ZY9858 Digital Microhmmeter

ZY9858 microhmmeter is an upgraded product for our unique Kelvin bridge, min. resolution 0.1µΩ, wide measuring range from 0-2kΩ, 7 spans, with RS232 interface.

Description

Application

ZY9858 microhmmeter is an upgraded product for our unique Kelvin bridge, which is based on bridge circuit and select built-in precision standard resistor as reference. It not only possess the characteristic like multi-meter – simple, fast and striking, but also maintain the advantage of bridge circuit – accurate, stable and reliable.  It is suitable for accurate measurement of DC low resistance in factories, universities, colleges, metrology center, laboratories, and worksites.

Features

  • Extremely wide range: from 0-2kΩ, 7 spans are available.
  • Minimum resolution up to 0.1μΩ, especially suitable for accurate measurement of low resistance.
  • Adopt 41/2 LED green large digit display, clear and legible.
  • Main resistance element adopts manganin winding resistor, which characterized by small temperature coefficient, good stability and high accuracy.
  • With RS232 interface for easy connection with computer.

Main Technical Specification

SpanMeasuring rangeResolutionTest currentAccuracy class
2mΩ0-1.9999mΩ0.1μΩ10A0.5
20mΩ0-19.999mΩ1μΩ1A0.2
200mΩ0-199.99mΩ10μΩ1A0.2
0-1.9999Ω100μΩ100mA0.1
20Ω0-19.999Ω1mΩ100mA0.05
200Ω0-199.99Ω10mΩ10mA0.05
2kΩ0-1.9999kΩ100mΩ1mA0.05
Display41/2 LED display
Power supplyAC220V 50Hz
Dimension360(W)x99(H)x320(D)(mm)
Weight10kg (approx.)