Frequently Asked Questions
Common questions about Hall Effect sensors, product selection, and working with Contisys Technologies.
What is a Hall Effect current sensor?
A Hall Effect current sensor measures AC or DC current without electrical contact using the Hall Effect. A conductor carrying current generates a magnetic field; the Hall sensor measures this field and outputs a proportional voltage or current signal.
What is the difference between open-loop and closed-loop Hall Effect sensors?
Open-loop sensors have simpler electronics and lower cost, but less accuracy. Closed-loop (compensation) sensors use a feedback coil to null the magnetic flux, achieving better linearity, wider bandwidth, and higher accuracy.
What are fluxgate (precision) sensors?
Fluxgate sensors achieve the highest accuracy (typically ±0.1% or better) and are used where precision is critical, such as laboratory equipment, grid monitoring, and medical devices. They are larger and costlier than standard Hall Effect sensors.
What industries use Contisys sensors?
Our sensors are used in Railway & Traction (EN50155 compliant), Electric Vehicles & Charging Infrastructure, Solar & Wind Inverters, Industrial Motor Drives, UPS and Power Conditioning, and general Industrial Automation.
How do I select the correct sensor for my application?
Key parameters are: rated input current or voltage (IPN/VPN), measuring range, accuracy class, supply voltage, output type (voltage or current), operating temperature, and relevant standards compliance (EN50155, IEC, etc.). Our product pages list all specifications, and our engineering team can help with selection.
What certifications do Contisys sensors carry?
Products are certified to ISO 9001:2015, ISO 14001:2015, CE, RoHS, and relevant product-specific standards including EN 50155:2021 and IEC 61000-4 series for EMC.
Can you provide custom sensors?
Yes. We offer customisation of current ranges, PCB footprints, connector types, supply voltages, and operating temperature ranges for OEM and volume customers. Contact our engineering team to discuss your requirements.
What is the typical lead time for orders?
Standard products typically ship within 4-8 weeks. Custom designs require 12-16 weeks for NPI. Contact us for current lead times on specific part numbers.
What supply voltage do your sensors need?
Most sensors operate from ±15V or ±12V (split supply) or +5V / +3.3V single supply. Specific supply requirements are listed in each product's datasheet.
Do your sensors work for both AC and DC measurement?
Yes. Hall Effect sensors measure both AC and DC (including DC to the bandwidth limit). Closed-loop sensors can accurately measure DC, whereas some current transformers cannot.
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