Data Harvest EASYSENSE VISION User Manual page 12

EASYSENSE VISION User guide
Recharging batteries
Connect VISION to its mains power supply adapter and leave to charge overnight.
Notes:

Normally VISION will fully charge overnight but may take longer if its battery is totally flat.

To ensure the fastest charging time unplug all sensors and peripherals (keyboards, mice, projectors, etc.).

To divert all power to recharging VISION's batteries, power VISION down (press and hold down the power
button for about 4 seconds until the screen goes blank).
Batteries
VISION is fitted with a rechargeable lithium ion battery pack.
Battery life will depend on the sensors connected. For example a fully charged battery in good
condition can power VISION in EasyLog mode with a Light level sensor connected for up to 14 days.
If a high current sensor such as the Rotary Motion sensor is used then this will be reduced to less
than 2 days.
Even when turned off, VISION will use a small amount of current, and the battery will slowly discharge.
Lithium ion batteries are 'memory-free' and prefer a partial rather than a full discharge. Constant partial
discharges with frequent recharges will not cause any harm. Frequent full discharges should be
avoided whenever possible.
The speed at which a lithium ion battery will age is governed by both its storage temperature
(preferably less than 40ºC) and state-of-charge. Eventually the battery pack will no longer deliver the
stored energy and will need to be replaced. A fully charged battery that loses its charge quickly will
demonstrate the need for replacement. When this happens contact Data Harvest and request a battery
replacement pack for VISION – Product No. 2036. (Full instructions on how to replace the battery will
be supplied with the replacement battery).
Lithium batteries operate best at near room temperature (between 10 and 30˚C) but can be used at
any temperature between 5 to 50˚C. If VISION has been left in the cold, let it warm to near room
temperature before use.
Battery voltage
 Select System Settings from the
Settings menu.
 Battery Voltage will show an estimate of
VISION's current battery voltage level.
Memory Free
This value indicates the percentage of free memory available
for storing user data or setup files.
Deleting files
There are two methods of deleting saved files (to free more memory).
1. Select System Settings from the Settings menu. From the Memory Free section select Delete
Files. Select the appropriate data file (.ssl) or user setup file (.sss) from the list, and select Delete.
Tap on to close System Settings.
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Between 0
and 20%
Between 20 and 40%
Between 40 and 60%
Between 60 and 80%
Between 80 and 100%
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