User manual

2004 Stevens Water Monitoring Systems Inc. All Rights Reserved.
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2.6 External Power Jack
The Shark comes with an external power jack (see Figure 1). An external power jack
connector/cable is included and should be connected to a 6-15 Vdc power source.
Current is regulated internally to The Shark, so simply connect the leads directly to a DC
source (I.E. a battery). The black with white-striped lead connects to the positive (+) DC
terminal and the solid black lead attaches to the negative (-) DC terminal.
2.7 Internal Battery
The Shark’s design contains an internal 200mAH lithium ion battery. This battery allows
for use of The Shark with no external power source for limited periods of time.
Typical internal battery-only uses may include (but are not limited to):
o Setup of The Shark before deployment
o Short -term operations (See Section 2.7.1).
o Quick re-setup of The Shark after deployment.
o Use in the Master operating role for quick data collection
2.7.1 Battery Use Duration
The following table describes the expected internal battery life under different uses.
Expected Battery Life
Uses Current Draw (mA)* Battery Life (hours)
Slave Mode < 5 40
Not
Bluetooth
®
Connected
Master Mode < 4 50
Slave Mode ~ 40 5
Master Mode ~35 5.7
Bluetooth
®
Connected
Continuous Data Flow ~55 3.6
*assumes external power LED is disabled – i.e. DIP switch 3 is in the off position.
Table 2: Expected Internal Battery Life
2.7.2 Recharging the Battery
The Shark has an internal battery charge regulator. To recharge the internal battery,
simply plug in an external DC power source. The battery will reach peak charge capacity
in approximately 4 hours with DIP switch 1 in the “OFF” position. If DIP switch 1 is in
the “ON” position, with external power applied, then recharging the internal battery will
take longer, depending on how The Shark is being used.