20 Access Sensor Technologies UPAS User Guide
Charging the UPAS Internal Battery
Use a USB cable (USB type A to micro-USB) to connect the UPAS to a computer
or standard USB charger. After charging, and before powering it on, remove the
UPAS from the charger/computer (otherwise the UPAS keeps its Bluetooth
communication inactive). A USB charger and cable capable of providing at least
2 Amps charges a fully depleted battery in less than four hours; a charger capable
of less than 2 Amps takes longer to charge the batteries. The UPAS manages the
battery charging rate, including trickle and maintenance charging. It can be
connected to a charger whenever not in use.
Before using the UPAS for the first time, fully charge the internal Li Ion battery.
Charging the Battery when UPAS powered ON and Idle
At power-on, the UPAS status light indicates the relative level of battery charge.
If already powered on, indicates the UPAS is charging.
Charging the Battery while UPAS Actively Sampling
The UPAS status light indicates the status of the UPAS charging:
Table 3 UPAS Status Light: UPAS ON and Idle
UPAS Status Indicator Definition
Battery State of Charge
(SOC)
1
,
2
Indication
(UPAS flashes one of these
codes)
1 If the UPAS is plugged into a computer or charger before it is powered on, the LED displays a repeating
charge-status light sequence and Bluetooth will not be available (connection to the mobile device App
is not possible) until the UPAS is unplugged.
2 If the UPAS is already powered-on when connected to a computer or charger does not provide the
relative charge indicators. The UPAS proceeds through its normal power-on sequence and Bluetooth
connection is possible.
Blue (cyan) light flashes once SOC is < 25%
Blue (cyan) light flashes twice SOC is 25 to 50%
Blue (cyan) light flashes 3 times SOC is 50 to 75%
Blue (cyan) light flashes 4 times SOC is 75 to 96%
Blue (cyan) light flashes 4 times
then Green flashes once
SOC is > 96%
Table 4 UPAS Status Light: UPAS ON and Sampling
UPAS Status Indicator Definition
Blue (cyan) light on
UPAS plugged in and charging the internal
battery.
Orange light flashes
repeatedly
UPAS battery low, recharge immediately.
To Next Page
Loading...