DEM Ltd. adopted a ‘Quality Assurance’ System, based on regulatory lines of certification UNI EN ISO 9001:2015, a fundamental tool to guarantee our customers the reliability of every single activity of our Company. It is important for us to ensure the conformity of supplies to contractual requirements, the implementation of system improvement, and the monitoring of the maintenance of customer satisfaction.
All DEM filters comply with the current standard and are type-approved
AL.CA. Ltd., D.E.M. Ltd., and Ades Ltd. together decided to establish a Quality Management System that complies with ISO 9001:2015 requirements, each one for its own activity as stated in the system documentation.
We share with you the value of our work
We guarantee the support of our technicians with more than 30 years of experience and the ability to translate customer requirements into electrical and mechanical design, providing also technical support documentation, design testing, prototyping, and validation. All DEM products are designed and manufactured in accordance with current standards and approved by major international safety institutes.
100% of production is tested for both electrical and mechanical parameters. Requirements of product quality and reliability are agreed with the customer (PPM), together with self-certified supplies.
DEM design and develops EMI filters and electronic boards in the laboratory located at the Longarone plant (in Belluno, Italy). In the same plant there is also the e for ElectroMagnetic Compatibility measurements (EMC) according to Directive 2014/30/EU. The laboratory is recognised as a suitable facility for issuing test reports and tests for compliance with standards. Compliance with standards enables customers to affix the CE mark to their equipment. Some QEED products are also UL Listed.
Reference Standards: Emission Measurements
- CEI EN 62233 Measurements executable on all equipment mentioned in table A.1 of the standard
- CEI EN 55011 Measurements of conducted radio interference on AC power supply port
- CEI EN 55014-1 Conducted and radiated radio interference measurements in the ranges 9KHz-300MHz on AC power port
- CEI EN 61000-3-2 Single-phase equipments up to 16A
- CEI EN 61000-3-3 single-phase equipment up to 16°
Reference Standards: Susceptibility Measurements (Immunity)
- CEI EN 61000-4- Electrostatic discharge immunity test COMPLETE
- CEI EN 61000-4-3 Immunity test on radiated radio-frequency fields range 80MHz-1000MHz only PRE COMPLIANCE
- CEI EN 61000-4-4 Test of immunity to rapid voltage transients (Burst) single-phase AC power supply carrier and capacitive clamp signal carrier
- CEI EN 61000-4-5 Surge Immunity Test single-phase AC power supply port
- CEI EN 61000-4-6 Test of immunity to conducted disturbances induced by radio-frequency fields (Injected currents) single-phase AC power supply holder, and direct injection where possible
- CEI EN 61000-4-8 Test of immunity to magnetic fields at mains frequency, maximum loop size 1 metre
- CEI EN 61000-4-11 Test of immunity to line voltage dips and short voltage reductions for single-phase A.C. power supply
- CEI EN 61000-4-13 Test of low-frequency immunity to harmonics and interharmonics for single-phase AC power supplies
