Galvanic isolation: Precise and safe measurements in your application
Reliable measurement data is the basis for efficient processes, quality assurance and trouble-free operation in industry. With galvanic isolation, you can ensure that your measurements remain precise and interference-free. Galvanic isolation prevents interference such as earth loops, potential shifts and electromagnetic influences that can distort your measurement results. Galvanic isolation enables reliable signal transmission even in EMC-loaded environments or with long cable runs and protects your systems when measuring live components. With galvanic isolation in your measured value acquisition systems, you benefit from precise data, higher system availability and reliable operation of your processes.
What are the advantages of galvanic isolation with Delphin?
- Precise measured values without interference: Avoidance of ground loops for clean, unadulterated signals.
- Safe measurements on live components: High channel separation for reliable results during tests and continuous monitoring.
- Reliable data quality thanks to galvanic isolation: Precise and unadulterated measurement results ensure your product development and quality tests.
- Stable data in EMC-critical environments: Protection against capacitive and inductive interference even with long cable runs.
- Flexibility for different measurement signals: Direct connection of thermocouples, Pt100, mA or mV signals without external isolating amplifiers.
- Easy integration into your systems: Retrofittable and compatible with existing measuring and testing systems.
- Less downtime and standstills: Interference-free measurement signals safeguard your processes and reduce unplanned interruptions.
- Improved process and product quality: Precise and reliable measurement data support your quality assurance and process optimization.
- High operational reliability thanks to galvanic isolation: Protect your measuring systems and users when measuring live components.
With galvanic isolation, measurements remain precise and interference-free. Typical areas of application are
- Thermal testing in household appliances
- Type testing and measurements for quality assurance
- Winding temperature measurement in electrical motors
- Temperature measurement in electronic switches
- Long-term testing of electrical storage heaters
- Measurements to acquire test certificates
- Measurements on lamps and lamp components
Practical example of galvanic isolation
Galvanically separated temperature and process measurement in household appliance development
A German manufacturer of household appliances has fully equipped its development laboratory with Delphin measuring devices to ensure precise, galvanically isolated measured value acquisition and analysis. The measurement system comprises 160 galvanically isolated measurement channels distributed across ten flexible test stations. A wide variety of household appliances - from coffee machines and kettles to bread makers - are tested and monitored under real conditions on these test benches. The focus is on precise temperature measurements on live components, such as heating elements and control boards, in order to analyze the thermal behavior under different operating conditions. In addition, other physical variables such as pressure, flow rate and speed are recorded to fully assess the device behavior. Thanks to the high isolation voltage of the Delphin measuring devices, the individual measurement inputs are galvanically isolated from each other and from the power supply, effectively preventing interference from earth loops and potential shifts.
The message devices are integrated into the laboratory network via LAN, enabling convenient online and offline data evaluation with the ProfiSignal software directly at the developer workstations. This enables immediate analysis of the operating data in order to shorten development cycles and make targeted optimizations. The internal data memory of the message devices is used for long-term and endurance tests, which enables seamless recording even without a connected PC, thus preventing data loss. Thanks to the galvanic isolation and the high measuring accuracy of the systems used, the manufacturer can ensure that all measurement data is recorded precisely, unaltered and without interference. This contributes significantly to quality assurance and the rapid development of new energy-efficient and durable household appliances.