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HT20IoT-09
User’s
Manual
11
Fig. 5 Description of the HT20IoT monitor reading field
Table 1, 2 shows the symbols displayed on the LCD, and their meanings.
Table 1
Symbol
Display mode
Meaning
constant
file system internal memory installed and ready
for operation
flashing
error of file system internal memory
flashing
file system internal memory full
flashing
file system internal memory installed and ready
for operation, active FTP connection
constant
Alarm activity indicator - alarms 1, 2 active
constant
Alarm activity indicator - alarm 1 active
constant
Alarm activity indicator - alarm 2 active
constant
Alarm activity indicator - alarms inactive