The Power To Choose
The POWERGUARD™ HD charger series is HAWKER's new ferroresonant
The POWERGUARD™ HD charger series consists of single-phase
and three-phase chargers for every charging need. POWERGUARD™
HD features stackable drip-resistant cabinets and are designed to
be convection cooled in ambients up to 40°C (104°F).
Hawker offers two different models in the POWERGUARD™ ferroresonant
line, the POWERGUARD™ HD (for heavy duty applications) and
the POWERGUARD™ LD (for light duty applications). Let's take
a closer look at the two models.
POWERGUARD™ HD is designed to return a 100% discharged
battery to full charge in eight hours or less; everything from a
6, 12, or 18 cell battery all the way up to a 24 or even a 40 cell
battery. With an 18% start rate and 4 to 5% finish rate, the POWERGUARD™
HD chargers are built to return 108% to 112% of your battery's rated
capacity in an eight-hour period.
The POWERGUARD™ HD charger is available with two different
controls, the PRO and the PREMIUM. You can select the control that
best meets your charging needs.
The PRO Control offers:
• Auto Start/Stop - Auto start/stop enables
the charger to start/stop the charge cycle automatically.
• Dv/dt Termination - Precise termination
that tracks rates of change of battery voltage (dv/dt), or you can
select time-voltage (t/v) termination.
• Manual Equalize - Provides user control
to start or stop an equalize charger.
• Easy to read LED Indicators
POWERGUARD™ HD & LD Control Your Battery Fleet
POWERGUARD' HD & LD guards your battery fleet against
being over or under charged. See the POWERGUARD™ difference
• In the case of an AC power failure, the charger resumes
charging exactly where it stopped charging
• Backup timer and second, separate timer initiate a
countdown when the charge cycle begins. Should the primary
timer fall. the backup timer shuts off the charger 15 hours
after it starts.
• Solid-state electronics perform self-diagnostics on
the charger and shut it down in case of charger-related problems.