Yokogawa Value Series FX1000 - Manual (Page 207)

9-2
IM 04L21B01-01EN
• Conditions of TLOG Computation and Rolling Average
Press MENU (to switch to setting mode), and select the Menu tab > Math channel >
TLOG, Rolling average.
• Display for Computation Errors and Handling of Overflow Data in
Statistical Computation
Press MENU (to switch to setting mode), hold down FUNC for 3 s (to switch to basic
setting mode), and select the Environment tab > Math.
Setup Items
• First-CH/Last-CH
Set the target channels.
• Expression/Span
• Math On/Off
Select On for channels to be used.
• Calculation expression
Enter the expression using up to 120 characters.
Pressing the Input soft key displays a window used to enter the expression.
Press the M1/M2 soft key * to switch between a screen used to enter values and
characters and a screen used to enter operators and functions. Use soft keys,
arrow keys, and DISP/ENTER to enter an expression.
* On FXs with the power monitor function (/PWR1 option), there is also an M3 soft key.
For details on how to write expressions, see section 9.2.
Note
You cannot use both a USB keyboard (/USB1 option) and the FX keys at the same time to
enter expressions. If you press a soft key or other FX key while you are using a USB keyboard
to enter an expression, the expression that you have entered up to that point will be cleared.
9.1 Setting the Expression, Measurement Range, Alarm, Tag, and Data Storage on Computation Channels