SUPER MΩ HiTESTER SM7810 HIOKI

Insulation Resistance: Crucial for Electronic Safety

In an increasingly electrified world, the integrity of insulation in electronic components and materials is not merely a desirable quality; it is a fundamental pillar of safety, reliability, and performance. From miniature electronic devices to high-voltage power systems, insulation prevents unwanted current flow, safeguards against electrical shock, and ensures the proper functioning of circuits. A compromised insulator can lead to catastrophic failures, short circuits, fires, and significant risks to human life. This critical need for precise and reliable insulation resistance measurement elevates the role of specialized equipment designed for this purpose. The product in focus, the SM7810 series (including SM7810 and SM7810-20), represents the apex of this technology. These instruments are not merely measuring devices; they are comprehensive diagnostic platforms engineered to provide unparalleled insights into the insulating properties of various materials and components. With meticulous attention to detail and incorporating the latest advancements, they offer exceptional accuracy, speed, and versatility, empowering engineers, quality control professionals, and researchers to ensure the safety, longevity, and efficiency of countless electrical and electronic systems across diverse industries.

Multi-Channel Testing for High-Volume Production

The SM7810 series stands out prominently due to its formidable 8 channels (parallel and simultaneous measurement) capability, a crucial feature for significantly enhancing throughput in high-volume production environments. This multi-channel design means that the instrument can test up to eight different points or components concurrently, drastically reducing overall measurement time compared to sequential testing methods. This parallel processing capability is invaluable in manufacturing lines where efficiency and speed are paramount, allowing companies to meet demanding production targets without compromising on quality control. The applied voltage for these measurements comes from an external power source, connected via a dedicated voltage input terminal on the rear panel. This design provides flexibility, enabling users to apply a wide range of test voltages as required by specific standards or component specifications. The instrument is designed to handle a broad measurement range for current, spanning from an incredibly sensitive 1 pA to 1 mA. This range is meticulously divided into 8 sub-ranges: 100 pA, 1 nA, 10 nA, 100 nA, 1 µA, 10 µA, 100 µA, and 1 mA. This extensive current measurement capability allows the SM7810 to accurately detect even the faintest leakage currents, which are critical indicators of insulation breakdown. Complementing this, the instrument can measure insulation resistance from 1 $\times$ 10$^2$ $\Omega$ (100 $\Omega$) up to a staggering 1 $\times$ 10$^{15}$ $\Omega$ (1 P$\Omega$). This vast resistance range covers everything from moderately insulating materials to exceptionally high-impedance insulators, making it suitable for a diverse array of insulation testing applications.

Precision and Speed in Leakage Current Detection

The SM7810 series excels in combining remarkable precision with impressive measurement speed, crucial attributes for modern manufacturing and quality assurance processes. The instrument offers a versatile range of measurement speeds, each tailored to different testing needs: FAST (6.8 ms), MED (26.0 ms), SLOW (100.0 ms), and SLOW2 (320.0 ms). The FAST mode (6.8 ms) is particularly impactful for high-volume production lines, enabling rapid go/no-go judgments and significantly boosting throughput. This speed ensures that bottlenecks related to insulation testing are minimized. Despite its speed, the SM7810 maintains exceptional accuracy. Its basic measurement accuracy (in the 1 µA range, FAST mode) for current is $\pm$(2.0 + (0.5 µA / (Measured current value))) %. This formula indicates a highly precise measurement, especially at higher currents within the range. For resistance accuracy, it is determined by the current accuracy plus the voltage generation accuracy of the external power supply. This comprehensive accuracy specification ensures that both leakage current and derived resistance values are highly reliable. The testing voltage setting is incredibly flexible, ranging from 0.1 V to 1000.0 V with a fine resolution of 0.1 V. This wide voltage range allows users to precisely apply the required test voltage for various components and standards, from low-voltage electronics to high-voltage industrial insulators. The ability to set specific test voltages is critical for accurately simulating operational conditions and stressing insulation to reveal potential weaknesses, providing robust insights into its integrity.

Contact Check and Comprehensive Control Functions

To ensure the integrity and reliability of every measurement, the SM7810 series incorporates an intelligent contact check function. This feature meticulously judges the contact state by comparing the measured capacitance to a reference value. Poor or unstable contact between the test leads and the device under test can lead to erroneous measurements and wasted time. By validating the contact, this function ensures that the measurement itself is accurate and reliable, preventing false passes or failures. Beyond this crucial validation, the SM7810 is equipped with a suite of other functions designed to enhance operational efficiency and data integrity. These include Trigger delay, which allows for precise synchronization of measurements with external events or processes, crucial in automated test systems. Averaging can be applied to measurements to reduce noise and improve stability, particularly beneficial for very low current readings or noisy environments. The jig capacity open correction and jig resistance open correction functions are vital for eliminating the influence of the test fixture’s inherent capacitance and resistance, ensuring that only the characteristics of the device under test are measured. Furthermore, the Measured value comparison and judgment function enables automated pass/fail decisions based on predefined thresholds, significantly streamlining quality control processes. This comprehensive array of control features makes the SM7810 highly adaptable to complex testing scenarios and minimizes the potential for human error.

