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Working Condition
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Temperature：5℃～40℃
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Relative humidity：<80%(25℃时)
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Altitude：<2500m
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Power Frequency：50Hz±0.5Hz
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Power Voltage：220V±5V
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Measuring range
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In-phase component (%)：0.0001～200.0
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Resolution：0.0001
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Orthogonal Component (min): 0.001～700.0
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Resolution：0.001
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Impedance (Ω)：0.0001～20.0
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Resolution：0.0001
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Admittance (ms)：0.0001～20.0
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Resolution：0.0001
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Basic Error
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In-phase Component
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ΔX=±(X×2%+Y×2%)±Dx (with Class 1 to spare)
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Orthogonal Component
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ΔY=±（X×2%＋Y×2%×34.48）±Dy (with Class 1 to spare)
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“X”, “Y”——Values displayed
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“Dx, Dy”——Quantization error
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Dx=2，Dy=5
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Percentage
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Class 2 (with Class 1 to spare)
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Working Range
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Current
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(1%～149%)In (In =5A)
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(5%～149%)In (In =1A)
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Voltage
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(5%～149%)Un (Un =100V，150V，100V/)
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(5%～149%)Un (Un =100V/3)
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Working Load
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Current
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TO对TX＜0.12Ω cosΦ=1
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Voltage
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a对x＜0.25VA (100V)
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Reversed Polarity Indication
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Take action according to the polar instructions when the current is larger than 5% of the rated value and the error is larger than 180%.
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Note: If no indication comes up when the current is larger than 10% of the rated value, malfunction exists. In that case please be sure not to increase the current so as not to burn the machine.
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Indication of False Transformation Ratio
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There should be an indication of false transformation ratio when the current is larger than 5% of the rated value and the error is between 30% and 180%.
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Insulation and High Voltage Test
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Terminal TX is connected with terminal (![]() ).
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The power socket can bear a voltage of 1.5kV with respect to the outer shell for 1 min.
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