MONITORING - BTECH
Why Battery Monitoring?
The battery is weakest link of any UPS or DC Power System
because they degrade in time. The traditional method for detection
of weak cells is testing the batteries during a preventative
maintenance visit with specialized test equipment. This is
a good first step to catching problems that could put your
critical load at risk. However, batteries have proven to fail
between PM visits even when scheduled quarterly leaving the
end-user with a false sense of security. The only solution
is to continuously monitor and test your batteries with a
permanently installed system that runs 24 hours a day, 365
days a year.
With the BTECH Battery Monitoring System, current and
temperatures are being measured thousands of times a day.
Voltages are measured up to 24 times a day on each cell, that
can mean up to 3/4 of a million measurements. Internal Resistance
on each cell is measured every 12 or 24 hours, ensuring no
event just slips between the testing cracks. No other system
can measure your batteries' important parameters, daily.
BTECH Battery Monitoring provides immediate warnings of deterioration and
imminent failure of batteries, identifies any individual battery
that exhibits problems, and reduces the possibility of damage
to the entire battery string.
Why BTECH Battery Monitoring?
The best way to test a battery is to use it. But we don't
expect you to be in your battery room the day the power fails
in your data center. That's why BTECH does the job for
you. BTECH uses Pulsed DC Impedance technology and does not
discharge the batteries or create a chemical reaction during
the measurement cycle. You can
later compare this information with other cells on the system
and make your own maintenance plans accordingly.
BTECH Battery Monitoring can also reduce the frequency of your technician
visits thereby paying for itself. It would be cost prohibitive
to carry out those crucial battery tests once or twice a week.
BTECH can scan all battery parameters more than once per
day to ensure nothing is missed. In addition, this monitoring
system allows battery replacement to be based on the battery’s
condition, not simply how long it’s been in use, helping
to avoid premature and unnecessary replacement.
All information collected by BTECH is gathered at the S5
System controller and communicated to the BVM Software
Package. The BVM uses built-in graphing and report
generation that provides analysis tools to provide the most
effective and comprehensive monitoring package in the
- Measures Voltage on each cell, either 6 or 24 times
per day. The software records data for graphical presentation
during THAT day as well as average data for historical
analysis or trending. Also compares this data continuously
with high and low alarm settings for alarm activation.
- Measures Internal Resistance on each cell, either
2 or 4 times per day. The software records data for
graphical presentation during THAT day as well as
average data for historical analysis or trending.
Also compares this data continuously with high and
low alarm settings for alarm activation.
- Measures the temperature of either the battery room
ambient or a 'pilot' cell. Records this figure for
graphing as well as comparison with high and low alarm
setting for alarm activation.
- Measures discharge current from a battery string
and compares the data with a discharge alarm limit
set in software. In the event of a discharge, rapidly
records all cell voltage data as the battery discharges
for later identification of weak cells under load.
- Supplied with dedicated computer running Windows
98/ME/2000/XP software and BTECH proprietary application
for reporting, recording and data analysis.
- The system is modular, so if your needs change,
BTECH can be reconfigured or expanded.
- Low voltage DC components. Measurement components
never see greater than 48v nominal DC so battery connections
are all low voltage. Electrical isolation is achieved
by plastic fiber optic cable.
BTECH software is an application written to run
on Windows XP™ machines supplied as part of a
BTECH Battery Monitoring System. It has been carefully
designed to be be both easy to use and intuitive, providing
just the right amount of information for users who are
too busy to read overwhelming reports.
- Informative entry screen, showing all
cells on a battery or multiple batteries. "What
you need to know"
- Automatic battery testing under software
- All alarm information readily visible
on entry screen.
- Capability to drill down into battery
data, easily from the entry screen via familiar Windows
- Reports are all visual via graphing
Reports available include:
- Today's Voltage & Ohmic Value cell
data, for any single cell.
- String data, showing the last reading
for the entire battery string.
- Cell history showing a minimum of 120
days averaged data (if 120 days data is available)
for that cell. Other cells may be added for comparison.
- Battery history, showing history for
a particular year of service.
- Discharge data, graphing the discharge
characteristics of the entire battery under discharge
following such an event.
- Programmable alarm limits for Voltage,
Ohmic Value, Current, and Temperature.