The MIKO-7M(A) milliometer is developed to measure DC resistance in the range from 1 µOhm ÷ 2 kOhm for the current of up to 10А for: Windings of power and measurement transformers, windings of electric motors, generators, linear compensators and windings of other high-inductance equipment; Contacts of circuit breakers, resistors, buses and other inductance-free circuits; Equalizing, current limiting and other resistors of high-voltage circuit breakers; Сables. The device provides a fully automated process of measuring the resistance of a high inductive load and compensation of thermoelectric power in the external circuit.
Depending on the object type, you can select special measurement modes. For example, for a resistive object:
- AUTO: the measurement starts automatically by the circuit closed.
- SINGLE: the measurement starts upon the User’s comman (by pressing the START button).
For an inductive object, the User can also select one of two modes:
- MANUAL: start and stop of the measurement are conducted manually by pressing the START button.
- AUTO: the measurement is initiatated by pressing the START button and will stopes automatically if criterium specified is reached.
Variable instrument configuration
To select the User and the convenience of connecting to the object, measuring cables of different lengths and different types of clamps/fasteners are specially designed: Current cable 1 x 8.5 m with crocodile clips (jaw up to 80 mm); Current cable 1 x 8.5 m with a G-clamp (jaw up to 103 mm) for connection to transformer; Current cable 1 x 4 m with crocodile clips (jaw up to 25 mm) for resistance measurement of CT and VT windings; Current cable 1 x 3 m. Weight 0.5 kg. With 2 crocodile clips (jaw up to 25 mm) and 2 removable probes (length: 70 mm, plug: 3 mm) for transient resistance measurement of CT and VT contact joints and windings.
1 μΩ ÷ 10 kΩ
up to 200 measurements
Monochrome, 128 x 64 dots
~ 90-253 V, 47-63 Hz = 127-354 W