Iwatsu SS-663, Instruction Manual

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Chapter 1 Overview
10
1.2 Features
The following describes the features of this instrument.

Target of measurement
• Semiconductor switch waveforms
• Transient current and pulsed current etc. of electrical instrument

Compact measurement
The Rogowski Coil that detects the electric current thinly has the
following advantages for the removable type (In the length of the
coil, it is 84mm, and the diameter in the coil section is 1.0mm or
less).
• The measurement in the place where the electric circuit is
complicated can be done.
• The terminal of the semiconductor device can be measured.
• It is useful and flexible even in a narrow point.
• Superior heat resistance and insulation property around the coil

This instrument has the following specifications
(for details, refer
to Section 5.1 “Specifications”).
• Frequency bandwidth: f
L
to 30 MHz
[ − 3 dB]
(f
L
: Low-Frequency cutoff)
• Peak current: 120 A to 600 A
(Three models of 120 A, 300 A and 600 A)
• Sensitivity accuracy: ±2% (at the center of the coil loop)
• Linearity: ±0.05% of full scale

Power supply
• This instrument operates with the supplied alkaline batteries or
equivalent four AA dry batteries. It also operates with the AC
adaptor (option).
Note: The power supply of this instrument is the AC adaptor when
batteries and the adaptor are used in combination. It is
changed from batteries to the adaptor by inserting the
adaptor plug into the outlet. For this reason, during
operation with batteries, this instrument may be stopped
temporarily when the adaptor plug is inserted into the
outlet.