Insulation Resistance Meters

The requirement to implement repeatable and automated insulation resistance testing directly on production lines has driven the design and development of dedicated measuring instruments. Sonel MIC-RS meters address this requirement by combining measurement capabilities with a design typical of industrial automation components: DIN rail mounting (using external adapters), an isolated 24 V DC power supply and full compliance with industrial standards (including EN IEC 61557, EN 61010 and EMC requi

Having your electrical equipment damaged during a storm can prove very costly; to make matters worse, it can be quite difficult to get compensation from your insurer. Learn what measures you can take to boost your chances of a successful claim and avoid any trouble with your insurance policy. Electrical damage during a storm A TV set, refrigerator, gaming console, audio equipment, central heating furnace, heat pump and several other expensive appliances were damaged because they were plugg

The influence of polarity of connected test leads on the measurement results The technical department of SONEL S.A receives many customer questions: "Is the polarity of connected test leads important when measuring the insulation resistance e.g of a power cable?" A professional electronic technician, who measures the resistance of a resistor would answer that it is not significantly important, as the results of measurements made in both directions, would not differ from each othe

A well-made electrical wiring systems guarantees reliable power supply for many years, but sometimes a visit from a professional electrician is be necessary. At first glance, when we see the tools an electrician uses, we will know whether we are dealing with a professional in this field, or maybe an amateur visited us with a test light, comprising a bulb and lamp holder from a bygone era. Sonel MIC-5 features With a quick diagnosis by a professional, the lost power supply can be easily res

The insulation resistance measurement involves measuring the current flowing through the insulation material at a test voltage suitable for the object. Based on Ohm's law the insulation resistance of the material from which the insulation is made is calculated. This parameter - thanks to the possibility of comparing it to the required values - is generally regarded as ultimately sufficient for assessing whether the condition of the insulation of an object is satisfactory or not. However,

Possibility to measure in EPA zones, the upper voltage measurement limit up to 1500 V, a memorable memory to save and send to a computer close to 10 thousand measurements, 5,6-inch colour touch screen – only some of the characteristics of the MIC-2511, a new meter from Sonel S.A. The product is perfect for instance in residential construction, when checking industrial installations or transmission networks. Intended use The insulation resistance meter Sonel MIC-2511 is a convenient s

SONEL S.A. based in Swidnica (Poland) offers a wide range of instruments for measuring insulation resistance. Sonel MIC-10k1 and Sonel MIC-10s1, with testing voltage up to 10kV and resistance measuring range up to 40 TΩ, are ultra-modern models offered to the most demanding customers. All models produced by Sonel have 3 measuring sockets, marked as RISO+, G –  Guard and RISO-. When measuring insulation resistance, using only RISO+ (positive) and RISO- (negative) terminal, the measu

Insulation resistance testing is commonly associated with periodic inspections of electrical installations. This is a relatively simple operation and it takes more time to prepare the circuit for measurement than the measurement itself. The rating is pass-fail. If the insulation resistance is higher than 1 MΩ, it can still be operated (for circuits with nominal voltage up to 500 V HD-60364:2008). Devices for this type of measurement are relatively simple, and the choice among the various m

Difficulties encountered during high-voltage measurements of insulation resistance and the  increasing requirements set for professional instruments motivated Sonel engineers to develop a new family of insulation resistance meters. As a result, the launch of four new-generation products has been announced, with MIC-5010 and MIC-5005 models being currently available for users. The biggest challenge for Sonel designers was to reconcile two apparently opposite features of the devices: v

Properly performed acceptance and periodic tests of electrical installations, where protection against electrical shock is based on test stand insulation, require a report on floor and wall resistance/impedance measurements. Bearing in mind accepted rules and technical knowledge, an experienced tester will need special tools, i.e. SONEL PRS-1 resistance test probe and MIC insulation resistance meter. Our three-way PRS-1 test probe, in the shape of an equilateral triangle, has been made in acc

Insulation resistance testers were among the first products offered by SONEL S.A. The products introduced the most recently are two state-of-the art models: MIC-10, a simpler one, and MIC-30, which is provided with additional functions. These testers, which are intended for tests using 1,000 V test voltage, are to replace the MIC-3 and MIC-1000 which have been in production for several years. Insulation resistance tests are performed in order to check the actual condition of insulation of ele

The latest family of instruments for measuring insulation resistance by Sonel S.A. has now been extended with two additional models, including Sonel MIC-10k1 which enables insulation resistance measurements up to 10kV. In the first models of the new series Sonel designers have succeeded in reconciling two apparently contradictory features: a very high resistance to external interferences and the capability to operate on tested objects with the presence of induced voltage. It was also nece

Indicating the conditions of the insulation of electrical networks and equipment is an important element for ensuring efficient protection against electric shocks. Recently, the company, SONEL S.A., has been working hard on the development and production  of state-of-the art devices for such testing.  A number of models with test voltages up to 5 kV and to 10 kV have been implemented. Due to extended measurement functions and immunity to electric fields and other interferences, they