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MIKO-2.3 is a portable mini-laboratory allowing performing of all tasks connected with resistance measurement in electrical equipment as this instrument operates in four modes: micro-ohmmeter, milli-ohmmeter, kilo-ohmmeter and thermometer.
Watch detailed video-reviews about MIKO-2.3 Multipurpose low / high resistance meter up above or on our YouTube. Watch videos and subscribe.
All types of electrical equipment (transformers, electrical machines and electrical switching devices) require different means for full-rate diagnostic. However, in case of direct-current resistance measurement the multipurpose instrument MIKO-2.3 can be used.
Resistance range for the above listed equipment is wide and resides within the values from 10-3 to 600А and more.
For monitoring of a transformer or a sole circuit-breaker, for instance, a micro-ohmmeter, milli-ohmmeter, thermometer and even kilo-ohmeter are needed. It means that you have to use three or even four instruments one at a time which is not usually convenient. Increasing of the number of instruments increases not only the total cost of a set, but also its weight which complicates transportation of equipment to remote facilities.
Micro-ohmmeter mode is designed for measuring contact resistances of any switching devices as well as collapsible and non-collapsible contact connections in the range within 1 µOhm - 105 µOhm.
In addition, this mode allows you to take into account the presence or absence of a current transformer in the measured circuit:
But the main requirements for micro-ohmmeters are to provide a rather large operating current, which is able to burn through oxidized films. They are formed on the contacts and give a significant inaccuracy in the measurement of resistance.
MIKO-2.3 surpasses all foreign and domestic micro-ohmmeters. The closest micro-ohmmeter in terms of characteristics at a current of up to 500 A has a mass of 7.5 kg and mains charge. MIKO-2.3 with a mass of only 2.7 kg gives a current of up to 1000 A, and also runs on a capacitor bank.
In the micro-ohmmeter mode, the device has an archive for saving 62 results with the values of the measured resistance. Archive is designed to store, view, delete measurement results, as well as to transfer them to a PC.
To transfer data to a PC and maintain a measurement archive, an RS-232 cable, a special adapter (optional) and the MIKO measurement archive program are used.
Milli-ohmmeter mode is designed for measurement of direct-current resistance in circuits with high inductance (transformers, electromagnets etc.) within the range of 100 μΩ - 1 kΩ.
Two submodes are used here: measurement of one-phase and three-phase windings. Besides, MIKO-2.3 has a function of automatic recalculation of resistance measurement results for a three-phase winding:
The appliance has an archive for storage of results of changing the "milli-ohmmeter" mode that allows for storing and reading 63 results for electrical resistance of one-phase windings and 21 result for three-phase windings.
A special program by the manufacturer is used for transmission of data to a computer and for keeping archive records of measurements on a PC.
Kilo-ohmmeter mode is designed for measurement of resistance of ballast, shunt, additional and other resistors with induced voltage up to 5 kV, as well as without induced voltage within the range of 0.1 kΩ - 300 kΩ.
Thermometer mode is designed to measure the temperature of oil, water, air and other non-aggressive environments within the range from -20°C to +120°C.
Identification of each of the four modes is automatic by connecting the corresponding test cable.
Due to a combination of functional and mass-dimensional parameters (200 x 151 x 68 mm; 2.7 kg) MIKO-2.3 achieves cutting edge innovation, while the above features and self-contained power supply ensure full portability and high mobility of the instrument over the vast territory of substation or facility.
The ability of MIKO-2.3 to supply current up to 1000A is realized due to the operation of a condenser battery. The presence of such type of a battery provides full charging of the instrument from 0% to 100% in 5 minutes! Nevertheless, rapid discharge also occurs in some modes of the instrument operation, that determines the dependence of MIKO-2.3 on electrical network. In order to eliminate this nuance, SKB EP has developed an external battery of a modern lithium-ion type which has received the symbol – power bank. The main task of the power bank for MIKO-2.3 is to maintain the charge of its built–in condenser battery to increase the operating time of the instrument and raise the number of measurements without connecting to the network - more details at the link.
Versatility and weight of the appliance are especially critical for organizations responsible for facility commissioning that have to constantly carry heavy weights of instruments and equipment for significant distances.
MIKO-2.3 instrument is easy to use and maintain, reliable and resistant to electromagnetic field influence.
MIKO-2.3 input cables are equipped with crocodile clips with G-cramps of unique design that has no analogues by other manufacturers of instruments. This design ensures quick and faultless connection to an object that excludes errors of measurement of small resistance values, and ensures reliable contact even in case of oxygenated surfaces of an object.
Besides, there is an option of a four-clamp connection of the instrument cables to circuit-breaker bushings and to transformers through external potential contacts.
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Instrument, a stand for the instrument, and documents: User Manual and Log book. |
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For charging the built-in condenser battery of the instrument during resistance measurement on electrical equipment. |
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Micro-ohmmeter test cable 1 x 2.3 m + 1.1 m with C-clamps, jaw up to 80 mm. 900А. Weight is 2.12 kg. |
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For connection to the input pin. Included into the complete set of the K162 measuring cable. |
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For connection to the input pin. Included into the complete set of the K162 measuring cable. |
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Milli-ohmmeter test cable 1 x 6m + 2m with input pin diameter up to 37 mm. Jaw up to 50 mm.
