60
5.4.8 - SV: Supply voltage
Present only in some models.
5.4.9 - SR: Supply range
Present only in some models.
Indicates the range of supply voltage found. It may have the values: [110-
127] V or [220-240] V. If the range is not determined, it has the value “- -“.
5.4.10 - TE: Dissipator temperature display
5.5 - Installer Menu
From the main menu, hold down simultaneously the “MODE” and “SET”
and “-“ keys until the rst parameter of the installer menu appears on the
display (or use the selection menu pressing + or -). The menu allows you
to view and modify various conguration parameters: the MODE key al-
lows you to scroll through the menu pages, the + and – keys allow you re-
spectively to increase and decrease the value of the parameter concerned.
Press SET to leave this menu and return to the main menu.
5.5.1 - RP: Setting the pressure fall to restart
Expresses the fall in pressure with respect to the SP value which causes.
restarting of the pump.
For example if the setpoint pressure is 3.0 [bar] and RP è 0.5 [bar] the
pump will restart at 2.5 [bar]. RP can be set from a minimum of 0.1 to a
maximum of 1 [bar]. In particular conditions (for example in the case of a
setpoint lower than the RP) it may be limited automatically. To assist the
user, on the RP setting page the actual restarting pressure also appears
highlighted under the RP symbol, see Figure 17.
5.5.2 - OD: Type of plant
VPossible values 1 and 2 referring to a rigid system and an elastic system.
The device leaves the factory with mode 1 suitable for the majority of sys-
Figure 17: Setting the restart pressure
tems. In the presence of swings in pressure that cannot be stabilised by
adjusting the parameters GI and GP, change to mode 2.
5.5.3 - MS: Measuring system
Set the measuring system, choosing between metric and Anglo-American
units. The quantities displayed are shown in Table 6.
Units of measurement displayed
Quantity Metric units Anglo-American units
Pressure bar psi
Temperature °C °F
Flow rate l / min gal / min
IMPORTANT: The regulating parameters GP and GI also change in the
two congurations. In addition the GP and GI values set in mode 1 are
stored in a different memory from the GP and GI values set in mode
2. So, for example, when passing to mode 2, the GB value of mode 1
is replaced by the GB value of mode 2 but it is kept and will reappear
again when returning to mode 1. The same value shown on the display
has a different weight in one mode or in the other because the control
algorithm is different..
NOTE: The ow in Anglo-American units (gal/min) is indicated adopt-
ing a conversion factor of 1 gal = 4.0 litres, corresponding to the metric
gallon.
Table 6: Measuring system
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