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synchronized every 24 hours by default. Option NTP synchronization every hour decrease
this synchronization interval to one hour.
WWW and security
Security features can be enabled by the Security enabled option. When security is enabled
it is necessary to set administrator password. This password will be required for device
settings. When secured access is required even to actual values reading it is possible to enable
User account only for viewing. Port of the www server can be changed from the default
value 80 using filed WWW port. Web pages with actual values are refreshed according to
Web refresh interval field.
Memory for minimal and maximal values
Minimal and maximal measured values are stored into the memory. This memory is
independent from values stored in history memory (charts). Memory for minimal and