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Kilo-ohmmeter test cable 1 x 3.4m + 2.1m. |
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Thermometer cable 1 x 1.8m. For temperature measurement of oil, water and air. |
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Mains cable 1 x 11 m. Weight 0.68 kg. |
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Interface cable 1 x 1.5m. For PC connection and data transfer. |
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Type: 75ShSM M3 (75ШСМ М3). For functional check in micro-ohmmeter and milli-ohmmeter modes. |
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Accuracy check of the zero point on the resistance scale. The value is 0,000 µOhm. |
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Convenient and durable bag, providing additional mobility during the operation of the device. |
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Convenient and durable bag for transporting cables and accessories. |
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The unit functions as Power bank for the charge maintenance of the built-in condenser battery of the instrument. Battery charge maintenance time is up to 2.5 hours during continuous measurement in the milli-ohmmeter mode, and for not less than 400 measurements in micro-ohmmeter mode. |
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Kelvin C-clamp test cable (jaw up to 80 mm) 1 x 0.9m + 0.9m. Maximum current up to 1000A. Weight is 2.3 kg. |
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Micro-ohmmeter test cable (jaw up to 30 mm) 1 x 4.5m + 1m with crocodile clip and G-cramp. Maximum current up to 500A. |
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Micro-ohmmeter test cable (jaw up to 30 mm) 1 x 3.8m + 1.7m with crocodile clip and G-cramp. Maximum current up to 500A. |
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Micro-ohmmeter test cable (jaw up to 30 mm) 1 x 10m + 1m with crocodile clip and G-cramp. Maximum current up to 500A. |
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Kelvin Clamp test cable, jaw up to 50 mm. Current up to 200A. Length 0.9m. + 0.9m. Weight is 1 kg. |
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Kelvin Clamp test cable, jaw up to 50 mm. Current up to 200A. Length is 2.27m. + 0.9m. Weight is 1.78 kg. |
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For resistance measurement of: air high-voltage circuit breakers and SF6 high-voltage circuit breakers. |
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Micro-ohmmeter cable 1 x 1.8m + 1.8m (can be changed on demand) with removable probes and removable small crocodile clips. |
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Micro-ohmmeter double hand spike test cable 1 x 1.1m + 1.9m (potential contact is spring-loaded). |
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Kelvin C-clamp test cable 1 x 0,9 m + 2,3 m (jaw up to 50 mm). Potential contact is spring-loaded. Current up to 200A. Weight is 1.34 kg. |
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Milli-ohmmeter test cable (jaw up to 30 mm) 1 x 9m + 9m (input pin diameter up to 37 mm). |
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Milli-ohmmeter test cable (jaw up to 50 mm) 1 x 6.5m + 6.5m (input pin diameter up to 37 mm). |
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Milli-ohmmeter test cable (jaw up to 70 mm) 1 x 6.5m + 6.5m (input pin diameter up to 80 mm). |
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Extension cable 1 x 8.5m. |
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Milli-ohmmeter cable 1 x 3m. For resistance measurement on direct current of electric motors, electromagnets, current transformers, etc. |
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Kilo-ohmmeter cable (jaw up to 30 mm) 1 x 0.8m + 0.8m. |
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Manipulating rod is designed for test cables connection from the ground or from the tank cover to the bushings of high-voltage circuit breakers, and to the structural elements of high-voltage disconnecting switches and earthing devices, without the use of ladders or elevated platforms. The manipulating rod is completed with special extension cables. There is a Kelvin clamp with current and potential contacts to connect to the object on one side, and a contact pad on the other side. The device test cable is connected to the contact pad from the ground or a tank cover. Manipulating rod extension cable is made according to a four-wire (Kelvin) scheme with the test current capacity of 100 A in the presence of a good contact.
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In the course of identifying customer needs and modern trends we decided to create a power bank for MIKO-2.3 charging
3 october 2022
The results of MIKO-9A and MIKO-2.3 demonstration held for Russian Railways, JSC employees
28 june 2021
SKB EP company implements three specialized micro-ohmmeters for resistance measurement - MIKO-21, MIKO-1 and MIKO-10, as well as a universal multipurpose low / high resistance meter MIKO-2.3 for resistance measurement in inductive and non-inductive objects.
21 june 2022
SKB EP company implements three specialized instruments for DC resistance measurement in inductive objects - MIKO-7M(A), MIKO-8M(A) and MIKO-9A, as well as a universal instrument for inductive and non-inductive objects - multipurpose low / high resistance meter MIKO-2.3
21 june 2022
All types of electrical equipment (transformers, electrical machines and electrical switching devices) require different means for full-rate diagnostics. However in case of direct-current resistance measurement the multipurpose instrument MIKO-2.3 can be used.
MIKO-2.3 is a portable mini-laboratory allowing performing of all tasks connected with resistance measurement in electrical equipment as this instrument operates in four modes: microohmmeter, milliohmmeter, kiloohmmeter and thermometer.
We hope that next time you will be able to participate.
Our manager will contact you shortly to clarify the data.
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