The T-213H handheld Micro-ohm meter also known as transformer DC resistance tester, DC resistance fast tester and grounding continuity tester, adopts Microprocessor technology and four wire method for testing, which is safe, precise and reliable. It is mainly used to measure the resistance of instrument transformer winding, winding resistance of transformer, conduction test of grounding down lead, conductor resistance of cable, switch, connector, contact resistance of relay, coil, motor, and connection electricity between metal components of equipment shell, lightning strip, ground beam, structure, cabinet, steel bar, water pipe, window, guardrail, radiator, assembly line and other objects resistance test. It is widely used in telecommunication, electricity, meteorology, computer room, oil field, power distribution line, transmission line of iron tower, gas station, factory grounding grid, lightning rod, etc.
Electrical parameters | |
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Power supply | DC 12.6V 2500mAh lithium battery |
Test range | 10.0uΩ-50.00KΩ |
Test current output | 10A, 5A, 1A, 0.1A, 10mA, 1mA |
Test method | Four wire test |
Test range | Accuracy and resolution |
10.0uΩ~1000.0uΩ (10A) | Accuracy 0.2%FS±2bit Resolution 0.1uΩ |
1.00mΩ~100.00mΩ (10A) | Accuracy 0.2%FS±2bit Resolution 0.01mΩ |
100.0mΩ~1000.0mΩ (5A) | Accuracy 0.2%FS±2bit Resolution 0.1mΩ |
1.000Ω~10.000Ω (1A) | Accuracy 0.2%FS±2bit Resolution 0.001Ω |
10.00Ω~100.00Ω (100mA) | Accuracy 0.2%FS±2bit Resolution 0.01Ω |
100.0Ω~1000.0Ω (10mA) | Accuracy 0.2%FS±2bit Resolution 0.1Ω |
1.000KΩ~10.000KΩ (1mA) | Accuracy 0.2%FS±2bit Resolution 0.001KΩ |
10.00KΩ~50.00KΩ (1mA) | Accuracy 0.2%FS±2bit Resolution 0.01KΩ |
Accuracy | 0.2%FS±2bit |
Resolution | Min 0.1μΩ |
Max storage volume | 500 sets |
LCD | 108 mm×65mm color touch LCD display |
Communication | USB port |
Maximum short circuit current | 10A |
Overload protection | Yes |
Automatic discharge | Yes |
Test Cable | 5m |
Test method | Four fire |
Degree of protection | IP53 |
Insulation Resistance | >10MΩ (500V between circuit and shell) |
Withstand voltage | AC 3.7KV/RMS (between circuit and housing) |
Standard | IEC61010-4-3, IEC61010-1, CAT Ⅲ 600V, Pollution Level 2, JJG724-1991《verification regulation of DC digital ohmmeter》, JJG166-1993《Verification regulation of DC resistor》, DL/T967-2005 《Verification regulation of loop resistance tester and DC resistance fast tester》 |
Mechanical parameters | |
Dimension (L×W×H)(mm) | 240×188×85 |
Weight (kg) | 1 (with battery); 0.85 (test cable) |
Environmental conditions | |
Operating temperature | -20°C to 50°C |
Storage temperature | -40°C to 70°C |
Relative humidity | ≤95%RH |