System Metering
System Metering
Xantrex & Bogart System Meters
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Xantrex System Meters
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xantrextm500
TM500, Link 10, Link 20
 

The TM500A provides easy to understand information such as produced and used DC current. It keeps track of the energy your system has available and energy consumed to ensure adequate reserve power capacity and longevity of your battery bank.


The TM500A is both an energy supply "fuel gauge" and a sophisticated user-option "energy storage computer" that records system characteristics and data. It provides data on all critical system functions, and is capable of monitoring total accumulated charge power from sources such as photovotaic arrays, wind power systems, and generator sets. The TM500A comes with 50' (15 m) of cable, a Deltek 50 mV/500 amp shunt, a prewired cable, and a plug-in adapter board.

The TM500A measures and records the following:

  • Battery Voltage: 8 to 32 VDC or to 70 Volts DC with optional 48 VDC adapter
  • Net Battery Current: 0.1 to 999 Amps DC
  • Battery Charge Level: 5% increments
  • Cumulative Amp Hours: Monitors battery bank use and provides estimated battery life information
  • Days since Full: Days since the battery bank was fully charged -- encourages proper battery management by indicating system problems
  • Battery Highest Voltage: Resetable, monitors charge controllers and battery chargers
  • Battery Lowest Voltage: Resetable, monitors system to detect malfunction or system failure.

Link 10 & 20

Single and Dual Battery Bank Monitors

Provides Battery Status Information At-A-Glance

Link 10 (part#84-2016-01) and Link 20 (part#84-2020-00) use sophisticated microprocessor technology to provide complete battery status information for one and two battery banks, respectively. Simple and easy-to-use multicolor displays show volts, amps, amp hours consumed, and operating time remaining. The Link 10 and 20 allow you to select Automatic, Sleep and Scanning modes and automatically calculate and display charging efficiency. The Link 20 can monitor a house bank and starting bank or two house bank batteries at the same time. By adding an optional prescaler, Link 10 can monitor single battery banks up to 500 volts.

Product Features

  • Digital Numeric Display - LED display shows numeric read out of volts, amps, amp-hours and time remaining
  • Easy to read multi-color LED bar graph
  • Splash proof panels allow for outdoor mounting and hands free operation
  • Displays key historical battery information such as charge efficiency, deepest discharge, and average discharge
  • Compatible with 12 and 24 volt DC systems
  • Works with any battery type
  • Includes DC shunt (part#84-2010-00)
  • One year warranty

Download Xantrex TM500A Specs. (.pdf)

Download Xantrex Link 10 & 20 Specs. (.pdf)

Bogart Engineering
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trimetric2020

 

Trimetric 2020 & PentaMetric System Meters

The TriMetric 2020 battery monitor is designed to assist in battery care, conservation and system maintenance of battery powered systems that use storage batteries with system voltage from 12-48 volts. It provides the user with information on battery "volts", "amps" and "amp-hours" and "battery percent full" information, based on measuring the amp-hours removed from the battery system. Reliability, accuracy and simplicity are key product objectives. The TriMetric requires an external shunt located near the batteries to measure "amps" and "amp-hours". The meter readout may be located hundreds of feet away from batteries and is usually connected to the shunt with a 4 wire cable.

 

PentaMetric

The new PentaMetric battery monitor system offers a lot more capability than the TriMetric monitor. It measures 1 or 2 battery systems with a common negative. With one battery system, battery current plus two charging sources/loads can be measured.

The Pentametric System consists of these components:
1. Data input unit to collect, process and log data (near batteries)
2. Optional readout unit (shown above) with 2 line LCD display and control buttons This connects to input unit with 4 wire cable up to 1000 feet away.
3. Optional computer interface with software to control and read out all data. Data may be accessed and controlled using either (or both) the optional LCD or the computer interface.

 

Basic measurements:

Volts (2 channels) 8-100 volts. For example you can monitor volts from two battery systems. Or battery voltage, plus the solar array voltage if you have a peak power point tracking controller.
Amps, (3 channels) ±.01-200 Amps (with 100A/100mV shunt).± 0.1-1000 Amps (with 500A/50mV shunt) Each of these requires a separate shunt. There are many different ways these can be used. For example one channel can be used to keep track of battery system energy content and the two remaining ones can be used for separate measurement of two charging sources, such as total solar or wind production. Or two battery systems can be separately monitored if they share a common negative connection--and in addition one charging source could be separately monitored.
Temperature -20 to +65 degrees C.

Secondary measurements derived from basic measurements:


Amp hour (3 channels) to ±83,000 Amp-hours
Cumulative (negative) battery amp hours. (2 channels) to -1,000,000 amp-hours
This measures accumulated amp hours (usually from a battery) only when the amps value is negative. Its purpose is to measure the total cumulative 'wear' of batteries during their lifetime.
Smoothed (time filtered) Amps, with time constants of 0.5, 2 or 8 minutes (3 channels)
±.01-200 Amps (100A/100mV shunt).± 0.1-1000 Amps (500A/50mV shunt) For example, this can be used to show a more accurage estimate of wind charging input when the wind source is varying in speed.
Smoothed (time filtered) Volts (2 channels) 0-100 Volts. The smoothed values for both Amps and Volts are used for triggering "alarm" and relay functions so very short term anomolies will be ignored.
Watts(2 channels) ±.01- 20,000 watts
Watt-hours(2 channels) ±21,000 kilowatt hours?
Battery %full (2 channels) 0-100%
Days since batteries charged (2 channels) .01-250 days
Days since batteries equalized (2 channels) .01-250 days
Data logging functions.
There are 3 types of data logging functions. With the computer interface all 3 types can be output to spreadsheet file.
1. "Periodically logged data" can record any or all of the following at regular intervals: once per day to up to once per minute:

  • Amp hours (3 channels)
  • Watt hours (2 channels)
  • Temperature max/min (1 channel)
  • Volts (2 channels)
  • Amps (1 channel)
  • Batt%Full (2 channels)
2. "Battery discharge voltage profile" data logs volts and amps every time charge level changes by 5% (or 10%) for 1 or 2 battery systems. This checks that battery capacity is still OK--.by observing that battery voltage does not decline excessively as charge level drops.
3. "Battery cycle efficiency data" documents system efficiency for up to 2 battery systems. For each 'charge/discharge' cycle it records: cycle length (hours), total amp hours charged, total amp hours discharged, computed average 'self discharge' current and charge (amp hour) efficiency.

Controls and alarms
Relay output
Control external relay to go on and off at specified voltage levels and/or %battery state of charge levels. "On" and "off" levels can be independently set.

Audible and visual alarms
Has audible or visual signal for 'Low voltage or low state of charge', 'High voltage', 'battery is charged', 'too many days since charged', and 'too many days since equalized'.