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Unity Low Voltage Monitor | Newmar

Supplier: GFS Power

A digital battery monitor and alarm with low voltage disconnect integrates rack mount rectifiers into a fully functional power system.

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This 1RU assembly contains numerous DC control and monitoring features that integrate power and distribution components into a highly functional system.

Built-in features include: low voltage disconnect, digital monitor of voltage and amperage, battery disconnect breaker, and alarm contacts. The digital display monitors bus-voltage, battery voltage, system output current, and low-voltage connect/disconnect set points.

Alarm contacts actuate on low voltage and battery-disconnect conditions. Rear panel bus bars provide ample terminal landings for easy integration with rack mount rectifiers, distribution panels and batteries.

Features:

  • Digital monitor displays system bus voltage, battery voltage, total rectifier amperage, and connect/disconnect voltage set points, and system ambient temperature
  • For use with 12, 24, and -48V systems
  • Solid state (FET) low battery voltage disconnect with adjustable set points and manual over ride switch for system maintenance/testing, with adjustable low battery alarm contact alerting to impending system shutdown
  • 100 amp battery disconnect breaker for system protection and easy testing and maintenance
  • Form C alarm contacts
  • All these functions in a compact 1 RU unit, minimising system rack space

Electrical

  • Nominal system voltage: 12, 24 or 48 VDC
  • Voltage range: 8 to 65 VDC
  • Grounding: Positive or Negative (polarity insensitive)
  • Maximum continuous current: 100 amps DC
  • Battery breaker: 100A with handle guard
  • Low-voltage battery disconnect: 100A, solid

 

VDC

Disconnect

Connect

Adj. Range

12V

10.4V

12.2V

10-16V

24V

21.0V

24.5V

20-30V

48V

42.0V

49.0V

40-60V

Mechanical

  • Chassis: aluminium, black powder coat
  • Terminals:
    • Plated copper. Landings for up to three rectifier inputs, with separate battery bus
  • Rack Size: 19" or 23", 1U
  • Cooling: Convection
  • Dimensions: 1.75" H x 19/23" W x 11" D
  • Weight: 6.25 Lbs.

Environmental

  • Operating temperature range: 0 to +60°C

Indicators/Adjustments/Alarms

Meter: Display (via front panel selector switch)

  • DC volts
  • DC amps
  • LVD thresholds: Connect and Disconnect
  • Ambient temperature
  • Adjustable brightness
  • Default settings restore feature

Meter power source selector switch:

  • Rectifier/Battery allows meter read if loss of AC or DC power

Alarms/Indicators:

  • Form C alarm contact activates on LVD Open or Battery Breaker trip
  • Form C low battery alarm contact activates on LVD pre-disconnect condition
  • Front panel red LED activates on any alarm condition

Protection

  • Battery: 100 amp circuit breaker
  • Reverse polarity: polarity insensitive design

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