18
E
N
G
L
IS
H
Considering:
AFS = 37.5 (kW), FSO = 20mA,
Hi.E = 28.0 (kW); Lo.E = 10.0 (kW), Hi.A = 99.9 (%), Lo.A = 20.0 (%)
the Ripple (%) becomes: 100,000 x 0.5 x (28 - 10) = 15 (%)
37.5 x 20 (99.9 - 20)
then, enter 15.0 as Fi.S value.
Fi.C
: value of the filtering coefficient to be programmed within the range:
1
≤
Fi.C
≤
255.
The higher is the "Fi.C" value, the higher the filtering of the measured
value and the longer the updating of the analogue output/s and alarm set-
point.
Note: for a correct working of the filter, the relevant coefficient must satisfy
the following relationship: 1
≤
Fi.C
≤
(Fi.S x 4)
≤
255.
P.it
: selection menu of the active power integration time.
Every "t" minutes, the output is updated as an average calculation of the
instantaneous active power measured during the latest time period (t).
Setting of the integration time expressed in minutes. Programmable
value: 1
≤
t
≤
30.
End
: exit from programming.
The exit from programming can occur also for time-out after approx. 20
seconds from the last operation. The display will then show only a blinking
point (if it's not an alarm).
Warning. When the instrument exits from programming due to time-out,
the last parameter which was being programmed will not be saved in the
EEPROM memory.
Note. Displaying of numbers: the range of numbers which can be
displayed by the transducer goes from –999 to +999 (except for the
decimal point).
The negative numbers (which may be displayed for some parameters
such as "Lo.E", "Hi.E", "A.on" and "A.oF") are identified by a blinking
decimal point of the least significant digit.
SptSoft
SptSoft is a software which can be used to easily load and unload the
programming parameters from an SPT-90 to a PC and from a PC to a
single SPT-90 or a series of them connected in a network.
The software can also be used to control the communication in the
network itself.
To install the software insert disk N° 1 in the PC and from the "Start-up" menu
of Windows select "Execute...". Then, type "A:\setup" in the command bar and
then click on "OK" and carry out the instructions on the screen.
Once you run the software, the screen shows the main window of the
programme (see figure on the following page) where it is possible to read
and then modify the programming parameters of the instruments con-
nected to the network.