1、 Product Introduction:
MZC-HIThe DC resistance speedometer is a high-precision replacement product for DC single and double arm bridges. The instrument adopts advanced switching power supply technology, consisting of four and a half positionsLCDLCD display measurement results, three and a half digitsLCDThe LCD display environment temperature or test current value overcomes the limitations of other similar productsLEDThe disadvantage of inconvenient reading of display values under sunlight, and it also has an automatic arc extinguishing function. This instrument has the advantages of fast speed measurement, high accuracy, intuitive display, strong anti-interference ability, small size, low power consumption, stable and reliable test data, and is not affected by human factors. It is an ideal instrument for measuring the resistance of various inductive loads such as power transformers, as well as the contact resistance of low-voltage switches, wire and cable or weld interface resistance. Its measurement speed is faster than that of an electric bridge. The instrument is equipped with a rechargeable battery pack inside（12V）Dual use of AC and DC, convenient for on-site and field testing.
2、 Product features:
MZC-HI DC Resistance Speed Tester is an ideal instrument for measuring the resistance of various inductive loads such as power transformers, as well as the contact resistance of low-voltage switches, wire and cable or weld interface resistance. Its measurement speed is faster than that of a bridge. The instrument is equipped with a rechargeable battery pack inside（12V）Dual use of AC and DC, convenient for on-site and field testing.
3、 Product Technical Parameters:
1. measurement range：0～2000Oh.(Six levels in total)
test current：
3A(20mOh!2Ω)
0.3A(20Ω)
0.03A(200Ω)
0.003A(2000Ω)
resolution：
1μ Omega(20mΩ gear)
10μ Omega(200mΩ gear)
0.1mΩ(2Ω gear)
1mΩ(20Ω gear)
10mΩ(200Ω gear)
0.1Ω(2000Ω gear)
accuracy：
1mOh!10mΩ(±1.0 % +2 d )
10mOh!2000Ω(±0.5 % +2 d )
2. other：
Total power consumption：≤30W
Working temperature and humidity： 0℃～40℃;≤85 % RH
pressure resistance：AC1.5kV 50HZ 1min
working power supply：14.8V/2.2AhLithium ion rechargeable batteries; AC220V 50 HZ (±10 %)
size：350mm(L)×260mm(W)×140mm(D)
weight：about3kg
