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Figure x. analog measurement flatness, L harmonic distortion: -100db typical 1khz, -97d, Figure ix. measurement thd+n – Measurement Computing IOtech 640 Series User Manual

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Specifications are subject to change without notice.

11.b-6 Specifications, Plotted Data

967692

IOtech 640 and 650 Series

Figure IX. Measurement THD+N

THD+N (dB)

-70

-75

Figure X. Analog Measurement Flatness

Analog Measurement Flatness

-0.02

-0.015

-0.01

-0.005

0

0.005

0.01

0.015

0.02

10

100

1,000

10,000

100,000

Frequency

Fl

at

ness (

dB

re

la

tive t

o 1kH

z)

Specification Limit -0.1dB

Specification Limit +0.1dB

typical channels

640

650

-

-

-

-95

-90

-85

-80

10

100

1,000

10,000

100,000

Frequenc

AC Coupled

DC Coupled

640

650