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■Alarm HI and LO limits
The alarm HI and LO limits are always compared with sensor input values. By this function,
whether the indicated value becomes abnormal during hold can be monitored.
If the indicated value exceeds the alarm HI limit or falls below the alarm LO limit, an OVERLOAD
error will result, and the RUN output turns OFF. (Refer to "Error Display List" on page 85)
Alarm HI limit: －99999 - 99999 (invalid at 99999 (initial value))
Alarm LO limit: －99999 - 99999 (invalid at -99999 (initial value))
How to set
SET.
→
- Since both the alarm HI limit and LO limit are set to be invalid as initial values, reset
them for use.
- Since the alarm HI limit and LO limit are independent, use of only one of them is also
possible.
5-11.
Hold Functions
By the hold function, a specific point in a waveform is taken out for HI-LO limit comparison.
The operation of each hold will be described in detail.
■Hold setting --- Common ---
Hold mode
The F377A includes 10 hold modes as shown in the table below.
In the peak, valley, peak-to-peak and average modes, section setting is required. Select all section,
external signal, external signal+time, level+time, level.
When not using any hold function, be sure to set the hold mode to OFF.
(In the OFF state, hold operation is not performed but input values are always displayed.)
OFF
Sample
Peak
Valley
P-P
Average
Rel. Max
Rel. Min
Rel. Dif
Inf. Pnt
How to set
SET.
→
Work Setting
Comp. Setting
→
Hold mode
Work Setting
Hold Setting
→
5 SETTING OF FUNCTIONS
Real Time values
Hold values
Page 2
→
Hold section
－
*There is a section
None
setup.
- All
- EXT
Required
- EXT+TM
- LVL+TM
- LVL
None
* Selectable only for
Peak or Valley.
Page 1
→
Alarm HI limit
HI limit
LO limit
Alarm LO limit
*
45
Chapter
5
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