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Megabras portable 10A digital micro ohmmeter from the United States
NegotiableUpdate on 05/09
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Overview
MPK256 is a portable 10A digital micro ohmmeter launched by Megabras, designed specifically for precise measurement of ultra-low resistance. It adopts microprocessor control and Kelvin four wire measurement principle, which can effectively eliminate errors caused by test leads and contact resistance, ensuring the accuracy of measurement results.
Product Details
Product Overview
MPK256 is a portable 10A digital micro ohmmeter launched by Megabras, designed specifically for precise measurement of ultra-low resistance. It adopts microprocessor control and Kelvin four wire measurement principle, which can effectively eliminate errors caused by test leads and contact resistance, ensuring the accuracy of measurement results. This instrument supports 6 selectable test currents from 1mA to 10A, with each current range continuously adjustable from 0% to 100%. It can measure resistance up to 2000 Ω, with a maximum resolution of 1 µ Ω and a basic accuracy of ± (0.2% reading ± 2 words). MPK256 provides four measurement modes: manual mode, production line mode, continuous mode, and sensing mode. The production line mode can retain the configuration of the last test and accelerate subsequent repeated measurements; Continuous mode is suitable for long-term monitoring.
Technical Specifications
| Technical Specifications | Detailed information | |
|---|---|---|
| test current | 1 mA, 10 mA, 100 mA, 1 A, 5 A, 10 A (continuously adjustable from 0-100%) | |
| Resistance measurement range | ||
| ├ 10 A | 0-200 mΩ | |
| ├ 5 A | 0-1000 mΩ | |
| ├ 1 A | 0-200 mΩ | |
| ├ 100 mA | 0-2000 mΩ | |
| ├ 10 mA | 0-20 Ω | |
| └ 1 mA | 0-2000 Ω | |
| Highest resolution | 1 μ Ω (at 10 A test current) | |
| Basic accuracy | ±（0.2% of reading ± 2 digits） | |
| display | Alphanumeric LCD, 4 1/2 digit reading | |
| Measuring principle | Kelvin four wire system | |
| Open circuit output voltage | 最高10 VDC （在1 A 下） | |
| data interface | USB | |
| Built in memory | Can store up to 30000 sets of measurement data | |
| built-in printer | have | |
| power supply method | Rechargeable LFP battery (12V/6000mAh) or 100-240V AC power adapter | |
| battery charger | Built in, supports 100-240V AC or 12V auxiliary DC input | |
| protection level | IP65 (in closed state) | |
| safety standards | Complies with the requirements of IEC 61010-1 | |
| Operating Temperature | -10 ° C to 50 ° C (14 ° F to 122 ° F) | |
| Storage temperature | -25 ° C to 70 ° C (-13 ° F to 158 ° F) | |
| humidity range | 95% RH， No condensation | |
| Dimensions (width x depth x height) | 378 × 308 × 175 mm （14.88' × 12.13' × 6.89'） | |
| weight | Approximately 6.5 kg (14.33 lb) | |
| Standard accessories | 2 sets of combined current and voltage detection wires, 1 grounding wire with crocodile clip, 1 AC power cord, 1 spare built-in thermal printer paper roll, 1 calibration certificate |
Core Features and Application Value
1. High precision and high reliability measurement
MPK256 adopts an advanced signal amplification system, which has the characteristics of no offset and long-term stability, ensuring reliable measurement accuracy. The measurement circuit is equipped with an effective protection mechanism that can withstand voltage peaks generated by high inductance components (such as transformer windings), ensuring the safety of equipment and operators. When higher accuracy is required, users can adjust the test current to between 80% and 100% of the rated value. In addition, the equipment is equipped with an automatic compensation system that can eliminate internal offset errors; If there is suspicion that the temperature difference at the contact point generates thermoelectric voltage, measuring forward and reverse currents separately and taking the average value can further eliminate the error.
2. Wide applicability and flexible configuration
With a wide range of testing currents and measurement ranges, MPK256 is suitable for various scenarios: measuring the contact resistance of switches and circuit breakers, detecting the DC resistance of transformer and motor windings, verifying the resistance of busbar and cable joints, testing the quality of cable and conductor samples, measuring the connection resistance of grounding systems, etc. Measurement data can be downloaded to a PC through a USB interface for subsequent analysis, or remotely controlled through an Android application. The built-in thermal printer supports real-time on-site printing of test results, making it easy to quickly record and archive.
3. Durable and adaptable to harsh environments
The MPK256 features a sturdy plastic casing with a hinged cover and handle, making it impact resistant and lightweight. When closed, it reaches IP65 protection level and is dustproof and waterproof, suitable for laboratory and harsh on-site testing environments. The accompanying MegaLogg 3 software supports data management and report generation, and the open Modbus protocol facilitates integration into automated testing systems.
MPK256 digital micro ohmmeterX 1 unit
2 sets of combined current and voltage detection lines (red/black)
1 grounding wire with crocodile clip
1 AC power cord
Spare thermal printer paper roll x 1
Calibration certificate x 1 copy
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