Vital systems information at the touch of a button in a single display Four meters in one, the VSM 422 saves space and costs less than four individual meters! Blue Sea Systems Vessel Systems Monitor displays data on four critical ships systems (DC and AC electric systems, tank levels, and bilge), helping you identify problems on your boat before they become emergencies. Programmable legends and adjustable alarms help you customize the VSM 422 for your needs. It features three intuitive display modes: Large Font mode for easy reading from a distance, Icon mode for simple visual status, Multi-line Text mode for monitoring five measurements at a glance. Versatile case design offers three mounting options—front panel, rear panel, and 360 panel mounting. Includes DC shunt, AC current transformer, and battery temperature sensor; tank senders sold separately to match tank size and application. Key Features Combines several meters into single unit; saves space and centralizes information Large font mode is easy to read Graphic illustrations of tank and battery levels Provides state of charge, amp hours remaining, percentage of charge, and time remaining Monitors tank levels with high and low level alarms Monitors AC voltage, amperage, watts, and frequency Programmable alarms Monitors bilge cycles, duration, and active; alarms for duration and cycles Three-year warranty Specifications Nominal Voltage: 12V, 24V, 120V AC @ 60Hz, 230V@ 50Hz Operating Voltage: 0-300V AC, 8.5V-33V DC Current Accuracy: ± 2.0% AC, ± 1.0% DC Current Range: 0-150A AC, 0-500A DC Frequency: 40-90Hz Minimum Current Draw: 35mA 12V DC, 18.8mA 24V DC Voltage Accuracy: ± 0.5% Instructions Vessel Systems Monitor ASM 422 quick guide
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