User's Manual

US7,420,471; US8,169,335; US8,232,888; US5,939,986;
US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;
ZA2010/06816, ZA2010/09068 Patent Pending
2.1.1 Inoperability Warning
When a PAD battery voltage drops to approximately 3.5 Vdc or below while connected to a
PAD, the PAD will signal a low battery condition. This alert is two rapid beeps of the sounder
every 1.6 seconds. When the PAD determines the battery to have low voltage, the PAD will
cease to give zone warnings and will give only a low battery alert. CAUTION: WHEN A LOW
BATTERY IS SIGNALED, THAT PAD SHOULD NOT BE USED UNTIL ITS BATTERY IS RECHARGED.
2.2 Charging
The 3.7V Li-ion/Polymer is charged from a Wall Charger Power Adapter. Chargers are designed
to operate with input voltage from 100 to 240 Vac, 50/60 Hz. Charger connection to the PAD is
via a magnetic connector. The charger provides an output current of 1 A at a voltage of 5 Vdc.
Charging current control is performed by circuitry on the PAD board. An LED light on the PAD
housing blinks “blue” when the battery is charging and changes to solid “blue” when full charge
is achieved. When the charger is disconnected, the sounder on the PAD will activate for approx.
2 seconds to indicate it is in proper working order.
The PAD is to be charged daily and connected to the charger over weekends and holidays.
2.3 Alerts
The Personal Alarm Device is to be worn on the chest of the pedestrian. The PAD has an LED
visual indicator and an 85 dBa minimum sounder designed to alert the user. The LED also blinks
every 15 seconds to alert the user that the PAD is in working order. If the battery voltage in the
PAD drops to approximately 3.5 Vdc the PAD will signal a low battery condition with two rapid
beeps every 1.6 seconds. NOTE: THE PAD WILL CEASE TO GIVE ZONE WARNINGS WHILE
SENDING THE LOW BATTERY ALERT.
2.4 Maintenance
The Lithium Ion Battery in the Personal Alarm Device has a finite life and eventually will need
replacement. Battery life is based on the number of times recharged. There are no published
data about the exact number of charges the battery can undergo before its life is over, but
literature suggests it’s at least 300 charges. Batteries in the HIT-NOT® PAD are designed to be
replaced by the user. Only use an approved, protected Lithium Ion replacement battery.
Contact HIT-NOT for the approved replacement battery list.
A daily check to verify the PAD is functioning visually and audibly is advised. Any PAD can be
shown to be working properly by an approaching truck with a generator and verify that a
warning is given at the expected distance.
2.5 Adjustments
Factory settings of the Personal Alarm Device are expected to be stable and change very little
with time. Adjustment capability of the PAD by the user is not available for field use.
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