Mine Stray Current Measuring Instrument FZY-3
Darui Electric recommends for you:
Product Use:
FZY-3 Mine Stray Current Meter is a portable rectifier instrument with high sensitivity, multi-range protection circuit. Its characteristics are: wide measurement range, a total of twenty ranges, can separately measure AC/DC stray voltage and stray current, no need for power supply, safe and reliable. Suitable for testing the current and voltage generated by steel rails, water pipes, cables, etc. in coal mines, preventing premature explosion and other combustion and explosion accidents caused by stray current discharge, minimizing fire sources in the mine.
FZY-3 Mine Stray Current Meter Product Usage Method:
4. When AC stray current cannot be measured at a location, DC stray current should also be tested, and vice versa.
5. When measuring stray voltage, the gear positions are: 50mA corresponds to 0.2V, 250mA corresponds to 1V, 1A corresponds to 4V, 5A corresponds to 20V, 10A corresponds to 40V. (i.e., current value multiplied by 4 equals voltage value)
6. When the stray current magnitude is unknown, first set to the maximum range, then gradually decrease until the appropriate measurement gear.
7. When the measured current is greater than 5A, the instrument should only be used for short-term measurement; when the measured current is greater than 10A, the instrument should only be used for instantaneous measurement to avoid large currents burning out components and the meter.
8. When measuring DC stray current, if the meter pointer deflects in reverse, swap the test leads.
9. When the instrument is not in use, it should be placed in the "Off" position.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
