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What is an
Insulation Resistance Tester? What is an Insulation Resistance Tester? The measurement of insulation resistance is performed to check the insulation status of electric equipments and circuits, which constitutes one of the important measuring items for safety control. The measurement of insulation of electric equipments and circuits is made using an Insulation Resistance Tester by stopping the operation of the electric equipments and circuits (by stopping power distribution). Voltage of several megohms to tens of megohms is measured in case of the measurement of insulation resistance of electronic parts and electric equipments, and voltage of 1Megohm or less is measured in case of electric works for interior wiring and others. What are the key points to be considered while choosing a suitable model? 1. Analog Type or Digital Type: Analog type is suitable for visually checking the measurement. Digital type is suitable for verifying the measurement by precise values. 2. What do you like to measure by your insulation resistance tester? For measurement of
electronic circuits and the like For use in
measurement in electric works and the like 3. Required rated voltage: A wide range of available from 15V (optimum for maintaining and controlling elevators) up to 1000V / 2000Mohms. There are types allowing two to three ranges by one unit. Please refer to Insulation Resistance Tester comparative chart available for download by clicking here (in PDF). It is also available on Pages 46 of our catalog. Our general catalog can be downloaded by clicking here (in PDF) - 3.2 MB or contact us to request a copy. SANWA is a leading handheld manufacturer since 1941 supporting a wide range of products with a world-renowned Japanese quality. Our products have not only the basic functions required for multimeters, but also sophisticated and versatile features realized by our expertise in the software development and ergonomic design. The products we provide range from multimeters to advanced ones which can satisfy specific needs in measurements and recording, even in the field of opto-electronics. With our compact, yet high-performance and beautifully designed products, we hope to satisfy customers in the world.
Traceability: Traceability to prove the compliance with national and international standards is an essential factor for measuring instruments used as test instruments associated with quality assurance. Products of Sanwa are calibrated by reference samples which is periodically checked for its compliance with national standards.
Warranty: All our products come with 12 month manufacturers warranty, so buy with confidence. Is not the resistance rang of a tester adequate for the measurement of Insulation resistance? The resistance of a digital multimeter or multitester covers the applied voltage (measured voltage) of approx. 0.3 V up to 12V. An insulation resistance tester needs to make measurements at voltage higher than working voltage of a circuit and electric and electronic equipment to be measured. What are some of the examples of major applications of Insulation Resistance Tester?
How to measure insulation resistance of low-voltage circuit? In order to measure the insulation resistance of low-voltage circuit, use an insulation resistance tester with the rated voltage of 500V. Open switches in the distribution board, shut off the power distribution and measure the insulation resistance between wires on the circuit and between wire and ground. If the measured value is below the reference value, open all branch switches and make measurements separately for each branch line of the mains line. The insulation resistance value of the low-voltage circuit is stipulated according to the Electric Equipment Standard.
What are the potential risks and how to measure safely using an Insulation Resistance Tester? * The insulation resistance tester cannot be used on a measuring object in live-wire status * If the measuring voltage is specified, choose a model of the specified voltage. It is a general practice to choose the measuring voltage equivalent to or a little higher than voltage usually applied to the measuring object. * Since the insulating-resistance tester measures resistance values by applying DC high voltage on a measuring object, the measurement may damage the measuring object if voltage is directly applied on the electronic circuit including the IC and LSI. * The insulating-resistance tester generates DC high voltage during measurement. If an electric chock occurs, a falling accident from a high altitude may follow. Use special caution in operation at a high altitude. * If your measuring instrument is provided with a voltage measuring function, use it at no higher than the maximum measuring voltage. To request a quote, please contact us at info@bhumika.ca or at +1 (416) 930 2931 If you wish to discuss your application in detail, please contact us to help us understand your requirements and suggest the most appropriate model. All orders are to be
placed to:
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ISO
9001 Quality Assurance: In November 2002, SANWA ELECTRIC
INSTRUMENT CO., LTD. obtained ISO 9001 certification. (No.
JQA-1453). The certification is given by Japan Quality Assurance
Organization (JQA), which is an authorized member of IQNET, one of
the globally recognized quality assurance organizations. The
certification testifies to our compliance with the International
Quality Assurance Standard. 
CE
Marking: Some SANWA meters come with a CE marking. CE marking is a safety mark which can be attached only
on a product meeting the safety requirements of the Directive of
Council of European Union (EC Directive). A product attached with
the CE mark is designed so as to meet the requirements of the "Low
Voltage Directive" and the "EMC Directive" of the EC Directive.