50
6
Setting and Operation Related to Comparison
50
Setting
a
nd Oper
ation
Rela
ted to Co
mpa
rison
Chapter
6
6-5.
Alarm HI limit, Alarm LO limit
A sensor input value is always compared with the alarm HI limit and alarm LO limit (excluding
analog peak hold
*1
). This function allows users to monitor if sensor input value becomes abnormal
(overload and so on) when on hold.
If the value exceeds alarm HI limit or falls below alarm LO limit, an OVERLOAD error will occur
and the alarm output
*2
turns ON. (oLoAd will be displayed.)
The alarm output is also turned ON when the following indicated values error is detected.
- LoAd
- -LoAd
- oFl1
- oFl2
*1: Overload and so on are monitored against indicated values (hold values when on hold), but not
against sensor input values if used in analog peak hold (peak hold selection = 1: analog, hold
mode = 1: peak hold), but is monitored against indicated values (hold values during hold).
*2: Alarm output is output if an alarm is set to output selection 1 or output selection 2.
■
Alarm HI limit and Alarm LO limit setting method
1.
Select setting mode 5.
→
(four times)
2.
Set "alarm HI limit".
Press the
key once.
Set the alarm HI limit using the
(numerical value input) and
(shift) keys, and
confirm it with the
key.
Press the
key to insert a minus sign.
3.
Set "alarm LO limit".
Press the
key once.
Set the alarm LO limit using the
(numerical value input) and
(shift) keys, and
confirm it with the
key.
Press the
key to insert a minus sign.
4.
Press the
key to return to the indicated value display.
Refer to P.133 “14.Error Message Display” for error details.
FNC
＋
－
ZERO
Alarm HI limit value
(-19999 to 99999)
CAL
HOLD
GAIN
CAL
ZERO
HOLD
FNC
＋
－
Alarm LO limit value
(-19999 to 99999)
CAL
HOLD
GAIN
CAL
ZERO
HOLD
FNC
＋
－
FNC
＋
－
