Bender ISOMETER IRDH575, Manual

Page: 47 / 120

Operation and setting
48
IRDH575_D00089_05_M_XXEN/01.2020
6.3 HISTORY INFO menu
99 events with date and time stamp can be stored in the memory database.
The database is designed as a ring memory, i.e. the eldest entry is overwritten.
Data is written into a non-volatile memory and therefore provides protection
against voltage failure.
For each record the display indicates the actual record number, the total num-
ber of records, the event message (see table below, right column), the date
and time. The first two records have a special meaning:
1. Last power on time.
2. Lowest measured insulation value
R
F
since memory reset.
Before storing the events with the actual date and time stamp, set the real-
time clock in the ISO ADVANCED menu (refer to page 55).
The following function keys are provided to query data from the "HISTORY IN-
FO" menu: the UP/DOWN keys to change the data record number, the ENTER
key to change from the data record number to the menu item "Clear all:on" to
delete the memory storage, and the ESC key to leave the menu.
A new entry into the memory is signalled with an "H" on the display in the
standard mode. The "H" will be deleted as soon as the "HISTORY INFO" menu
is called up.
Data record Event Display indication
1Supply voltage switched on Power On
2 Lowest measured insulation value Rmin
3...99 Response value Alarm 1 triggered Alarm1
3...99 Response value Alarm 1 cleared Alarm1
3...99 Response value Alarm 2 triggered Alarm2
3...99 Response value Alarm 2 cleared Alarm2
3...99 Error system connection triggered System connection?
3...99 Error system connection cleared System connection?
3...99 Error PE connection triggered PE connection?
3...99 Error PE connection cleared PE connection?
3...99 Device error triggered Device error
3...99 Device error cleared Device error
3...99 System reset (watchdog) System reset