Dải đo điện trở, µΩ: 1 ÷ 100,000
Dòng điện thử, A: 1 và 10
sai số, % ±0.2
Số phép đo tại dòng điện max khi pin sạc đầy: 200 ( tại I = 10A)
Thời gian sạc, h: không nhiều hơn 6
Thời gian của 1 phép đo 2 sec: - không có CT, từ 2 đến 30 sec. - có CT
Giao tiếp máy tính: USB
Nhiệt độ hoạt động, ºС: -20 ÷ +55
Trọng lượng: 0.4
Kích thước, mm: 115х110х55
Giao diện: English
Nguôn ngữ sử dụng: English
Chu kỳ hiện chuẩn: 2 năm
Cung cấp bao gồm:
Máy, dây đeo, cáp 1.7 m kèm kẹp cá sấu, bộ sạc, cáp USB kết nối máy tính
Catalog
Measurement of transient resistance in the range of 1 ÷ 100 000 µΩ, the error being as low as ± 0.2%
Small-size wrist microohmmeter MIKO-10 is designed for rapid measurement of DC electric resistance of:
- contacts of HV and automatic circuit breakers, interrupters, connecting devices, breakers, and relays;
- bolted, welded and brazing joints of wireways and buses;
- rail fastenings and wheel sets;
- other devices and machinery.
Its production is scheduled for the first semi year of 2016. Orders are accepted.
The instrument is under tests and in pilot operation for being entered into the State Registrar of Measurement Instruments.
Test amperage of up to 10A
The instrument is designed for being applied at electric networks, power plants and substations, traction substations of electric transport, and at industrial enterprises where 10A current is sufficient for measurements.
In case of obvious oxide film on the contacts more powerful microohmmeters are recommended, such as MIKO-21 (current of up to 200A) or MIKO-2.3 (current of up to 1000A), as measurements using low currents in such instances can show higher values of resistance and, as a result, the contacts may be unjustifiably rejected.
Three methods of resistance measurement start-up
Three modes of measurements start-up have been implemented in the device:
- Mode 1: "Single start-up" is intended for measuring the transient resistance of HV circuit-breakers without current transformers or any detachable or non-detachable connections on 1A or 10A current. The measurement is started up by user command;
- Mode 2: "Automatic start-up" is intended for measuring the transient resistance of HV circuit-breakers without current transformers or any detachable or non-detachable connections on 1A or 10A current subject to automatic measurement start-up against the measurement circuit closing;
- Mode 3: "An In-Built CT" is intended for measuring the transient resistance of HV circuit-breakers with current transformers on 10A current. The measurement is started up by user command.
Thermal EMF balancing and other additional functions
MIKO-10 is a modern small-size microohmmeter that meets the latest requirements of users. The instrument incorporates a number of important functions:
- Thermal EMF balancing in the test circuit;
- Automatic disconnection of power supply if the instrument is not used;
- Check of the test loop integrity;
- Automatic start-up of measurements against the test loop integrity confirmation;
- Automatic stop of measurements;
- Beeping the measurements start-up and termination.
Up to 200 measurements at maximum current
The instrument has an energy independent memory of up to 200 recordings, which is sufficient for overall and complex test of a transformer substation.
USB connection to PC facilitates classification and storage of recordings on the computer and generation of measurement reports.
Special software developed by the manufacturer is used for data transfer to the computer and for recordings archiving.
Mobile, portable and energy independent device
An in-built battery of the MIKO-10 ensures its independence, and its capacity is sufficient for performing 200 measurements at maximum current of 10A.
Its light weight (0.4 kg), small size (150x110x55mm) and an in-built accumulator allow us to refer it to a mobile independent instrument. The instrument is straightforward and robust.
Free hands during operation (three methods of fastening the instrument)
The instrument is placed into an ergonomic case that is fixed on the wrist by special belts thus leaving both hands free, that facilitates measurements. The instrument can be fastened to a waist belt, hung on the neck or installed on any flat surface.
Cables of ergonomic design
For convenient connection to the measured object there are specially designed cables of different length, and with different lugs:
- A cable with needle-type spring loaded contacts. It is used, for example, for testing the resistances of busbars and terminal buses;
- A cable with crocodile clips.
Operation at any weather conditions
High accuracy of results is ensured even for diagnosis in heavy weather conditions. The MIKO-10 operation is guaranteed at a temperature range from -20 to +55 °С.
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Specifications
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Value
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Range of resistance measurements, µΩ
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1 ÷ 100,000
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Test amperage, A
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1 and 10
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Limits of relative main error allowed, %
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±0.2
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The number of measurements at maximum amperage and fully charged battery
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200 (at I = 10A)
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Time of battery charging, hrs, not more than
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6
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Time of operating mode setting, sec., not more than
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2
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Time of one measurement
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2 sec. - without CT
from 2 to 30 sec. - with CT
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PC interface
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USB
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Operating temperature range, ºС
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-20 ÷ +55
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Weight of the test block, kg, not more than
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0.4
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Dimensions, mm
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115х110х55
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Interface language
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English
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User manuals language
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English
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Calibration period, year
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2
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Additional accessories (on order)
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Item, Index |
Application |
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Test cable with spring loaded needle-type contacts (2 pcs.). SKB042.06.00.000/-01 |
Test cable with spring loaded needle-type contacts (1.5 m). |
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Test cable (2 pcs.) SKB042.05.00.000 |
Long test cable with a crocodile clip (4.8 m). |
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Test cable (2 pcs.) SKB042.08.00.000/-01 |
A cable for resistance measurement following the four-clip diagram with separate current and potential wires terminated with "banana" plugs. Cable set is completed with two probes and four isolated crocodile clips A25C (1.5 m). |
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Belt universal SKB142.06.00.000 |
For easy mounting of the device on the belt or neck. |
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Case protective OKW7115108 |
To protect against shock loads. |
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A tool bag SKB118.01.00.000 |
Bag for transportation Instrument and set cables |
