Omron V640 - Page 128

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SECTION 6
Characteristic Data depending on Conditions of Use
CIDRW System
User’s Manual
SECTION 6
Appendix
Communications Distance Characteristics vs. Ambient Noise
The graph below compares the results of measurement using the noise measurement function with
communications distances.
At installation implement measures in regard to metal in the vicinity of the CIDRW Head, power supply
noise, and atmospheric noise, to ensure that the noise level does not exceed 10.
Noise measurement command (applies only when SECS is not used) Refer to page 86.
0
10
20
30
40
50
60
70
80
90
02040608099
(Max)
Noise level
Communications distance (mm)
Relationship between noise level and communications distance (reference values)
(Max.)