APPENDIX5
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Appendix 2 Glossary
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A
APP
WARNING 392: Cannot set. (Using unit 2ch)
Recording length cannot be set to higher value
because 2 channels are being used. Reduce number o
channels.
WARNING 396: Out of range. (variable)
The settable range for the variable function (captured
voltage range full-scale value×±500) was exceeded.
When this warning appears, the upper and lower
value setting is automatically changed to be within
range.
WARNING 397: Out of range. (scaling)
POINT was set for scaling and the settable range
(shown on Section 9.4.2) was exceeded.
WARNING 398: A/B cursor positions invalid. Move A/B cursors to appropriate position.
WARNING 421: Equation contains a syntax
error.
Correct equation.
WARNING 422: Cannot copy the equation.
(Zxx)
Copy function cannot be carried out, because the cop
source equation contains a Z number higher than the
copy target equation.
WARNING 423: Upper value has to be bigger
than lower value.
Upper limit must be higher than lower limit.
WARNING 610: No interface card. Insert the interface card (PC card).
WARNING 799: Invalid. (shot:CONT.)
Operation is not possible, because the recording
length is set to continuous.
A/D
Conversion of an analog quantity into a digital quantity
Aliasing
Phantom signal components; a phenomenon that occurs if
sampling frequency is low in relation to the frequency of the
sampled signal (see Section Appendix 3.2).
Variance at aliasing
In FFT processing when input signal has more than 1/2
frequency component in sampling frequency, non-existing
frequency spectrum is observed caused by aliasing.
Analog
Continuous physical quantity such as voltage or current
Attenuator
Device for reducing the level of a signal
Bit
Smallest unit of binary information
Byte
Unit of information. 1 byte is made up of 8 bits.
Channel (CH)
Input signal route
Chassis
Metal frame of the unit
Comment
A string input by the user. Also measurement conditions and
other information printed for all functions.
Common mode
Voltage between ground and measurement input line
Cutoff frequency
Point where the filter output amplitude is 1/ of the input.
Digital
Discrete physical quantity
DIV (division)
Increment on display or printout
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