Hioki MEMORY HiLOGGER LR8450 User Manual

182
Checking Alarms
4.2 Checking Alarms
This section describes how to check whether any alarms have occurred on the [Alarm] screen.
1
Press the WAVE key several times to display the [Alarm] screen.
2
2
3
3
4
4
5
5
6
6
7
7
2
2
5
5
1
1
3
3
4
4
1
1
ALM1 to ALM8 Red: Alarm output; Green: No alarm output
2
2
No. Alarm memory number (assigned in order that alarms occur, starting with 1)
3
3
ALM Alarm number (ALM1 to ALM8), COMM, SYNC
4
4
UNIT-CH Module and channel number
5
5
Error Type of error (thermocouple wire break, disconnect, synchoronization error,
low battery)
6
6
Time of occurrence Time at which the alarm occurred
7
7
Time of cancellation Time at which the alarm was cleared
• The alarm memory stores up to 100 alarms.
• Communication disruption errors and synchronization errors (event record) will be logged
regardless of the alarm settings.
• Alarms occurring after the start of measurement are recorded in the log.
2
Under [Display alarm], select the alarm number for which you wish to display an alarm
history.
The history for the selected alarm number ([ALM1] to [ALM8], [COMM], [SYNC]) will be displayed.
ALL

, ALM1, ALM2, ALM3, ALM4, ALM5, ALM6, ALM7, ALM8, COMM, SYNC
To display all alarms, select [ALL].
Scroll through the alarm history using the SCROLL/CURSOR keys.
[COMM]: Communications with the wireless module disrupted
[SYNC]: Synchronization with the wireless module failed
HIOKI LR8450A964-03
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Hioki MEMORY HiLOGGER LR8450 Specifications

General

Storage Media	SD card (up to 32 GB)
Measurement Types	Voltage, Temperature, Resistance, Strain, Pulse, Logic
Sampling Rate	1 ms to 1 hour
Interface	LAN, USB, SD card slot
Power Supply	100 to 240 V AC, 12 V DC
Resolution	16-bit
Voltage Range	±10 mV