Cosen AH-250H, Instruction Manual

Page: 20 / 134

GENERAL INFORMATION
Section 2
2-7
S1
K1
AC110V
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2. Waveform measurement circuit and measured waveform.
3. RC circuit
Element marker have introduced in recent years spike killers (sometimes called arrester)
which are made of mainly zinc oxide with a characteristic of varistor. Comparison of their
characteristics toward surge voltage indicates that the former has a smooth attenuation curve
with the crest value of a steep surge voltage being less than 4.5 times of the rated voltage. Noise
entering a signal line due to electromagnetic induction is considered due to the magnitude of
noise change rate rather than due to the noise crest value of the noise generating source. The
attenuation waveform of the RC is therefore less unlikely than the pulse waveform of the
arrester to cause electromagnetic induction. The RC compound element is thus considered better
in noise elimination.
Due to the reasons mentioned above, mount a RC compound element on each of AC motor,
AC solenoid and AC control relay.
2.3 GUIDE TO THE MANUAL
SECTION 1, 2, 3, -------10,
APPENDIX.
The instruction manual is divided into ten sections. Each section contains important information
on how to operate the machine properly. Some of the safety precautions are described at the beginning
of each section. Please read and understand the manual before operating the machine. For other
technical information, please check with the dealer or the manufacturer for further detail.
2.4 DOCUMENTATION
Other than this manual, the manufacturer also provided other related technical documents along
with the machine. Please read through them should there be a need.
Page 20 Instruction Manual for AH-250H (B040) 04/12/2014