Specialized Applications in Diverse Industries

The unparalleled precision and multi-channel capabilities of the SM7810 series make it an indispensable tool across a vast array of specialized applications, driving safety and reliability in critical industries. In electronics manufacturing, it is crucial for inspecting the insulation resistance of capacitors, resistors, and printed circuit boards (PCBs), ensuring there are no unintended leakage paths that could compromise circuit functionality or safety. [Image: A PCB with various components.] For high-voltage component testing, such as power relays, transformers, and surge protectors, the SM7810 accurately measures insulation integrity under specified voltage stresses, vital for ensuring their safe operation in power distribution systems. In the automotive industry, it is used for evaluating the insulation of wiring harnesses, electric vehicle (EV) battery packs, and electric motor windings, where robust insulation is paramount for safety and preventing vehicle breakdowns. [Image: EV battery pack components.] The instrument is also essential in material science research, particularly for characterizing the insulating properties of new dielectric materials, films, and coatings, enabling the development of advanced materials with superior electrical performance. Its high resistance measurement range is especially useful here for evaluating ultra-insulating materials. Furthermore, in quality assurance and reliability testing, the multi-channel capability allows for simultaneous testing of multiple components, dramatically increasing throughput for batch testing of sensitive electronic parts. The contact check and correction functions ensure that measurements are consistently accurate, even in a high-volume production environment where maintaining perfect contact is challenging. This wide range of applications underscores the SM7810’s versatility and critical role in modern industrial and research settings.

tpt24: Your Global Partner for Precision

When investing in a high-precision instrument like the SM7810 series, the credibility and reliability of your supplier are paramount. We proudly assert that tpt24 is the premier online store for this insulation resistance meter globally. Our unwavering dedication to customer satisfaction and product integrity truly sets us apart in the competitive market of technical equipment. At tpt24, we don’t merely facilitate a transaction; we forge a partnership built on trust and a commitment to excellence. We guarantee the authenticity and quality of every single product we sell, ensuring that you receive a genuine, factory-fresh instrument that performs to its advertised specifications and provides consistently accurate and reliable measurements. Our extensive global reach means that geographical boundaries pose no obstacle to acquiring this cutting-edge technology. We deliver this product to you in any country you reside in, leveraging a robust and efficient global logistics network to ensure secure, timely, and hassle-free delivery directly to your doorstep, anywhere in the world. Our dedicated customer support team is always ready to assist with any pre-purchase inquiries or post-delivery support, ensuring a seamless and satisfying experience from the moment you consider your purchase to years of reliable operation. Choosing tpt24 means investing in unparalleled quality assurance and the convenience of a truly global procurement partner for your advanced electrical measurement needs.

Seamless System Integration and Durable Design

The SM7810 series is engineered for seamless system integration, making it an ideal choice for both automated test systems and standalone benchtop operations. It offers a comprehensive suite of standard interfaces including GP-IB, RS-232C, and EXT I/O. The GP-IB (General Purpose Interface Bus) and RS-232C ports provide robust communication channels for remote control from a PC or a PLC, enabling automated testing sequences and data logging. The EXT I/O (External Input/Output) interface allows for trigger synchronization and control of external devices, making it perfect for integration into complex automated manufacturing lines. These diverse connectivity options ensure that the SM7810 can be effortlessly incorporated into almost any existing test environment, minimizing setup time and maximizing operational efficiency. The instrument’s power supply is designed for global compatibility, with two models available: SM7810 operating on AC 100 V/110 V, 50/60 Hz, 30 VA, and SM7810-20 on AC 220 V, 50/60 Hz, 30 VA. This ensures that the device can be powered reliably in various regions without the need for cumbersome external transformers. The physical design of the SM7810 reflects its industrial-grade capabilities. With dimensions of 425 mm (16.73 in) W $\times$ 99 mm (3.90 in) H $\times$ 488 mm (19.21 in) D and a mass of 10.5 kg (370.4 oz), it is a sturdy and robust instrument, built to withstand the rigors of continuous operation in demanding environments. This robust construction ensures long-term reliability and consistent performance, minimizing the need for frequent maintenance or replacement.

Comprehensive Package for Immediate Operation

The SM7810 series comes complete with a comprehensive set of included accessories, ensuring that the instrument is ready for immediate operation right out of the box, thereby maximizing user convenience and minimizing setup time. Each unit is supplied with a power cord, an essential component for connecting the instrument to its power source, allowing for quick deployment. A detailed instruction manual is also included, providing comprehensive guidance on all aspects of the instrument’s operation, from initial setup and calibration to advanced measurement techniques and troubleshooting. This ensures that users can quickly familiarize themselves with the SM7810’s extensive features and capabilities, enabling them to make the most of its precision and versatility. Additionally, a Voltage input connector L2220 is provided. This specialized connector is crucial for safely and reliably interfacing the external power source to the instrument’s voltage input terminal, ensuring secure connections for applied test voltages. For convenient maintenance and to minimize potential downtime, a spare fuse (built into the inlet) is also included, allowing for quick replacement if needed. Finally, four rubber feet are provided, which can be attached to the instrument’s base. These feet help to provide stability on various surfaces, reduce vibration, and protect the instrument’s enclosure from scratches, further enhancing its durability and ease of use in diverse laboratory or production settings. This thoughtful inclusion of accessories ensures a complete, ready-to-use solution for advanced insulation resistance measurement.