Needle Megger 500V/500Mω Insulation Tester Resistance Meter ZC25-3B

Description

Ashley Automation
Needle Megger 500V/500Mω Insulation Tester Resistance Meter ZC25-3B
The meter used to measure various motors, cables, transformers, telecommunications components, household appliances and other electrical equipment insulation resistance.
specifications:
Measuring range:0-500
Grade 2, accuracy: 10 (the equivalent of an arc long level 1).
3, use conditions: temperature - 25 ~ + 40 ℃ relative humidity is not greater than 80%.
4, crank, rated speed 120 r/min.
5, the external magnetic field effect: when the degree of outside magnetic field is 0.4 kA/m, instrument allows change amount 100% of the grade index.
6, tilted effect: when the instrument from horizontal position to an arbitrary direction 5 °, the instrument allows change amount 50% of the grade index.
7, insulation resistance: instrument all wiring insulation resistance between surgery and should not be less than 20 m euro.
8, test voltage: the instrument tolerated 50 hz frequency sine wave ac voltage for 1 min test, the test voltage RMS:
9, scale arc length: about 65 mm.
10, weight: about 2 kg.
11, exterior size: 1 * b * h.m m: 205 * 120 * 145
Directions for use:
1, this instrument when use must be far away from the magnetic field, horizontal.
2, in make insulation measurement, the ends of the analyte can be respectively connected to the "ground" and "line" on two terminal, according to the rated speed turn the crank, can be measured resistance values.
3, in make sense to test, will be measured termination "line" and with good ground to meet on the "ground" column.
4, in the determination of the insulation of the cable to cable cable core shell when measured respectively on both ends meet in addition to "ground" and "line" two terminal, then the lining of the cable between shell core insulation "protection ring", in order to eliminate the error of measurement caused by surface leakage.
matters needing attention:
1, insulation resistance meter when not in use should be in a fixed cupboard, environmental temperature shoulds not be too cold or too hot, avoid by all means in a filthy, wet on the ground, and to avoid in the air containing corrosion effect (such as acid, alkali steam).
2, should avoid as far as possible severe, long-term vibration, the header pivot damaged and affect the calibration instructions and precious stones.
3, the connections between the analyte and cannot use the winding connection of the wires should be separate from the connection, not affected by the winding insulation fault readings.
4, to be measured before and after the measurement content must be fully discharge, in order to ensure equipment and personal safety.
5, when lightning or adjacent equipment with high voltage conductor, prohibited to use measuring insulation resistance meter, only if the device is not charged and can't be charged by other power induction.
6, turn to shake the handle by slow fading fast, if discover pointer refers to zero is not allowed to continue shaking force, in case of damage of coil.
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