12
7.1.2 Pressure sensor
VASCO Solar requires a pressure sensor with a linear output signal within the range 4
–
20 mA. The pressure transducer can
be powered by any range of DC Voltage which includes the value 15 V dc.
VASCO Solar accepts the signal of a second pressure sensor in order to:
x
realize constant differential pressure (AN1
–
AN2).
x
substitute first pressure sensor when it fails
x
switch pressure sensor by closing digital input IN2
SENSOR 1
x
AN1: 4-20 mA (-) signal
x
+15V: 15 Vdc (+) power supply
SENSOR 2
x
AN2: 4-20 mA (-) signal
x
+15V: 15 Vdc (+)
power supply
8. VASCO Solar Use and Programming
VASCO Solar software is extremely simple to use, but allows a wide variety of parameters to be set for ideal system
calibration. Setting Parameters are organized in 2 levels:
1:
Installer level
A password is required for this level; these parameters are adjustable by trained professionals
Default password:
001
From the menu a different password can be set up.
2.
Advanced level
A second and different password is required; improper setting of these advanced parameters could compromise the
integrity and the life of VASCO Solar and pump;
Default password
002
It is possible to set up a different password.
Installer and Advanced levels can be entered only with the correct password; otherwise, it is impossible to set up
and/or modify any parameters (they can be only displayed).
8.1 VASCO Solar display
Screen is a back-lit LCD displaying 2 rows of 16 digits each. Alarms are indicated by an audible signal.
STOP motor
Menu exit
Alarms reset
START motor
ENTER
Scroll up
Scroll down
