Hioki LR8431, Instruction Manual

Page: 81 / 204

4.2 Alarm Output
73
3
4
Chapt
er
4 S
p
ecify
ing Crit
eria for Meas
urement
s
(T
riggering, Ala
rm and T
imer)
You can enable beep tones and an alarm output signal (for external use) for each
input channel by setting its alarm criteria. You can also view alarm output status on
screens that display numerical values ([Wave+Value], [Value+Cmnt] and [Value]).
External alarm output requires connection to the external control terminals.
See Chapter 9, "External Control" (p. 129) for details.
Select alarm input channels on the [CH] screen, and specify alarm criteria on
the [Trig & Alm] screen.
4.2 Alarm Output
Alarm Criteria
Channel alarm status (CH1 to CH10 and P1 to P4)
• Yellow*: alarm criteria are satisfied
• Green: alarm criteria are not satisfied
*. When [Hold Alarm] is enabled (set to [On]),
the indicator remains yellow because the criteria
remain satisfied (until measurement is finished).
The [Buzzer] alarm sound can be set to on or
off. When [All display] is set to [On], the de-
tected waveforms for CH1 to 10 and P1 to 4
set to the alarm source will also be displayed.
Alarm output status (ALM)
• Red: alarm signal output active
• Green: alarm signal output inactive
1
Select the [Channel] setting option to
[ALM]
.
2
Set a check mark [ ] as shown to enable
alarm output.
3
Set the
[Hold Alarm]
as required for your
alarm output destination device.
Setting options:(

default setting)
4
Enable or disable the alarm beeper by the
[Buzzer] setting.
Setting options:(

default setting)
Off

Disable the alarm output signal when alarm
criteria are no longer met.
On Hold the alarm output active state until mea-
surement is finished.
Off

The Memory HiLogger will not sound an au-
dible beep during alarm signal output.
On The Memory HiLogger will sound an audible
beep during alarm signal output.
1 2
: On
: Off
3 4
Configuring Alarm Output
Select the [CH] Screen.
To stop the alarm beeper
while measuring, set the
beeper to [Off] in the
ALM channel settings on
the Waveform screen.