YSI IQ SensorNet 2020 XT Terminal - Manual (Page 119)

System 2020 XT USB Operation
4 - 41 ba76019e01 12/2012
The sequence in detail:
Normal operation  In normal operation the main controller carries out regular controller
operation.
 The MIQ/TC 2020 XT (configured as a terminal) works as a regular
terminal.
 The MIQ/TC 2020 XT (configured as a terminal) backs up the
system configuration:
– Automatic backups are carried out 2 minutes after initialization
and regularly every further 60 min.
– In addition to the automatic backup the backup can also be
started manually at any time (see section 4.9.3). The timer for the
automatic backup is reset for this.
– The automatic backup is always only carried out in the measuring
state (normal measured value display). If the MIQ/TC 2020 XT is
in another operating state, the next backup is carried out as soon
as a switch is made again to the measuring state.
– If a backup fails, e.g. because another terminal is in the setting or
calibration mode, a new backup is attempted after 30 s. After
three failed attempts the next automatic backup takes place after
60 min.
– During the backup a message appears on the display. If desired,
the running backup can be canceled with the <ESC> or <M>key.
 The MIQ/TC 2020 XT receives ongoing information on the status of
the main controller.