CruzPro VAH-110 Large Display DC Power Management Instrument

The VAH110 Digital Battery Monitor provides accurate low cost
digital instrumentation for three banks of batteries between 9.50
and 33.00 Volts.

Displays battery voltage for three banks and charging or
discharge current and tells you how much battery capacity has been
consumed and how much is remaining in your main house bank. It
keeps track of all current entering and leaving the battery and
applies the appropriate Peukert’s and charge efficiency factors
four times per second.

Displays current being delivered to or draining from the main
house bank (-450 to +450 Amps, in tenths of an amp below 20.0
amps), the number of amp-hours remaining in the house bank (0 to
3000 Amp-Hours) or the percentage charge remaining in the house
bank (0 to 100%).

Set Low and High voltage alarms for each battery bank
independently and a Low Amp-Hours Remaining alarm for your main
house bank. When activated, the built-in 85 dB alarm will sound and
the display will flash.

Five levels of backlighting can be selected.

Calibrations can be altered using the front-panel switches for:
Battery voltage (for each battery separately), battery current,
charge efficiency, Peukert’s exponent, battery bank capacity (in
amp-hours), low and high voltage alarms and low amp hours remaining
alarm value. Two auto-zero functions ( a one minute and/or a 24
hour measurement) are easily initiated from the front panel to zero
the ammmeter for maximum long term accuracy.

The VAH110 draws only 0.035 amps and is designed to be left on
continuously.

The VAH110 outputs Voltage (for all three battery banks), Amps
and Amp-Hours Remaining on the standard NMEA 0183 serial data line.
This information can be used to log performance or repeat the
display information at a remote location on the CruzPro RP30 and/or
RP110 data repeaters.

Specifications:

• Operating Voltage: 9.50 – 33.00 VDC (Higher voltage versions
  available by special order)
• Current Drain: 0.035 amps nominal
• Display: Large 4 digit LCD, 5 levels of backlighting with
  external backlight on/off control
• Data: Volts (for three batteries), Amps, Amp-Hours, percentage
  charge remaining for house bank
• Ranges: 9.50 to 33.00 VDC, -450 to +450 Amps (in tenths below
  20.0 amps, 0 to 3000 Amp-Hours, 0-100% charge remaining Custom OEM
  versions available to 60 VDC
• Battery Size: 100 to 3000 Amp-Hours, programmable
• Data Ouput: NMEA 0183 serial 4800 BAUD, $IIXDR,V; $IIXDR,A;
  $IIXDR,G Programmable as an external alarm output External charger
  control output- Programmable charger on/off control based on
  battery charge remaining
• Alarms: Built-in 85 dB audible alarm. Settable high and low
  voltage alarms and low charge alarm.
• Size: 4.3”’ x 4.3”’ (110m x 110mm)
• Mounting: 2-1/8”’ (54mm) round hole

User
Manual