risk of interference in obstructed tanks, but they can’t always avoid it
The most critical risk is overfilling the tank. If the transmitter reports the level as lower than it actually is, a tank may be filled beyond its capacity
This simplicity reduces commissioning time and minimises the potential for human error
