Blue Sea Systems 1801 Vessel Systems Monitor VSM 422 - Manual (Page 7)

USER INTERFACE OVERVIEW
BOLD text designates a button.
Italicized text designates text on the VSM 422 screen.
The user interface is controlled by the four buttons located below the
display. Each one of the buttons corresponds to the text at the bottom of
the screen.
System information is displayed with eight screens: SYSTEM SUMMARY,
GRAPHICS SUMMARY, DC POWER, STATE OF CHARGE, AC POWER,
BILGE STATUS, TANK STATUS, and LARGE DISPLAY.
Some screens such as STATE OF CHARGE and LARGE DISPLAY have a
MORE button; this can be used to cycle through the information that is not
visible on one screen. In some setup screens <- and -> arrows will be shown.
These indicate that the selection options continue on a screen that is
displayed when the user has scrolled past the top or bottom of the screen.
The data fields for both summary screens can be customized through
display setup.
10
Specifications subject to change. See www.bluesea.com for current information.
SENSORS (continued)
Temperature Sensor
The battery temperature sensor should be located near the State of Charge
battery. It can be mounted to a battery box using the hole, or cable-tied to
the negative battery terminal. IMPORTANT!
Do not fasten the Temperature
Sensor directly to the battery in any way that may puncture or damage
the battery.
Tank Sender
The VSM 422 is compatible with three sender protocols.
Resistive 2 Wire Senders: (see page 94 for Installation Diagram)
10 – 180 Ω VDO—Typical of Europe
240 – 33 Ω Teleflex—North America
Ultrasonic 3 Wire Senders: (see page 94 for Installation Diagram)
Blue Sea Systems PN 1810 and PN 1811.
Blue Sea Systems ultrasonic sender PN 1810 is used for water, waste, and
diesel fuel tanks up to 32" (812mm) in depth. Blue Sea Systems ultrasonic
sender PN 1811 is used for gasoline tanks up to 24" (609mm) in depth.
When connecting the tank sender to ground it is important to connect them
as directly as possible to the main negative bus to prevent high loads such
as battery chargers from affecting the tank readings.
The VSM 422 will not produce accurate readings if a second gauge is
connected to the same tank sender. Install a sender for each gauge if you
wish to read a tank level from more than one location.
The Blue Sea Systems ultrasonic sender requires an external power source.
When power to the sender is lost, the VSM 422 will read the tank as full, and
may trigger the tank’s high level alarm.
For each tank the sender must be specified, and the shape of the tank
set as rectangular or auto-calibrated before accurate readings are displayed.
9
Specifications subject to change. See www.bluesea.com for current information.