Blue Sea Systems 1801 Vessel Systems Monitor VSM 422 - Manual (Page 4)

CAUTION
WARNING
The WARNING symbol refers to possible injury to the user or significant
damage to the meter if the user does not follow the procedures.
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WARNING
] Verify that all AC sources are disconnected before connecting or
disconnecting the current transformer. Failure to do so will
generate lethal voltages on the current transformer.
] If you are not knowledgeable about electrical systems, have an
electrical professional install this unit. The diagrams in these
instructions pertain to the installation of the VSM 422 and not to the
overall wiring of the vessel.
] If an inverter is installed on the vessel, its power leads must be
disconnected at the battery before the unit is installed. Many inverters
have a “sleep mode” in which their voltage potential may not be
detectable with measuring equipment.
] If an AC generator is installed on the vessel, it must be stopped and
rendered inoperable before the unit is installed.
] Verify that no other DC or AC sources are connected to the vessel’s
wiring before installing the unit.
] If the meter must be removed, connect the current transformer leads
together before restoring power to the AC system.
] The back of the unit is not waterproof. Do not install where the back of
the meter is exposed to water.
WARNING AND CAUTION SYMBOLS
CAUTION
The CAUTION symbol refers to restrictions and rules with regard
to preventing damage.
Specifications subject to change. See www.bluesea.com for current information.
SYSTEM OVERVIEW
Optional Input:
The pin three connection can be configured as one of three options: a third
tank, a third battery, or bilge monitoring.
AC Functions:
The AC system allows for monitoring of the AC voltage, frequency and
current levels. High and low alarms can be configured for each of these.
DC Functions:
The DC system monitors the voltage levels on up to three batteries, as well
as the current draw on the battery on which state of charge is being
monitored. High and low limits can be set for the voltage on each battery.
A high current alarm can also be set on the battery monitored for State
of Charge.
State of Charge (SOC):
State of Charge gives feedback on how “full” the battery is with usable
energy. The system keeps track of the amp hours (Ah) remaining on the
battery, the charge cycles on the battery, and the temperature of the battery.
Low State of Charge and high battery temperature alarms can be set. With
the low state of charge alarm set, the VSM 422 shows the time remaining
until the alarm will activate, at both the current power usage and at the
average power usage for the last 20 minutes.
Tank Functions:
The VSM 422 is capable of monitoring up to three tanks. The system has an
auto calibration routine for generating a tank shape profile for
non-rectangular tanks. Tank status can be represented in both capacity
(gallons or liters) or as a percentage of capacity. Anti-slosh routines are built
in to increase accuracy of readings. Both high and low level alarms can be
set for all tanks.
Bilge Functions:
The VSM 422 monitors the current run status of the pump, the time running
in the last hour, the cycles in the last 24 hours, and the total cycles since the
last cycle reset. High alarms can be set for both the minutes of run time in
the last hour, as well as the number of cycles in the last 24 hours.
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Specifications subject to change. See www.bluesea.com for current information.