M2 Vessel Systems Monitor
1850DC System Monitoring (up to two batteries)
One input monitors the DC voltage, state-of-charge, current for one battery bank and another input monitors the voltage of an additional battery bank. Alarms include high and low voltage, high current, and low battery.
AC System MonitoringThe VSM monitors a single AC voltage, current, and frequency. Alarms include high and low voltage, high current, and high and low frequency.
Bilge & Tank MonitoringThe VSM has two inputs that can be configured as a bilge or tank monitor. When configured as a bilge input, monitoring functions include pump active, cycle count in the last 24-hours, average cycles in a typical 24-hour period, and total cycles. High alarms can be set for both the minutes of run time in the last hour as well as the number or cycle counts in the last 24-hours. When configured as a tank input, tank status can be represented in both capacity (gallons or liters) or as a percentage of capacity. Custom tank shapes can be auto-calibrated or programmed. Both high and low level alarms can be set for all tanks.
NMEA 2000 certified and uses standard connectors. This allows a single network backbone to be installed for multiple NMEA 2000 devices. The M2 VSM can share certain monitoring functions with other NMEA 2000 compliant screens, such as CZone Displays Touch 5 & Touch 10.
Frequently Asked Questions 
Instructions
1850 M2 Vessel Systems Monitor Firmware Upgrade
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1850 | Specifications | |
|---|---|
| Meter | Bilge Current Tank Voltage |
| Nominal Voltage | 120V AC  230V AC 12V DC 24V DC 48V DC |
| Operating Voltage | 40-300V AC 7-70V DC |
| Current Accuracy | +/- 2% AC +/- 1% DC |
| Current Range | 0-150A AC -500 to 500A DC |
| Frequency | 40-90Hz |
| Minimum Current Draw | 18.8mA @ 12V, backlight off 35mA @ 12V, backlight off |
| Voltage Accuracy | +/- 1% |
| Included | ||
|---|---|---|
| Qty | PN | Product |
| 8256 | AC Current Transformer - 150A AC/50mA AC |
| Optional Accessories | ||
|---|---|---|
 | 1810 | Vessel Systems Monitor Tank Sender - Diesel, Water, Waste |
 | 1811 | Vessel Systems Monitor Tank Sender - Gas Only |
| Included With | ||
|---|---|---|
 | 8413 | Traditional Metal AC / DC Panel - 22 Positions + Mains, M2 Vessel Systems Monitor |
| Meets the following Regulatory Specifications |
|---|
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