Carlo Gavazzi PQT-90 - Manual (Page 7)

or without analogue measuring inputs (AQ1018, AQ10109)
[2] Enables the gas and water metering.
[3] Selects the ratio of the current transformer. Example: if
the CT (current transformer) primary has a current of 300A
and the secondary a current of 5A, the CT ratio corresponds
to 60 (that results from: 300/5).
[4] Selects the value of the VT (voltage transformer) ratio.
Example: if the VT primary connected to the instrument is
20kV and the secondary is 100V, the VT ratio corresponds
to 200 (resulting from 20000/100).
[5] Selects the serial address of the instrument when the lat-
ter is part of a network of instruments.
[6] Selects the type of electrical system. If no measuring
inputs (AQ1018, AQ1019) have been selected on the previ-
ous page, the box “Full scale power” will appear: select the
most appropriate full scale.
[7] Selects the options for the clock of PQT-90. If the option
“Not to be programmed” is selected, the clock will not be
programmed; to program the hour, select the option
“Synchronize with PC date and hour”, the clock will be pro-
grammed with the date and hour present in the system of
the PC. To make the instrument automatically switch to the
summer time and viceversa, select the option “Automatic
switching to summer time”.
PQTSoft Remote
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SMS messages when an alarm occurs. To carry out the data
download, in this case, it is necessary to use the RS485
serial module.
[3] Click this button to continue the configuration of PQT-90.
The following windows will vary according to the
modules selected in the box “Instrument composi-
tion...” (see previous page).
❑
Instrument working mode, clock and system setup
[1] Enables the energy metering. Select the alternative with
Configuration
PQTSoft Remote
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Configuration
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