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KROHNE Summit 8800 Vol 1 User Manual

Page 33

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08/2013 - MA SUMMIT 8800 Vol1 R02 en

SUMMIT 8800

INSTALLATION AND REPLACEMENT

04

NOTE: Under CSA the correct battery type must be used.

4 .2 .6 Real time clock

The real time clock is powered by the backup battery. If the battery is replaced, make sure that

the time is set correctly afterwards.

The date and time can be set within “edit” mode on the SUMMIT 8800, if the “time” parameter

has been made available in the display by the integrator.

The same can be done from the Configurator within the general tab under date/time. See vol-

ume 2.

The accuracy of the clock is optimized for 20°C and deviates +/- 3 ppm/°C, (it is recommended

that the ambient temperature around the flow computer is maintained as close as possible to

20°C), it is therefore a good habit to synchronise the clocks.

The most effective way to synchronise the clock is by the network using a time server and SNTP.

It is also possible to synchronise via a supervisory system using Modbus.

Care should be taken using summer- and wintertime. Change-over will result in longer or

shorter days and associated different daily totals.