The instrument is designed to measure DC resistance in inductive and non-inductive circuits of 1 µΩ - 2 kΩ including:

- windings of power and instrument transformers, electric motors, generators, linear compensators and, other high inductance equipment;

- contacts of circuit breakers, resistors, busbars, and other non-inductive circuits;

- compensatory, current limiting, and other HV circuit breaker resistors;

- cables.

MIKO-7M(A) features specialized measurement modes for different configurations of 5 objects, taking into account their specific features, while the user can choose a standard object.

Availability of this function enables systematization of measurement results, and ensures comfortable work with the measurement results.

The instrument has a high level of protection from test cable or mains cable breakdown, EMF of self-induction, and overheat of the test block.

Meets the safety requirements of EN 61010-1 and the electromagnetic compatibility requirements of EN 61326-1 to Class A equipment.

Depending on the type of object, user can select special measurement modes. For example, for a resistive object:

- AUTO: measurement starts automatically when the measurement circuit is closed.

- SINGLE: the measurement starts by user command via the START button.

For an inductive object, the user can also select one of two modes:

- MANUAL: measurement process is started and stopped manually by pressing the START button.

- AUTO: measurement process is started by pressing the START button, and will stop automatically when specified criterion is reached.

In the AUTO mode, a patented automatic measurement method is implemented, which guarantees the highest accuracy of the results in a complex electromagnetic environment.

In addition, the use of this mode for the measurement process enables the device to give the highest possible test current which ensures guaranteed saturation of the transformer magnetic system.

The instrument is provided in two versions. The point of difference between the MIKO-7MA and the MIKO-7M is a built-in battery (MIKO-7MA).

GENERAL FEATURES

Measurement range

1 μΩ - 2 kΩ

Resolution

0.1 μΩ

Accuracy

±(0.1%+0.5 μΩ)

Test current output

0.01 - 10 A

Measurement display resolution

5 digits

Power supply of MIKO-7MA (built-in battery)

Lithium-ion battery

Battery charge time of MIKO-7MA

3 h

Battery runtime of MIKO-7MA (in continuous operation)

8 h

Built-in memory

to 200 measurements

PC connection

USB, Bluetooth

Display

Monochrome graphic
128x64 pixels

Power consumption

120 W

Output

60 W

Power supply (mains voltage)

~ 90-253 V, 47-63 Hz
= 127-354 V

Dimensions

270 x 250 x 130 mm

Weight of MIKO-7M/MIKO-7MA

2.7 kg / 4.0 kg

Environmental protection

IP 67 (instrument cover closed)
IP 40 (instrument cover open)

Operating temperature range

from -20°C to +55°C

Warranty period

3 years

Recommended сalibration interval

3 years

Interface and user manual language

English

STANDARD COMPLETE SET:

Accompanying documents

Main instrument MIKO-7M or MIKO-7MA

Mains cable

Ground cable

Zero resistance standard to check accuracy of instrument

Shunt 75 ShSM M3, 75-0.5 to test the instrument's operability

Fuses VP2B-1V-2A (2 pcs)

Attachment devices set kit bag

WHEN PLACING THE ORDER, YOU SHOULD CHOOSE AT LEAST ONE TEST CABLE FROM OPTIONAL COMPLETE SET OF THE INSTRUMENT

10A Kelvin Clamp test cable 1 x 8.5 m (jaw up to 80 mm)

10A Kelvin C-clamp test cable 1 x 8.5 m (jaw up to 103 mm)

10A Kelvin test cable 1 x 3 m with two probes and four crocodile clips (jaw up to 25 mm). Separate current and potential wires terminated with "banana" plugs.

10A Kelvin Clamp test cable 1 x 4 m (jaw up to 25 mm).

* Optional accessories on request