WHG-compliant overfill prevention with SIL 2-rated limit probes, continuous level measurement and wireless data transfer. As one auditable safety chain.
Secu-Tech combines FAFNIR-based overfill prevention (LS 300 / LS 500 for EX areas, 76A / NB 220 for non-EX), SECU Tank and TORRIX level measurement, SECU Data telemetry and SECU PID-family product identification into one certified package for fixed installations.
A stationary tank often runs for years without incident. Until the day one connection is wrong, a sensor fails or a level reading is off. Those moments decide product quality, plant safety and regulatory standing.
Overfilling a heating-oil, diesel or solvent tank typically triggers several issues at the same time: WHG-driven soil remediation, mandatory reporting, plant downtime and lost trust. A single failed limit probe or a misread product code is enough to turn a routine delivery into a remediation case. Stationary tanks therefore do not need one isolated product. They need a certified safety chain from limit-level monitoring through product identification to documented data transfer.
FAFNIR-based limit probes deliver the SIL 2 shutdown required by EN 13616 and Germany's Water Resources Act (WHG): LS 300 / LS 500 for hazardous areas, 76A / NB 220 for non-EX installations. SECU Tank, SECU Tank DATA and the TORRIX probes add continuous level and temperature measurement. SECU Data (EX / non-EX) transmits readings and alarms wirelessly to dispatch and back-office systems. SECU Multi PID, Single PID and O²-PID verify the product at the loading arm before any valve opens. All components share one evidence and reporting layer. One system, one audit, one accountable owner.
Stationary deployments draw from four product families that interoperate at the controller and software layer.
FAFNIR LS 300 / LS 500 (EX) or 76A / NB 220 (non-EX) with SIL 2 / WHG certification. The shutdown chain for every fixed tank.
SECU Tank, SECU Tank DATA and TORRIX probes provide continuous, temperature-compensated level data for inventory, reconciliation and alarming.
SECU Data (EX / non-EX) and the SECU Data Manager transmit measurements and alarms to dispatch, control rooms and back-office systems.
SECU Multi PID, Single PID and O²-PID verify the product at the loading arm against EN 14116 product codes before the release.
EN 13616 / WHG / SIL 2
The FAFNIR LS 300 / LS 500 and 76A / NB 220 families are delivered as a SIL 2-rated EN 13616 safety function. They meet the requirements of Germany's Water Resources Act (Wasserhaushaltsgesetz) for water-polluting liquids.
EN 14116
Common product-code framework used by SECU Multi PID, Single PID and O²-PID so that depot, tanker compartment and storage tank can be matched before any valve opens.
ATEX / IECEx
Components used in EX zones (LS 300 / LS 500, SECU Data EX, O²-PID, intrinsically safe field circuits) are available with ATEX and IECEx certification matched to the relevant zone.
FAFNIR-based thermistor overfill prevention, combined with SECU Tank controllers and SECU Data telemetry, is in daily operation on stationary tank assets across Germany, Austria and Europe. Providing the documentary basis required for WHG audits and site permits.
Send us your site setup. Tank count, products handled, EX zoning and the existing limit probes. And we will identify the configuration that fits.
