Battery Monitoring Systems
PowerShield Data Center Solutions
Permanent monitoring solution designed for stand-by batteries
Complete package including hardware & software
Designed to allow IEEE/IEC best practice
Fast, accurate, safe & smart
Visibility of your battery assets
Be in control of your batteries.
In the Battery Room
Modular layout for safety, efficiency, scalability
- Sentinel controller + m-Senzor battery sensors
Up to 1280 blocks / 16 strings per hardware system
Stand-alone system operation with on-board memory
 Can operate without PC or external comms
UL, CUL, CE, C-Tick, FCC, KCC certified
Fast & tidy installation
Battery & UPS brand neutral
 Maintain manufacturer
flexibility & capability
for future expansion
In the Battery Room
All parameters sampled continuously & automatically
 Rapid identification of catastrophic failures
Automatic data logging
 Allows historic & predictive trending over battery lifetime
Automatic data logging of battery discharge
 Live assessment of performance
 Capacity analysis
UPS self-test & intermittent charging compatibility
 Make best use of UPS functionality
All events and alarms time & date stamped
At the Battery
Individual block voltage, sampled simultaneously every 4 seconds
 True real-time visibility
Individual block impedance, sampled daily
 Sampled only in Float for best comparison & life trending
 Internal high precision reference for self-calibration
Individual block temperature option
 Measured at negative terminal as per IEEE
recommendations
 Accurate & block specific thermal runaway
detection
At the Battery
750VDC optical isolation at battery
 Increased safety of personnel & facility
 Install flexibility & efficiency – consolidate different block & string
voltages [UPS, 48V, genset, emergency lighting]
 Factory terminated cable sets with no fusing required
Intelligence at the battery
 Ripple & noise rejection
 Self-protection
 Bi-colour LED for fast identification
No more manual battery testing.
Raising the Alarm
Alarms for block voltage, impedance & temperature [thermal
runaway]; string voltage & current; ambient temperature
All alarm settings user-editable, but with initial defaults offered
Self-learnt automatic baseline for impedance
All alarm settings are battery & application specific
Detailed, specific alarm information – to individual block level
System intelligence applies appropriate limit set for battery state
– Float/Charge/Discharge/Idle
Notification of change of string state
Alarms for internal system diagnostics
In the Control Room
Alarm & data options for data center integration:
Ethernet to PowerShield Link software
 Allows review at all levels – control room, facility managers,
service providers, equipment suppliers.
 Both life trend and discharge event data presented
 Battery data stays under your control & ownership
ModbusRTU/TCP or SNMP to local building management system
 Integrate with existing facility systems
 Allows implementation of multiple alarm sets
Dry contacts for additional alarm outputs or actions
Dedicated serial port for local service & diagnostics
High visibility & ownership of your battery assets.
Accessing Your Battery Data
PowerShield Link Software
New Dashboard screen for Link – see all the batteries in your facility at a
single screen.
Fast overview
Onscreen alarm pop-ups
Single click for site report
Simple colour coded buttons
Drill down to battery specific
detail & alarms
Multi-seat, multi-user
PowerShield Link Software
Permanent connection to multiple sites – unlimited total number of
batteries
Real time battery status, including discharge
Remote access via LAN
Alarm & activity log
Email alarm alerts
Battery database for life trending
Graphing & analysis tools
Automated data management
Battery management is more than just waiting for alarms
PowerShield Link Software
Comprehensive user report set
 Preformatted PDF or Raw CSV data
Facility summary
Discharge – individual events in detail,
activity summary
Trending – Impedance change, end-of-life,
charge voltage, temperature
Alarm history, fault tracking, service log
 Warranty claim support documentation
 Reports suitable for management & service teams
Independent remote Reporting Service available
PowerShield Users
Equinix – Hong Kong, Singapore, Australia, New Zealand
HP – Austin TX, Australia
IBM – Australia, New Zealand, UK, South Africa, France
Bank of America – UK, Hong Kong, Singapore, Australia
Microsoft - Ireland
Huawei - China
Bloomberg - global
Barclays Bank – UK
"PowerShield gives us the confidence to get on with running our business with
the peace of mind that, should there be a power outage, our backup battery is
in A1 condition." - Television New Zealand
PowerShield Limited
Developing battery monitoring solutions since 1996
In-house hardware & software teams
Strong R&D team with continuous product development and battery
research
Independent of battery & UPS suppliers
CTO is working group member of the IEEE Stationary Battery
Committee. Current Vice Chair of IEEE 1491 Guide for Selection and
Use of Battery Monitoring Equipment in Stationary Applications.
PowerShield Limited
Global reach, local focus
 PowerShield technical & reseller support in territory – USA,
Singapore, UK
 Stock holdings – USA, Singapore, UK
 Factory trained installation partners globally
 support@ - direct access to factory support if required
Notes: What We Measure & Why
Individual block voltage – ensure correct charge and performance
under load
Individual block impedance – impedance change gives a solid life trend
and end of life assessment.
Ambient temperature at the cabinet/rack – high temperatures kill
batteries. A 10°C increase gives a 50% decrease in life expectancy
String current – allows detection of unbalanced strings, and provides
rapid understanding of battery activity
String voltage – confirmation of UPS operation & compliance with
battery specification
Individual block temperature [optional] – better knowledge of
temperature gradients in cabinets; pre-empt thermal runaway
Looking After Your Batteries
A 10°C increase gives a 50% decrease in life expectancy
Looking After Your Batteries
Incorrect float voltage significantly affects life expectancy