LISST-Holo2
User’s Guide
31
5
LISST-Holo2 Field Deployment
5.1 Introduction
The LISST-Holo2 has many features that make it easy to deploy in the field. Start
and Stop conditions can be programmed into the instrument in advance. Once the
instrument is turned on it will wait for the Start Condition to occur before capturing
holograms. It will continue to capture holograms at the programmed rate until the
stop condition is reached.
The holograms are stored on solid state drive inside the LISST-Holo2, for later
transfer over Ethernet.
Up to four different sampling programs can be pre-programmed into the LISST-
Holo2.
The LISST-Holo2 contains a rechargeable 200 watt-hour battery pack, capable of
powering the LISST-Holo2 for up to 20 hours of continuous high speed sampling,
or longer durations using burst mode or slower sampling speeds.
The sections below describe in detail how to configure, start, and stop the data
collection as well as how to offload hologram from the internal drive.
5.2 Charging Internal Batteries
The LISST-Holo2 contains a rechargeable NiMH battery pack. We highly
recommend fully charging the batteries before deployment and before long term
storage.
Battery charger
The LISST-Holo2 is supplied with a battery charger that connects to the 6-pin
connector on the LISST-Holo2 endcap.
Use only the battery charger supplied
by Sequoia Scientific.
The endcap of the LISST-Holo2 has a vent that must be open for the batteries to
charge. The vent is the white plastic tab on the LISST-Holo2 endcap. Unscrew the
vent until the red O-ring is clearly visible, as shown on the left. Do not open the
vent past the point where it turns freely. Opening it too far can damage it.
Opening the vent prevents the possibility of pressure build-up inside the housing, in
case a charging fault causes the batteries to emit gas. To ensure this safety feature
is effective, the LISST-Holo2 charges only when the vent is open. Opening the vent
also prevents the LISST-Holo2 from using power from the batteries. To operate the
LISST-Holo2 while charging the battery, plug in the external power cable to the 5-
pin connector and connect the LISST-Holo2 to its power supply.
IMPORTANT: SUBMERGING THE INSTRUMENT
WITH THE VENT OPEN WILL CAUSE IT TO
FLOOD AND BE DESTROYED.
•
Only open the vent when charging, and in a dry environment.
•
Close the vent immediately after battery charging is completed.
To charge the battery, plug the 6-pin connector from the battery charger into the 6-
pin connector on the LISST-Holo2 endcap.
The battery charger has a red spring
clip attached to it. Clip this to the vent cover, as shown at left, as a reminder
to close the vent when disconnecting the charger.
The Battery Charger has a red-green LED that indicates the charging status.
LED Color and Status
Charging Mode
Red and green mixed (orange)
Battery Not Connected
Red and green mixed (orange)
Battery initialization & analysis
Red
Fast Charge
Green with intermittent red flash
Top-off Charge
Green
Trickle Charge
Alternating red and green
Error
Open vent
Red clip
—a reminder to close the vent
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