Mine Stray Current Tester FZY-3
Darui Electric recommends
FZY-3 Mine Stray Current Tester Product Usage:
When AC stray current cannot be measured at a location, DC stray current should also be tested, and vice versa.
When measuring stray voltage values, the ranges are: 50mA corresponds to 0.2V, 250mA to 1V, 1A to 4V, 5A to 20V, 10A to 40V. (i.e., current value multiplied by 4 gives the voltage value)
When the stray current magnitude is unknown, first set to the maximum range, then gradually decrease until the appropriate measurement range is found.
When the measured current exceeds 5A, the instrument should only be used for short-term measurements; when the measured current exceeds 10A, the instrument should only be used for instantaneous measurements to prevent high current from burning out components and the meter.
When measuring DC stray current, if the meter pointer deflects in the reverse direction, swap the test leads.
When the instrument is not in use, it should be set to the "Off" position.
Product Applications:
FZY-3 Mine Stray Current Tester is a portable rectifier instrument with high sensitivity and multi-range protection circuits.Its features include: wide measurement range, a total of twenty ranges, capable of measuring AC/DC stray voltage and stray current separately, no internal power supply required, safe and reliable. It is suitable for testing currents and voltages generated by steel rails, water pipes, cables, etc. in coal mines, preventing premature detonation and other combustion and explosion accidents caused by stray current discharge, minimizing fire sources in mines.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
