Installation Guide

• Applicable standards IEC61010-1: 2001 (CAT. IV 300V Pollution degree 2)
IEC61010-2-032: 2002
IEC61326: 2000 (EMC standard)
• Electrostatic discharge Performance criteria B
immunity
• Withstand voltage AC5320Vrms/ 5 seconds
Between the Transformer jaws fitted parts and Case enclosure (except for jaws)
• Insulation resistance 50MΩ or more at 1000V
Between the Transformer jaws fitted parts and Case enclosure (except for jaws)
• Conductor size Approx. 1.25" in diameter max.
• Dimension 9.7"(L) x 4.7"(W) x 2.1"(D)
• Weight Approx. 1.7 lbs (including batteries)
• Accessories Battery AA : 4 pcs.
Instruction manual : 1 pc.
Resistor for operation check : 1 pc.
Hard case : 1 pc.
<Supplemental remarks>
Effective value (RMS)
Most alternating currents and voltages are expressed in effective values, which are also referred to as
RMS (Root-Mean-Square) values. The effective value is the square root of the average of square of
alternating current or voltage values. Many clamp meters using a conventional rectifying circuit have
"RMS" scales for AC measurement. The scales are calibrated in terms of the effective value of a sine
wave through the clamp meter responding to the average value. The calibration is done with a conver-
sion factor of 1.111 for sine wave, which is found by dividing the effective value by the average value.
These instruments are therefore in error if the input voltage or current has some other shape than a
sine wave.
CF (Crest Factor) is found by dividing the peak value by the effective value.
Examples:
Sine wave: CF=1.414 Square wave with a 1: 9 duty ratio: CF=3
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