LISST-200X User’s Manual LISST-200X Introduction and Tutorial Page 29
removed until the battery is ready to be used. The batteries should
also be stored in a fully charged state.
The LISST-200X can be pre-programmed with the desired sampling
program such as start and stop conditions and sampling rates. These
settings will remain in non-volatile memory until power is applied.
Therefore it is possible to prepare the instrument for sampling before
shipping it out. It is even possible to program the instrument to
automatically start upon power up. This is described in the next step.
Step 23:
Configuring
AutoStart
The LISST-200X can be configured to start running the sampling
program upon power up. In some situations this ability can be quite
helpful as you do not need to connect the instrument to the PC to start
the sampling. The instrument can be preconfigured with the desired
settings and the wait for the battery to be plugged in or external power
from the CTD to be present before looking for the Start Condition.
To configure the LISST-200X to start its sampling program upon power
up use the AS command (short for Auto Start). The AS command can
be issued when the 200X> prompt is displayed in the Terminal
Window. When AutoStart is enabled a message will be displayed as
part of the Status command or the Query instrument results.
When the LISST-200X is powered up a message will be displayed to
the Terminal window (or via the RS232 interface) that will prompt the
user that the instrument will auto start in 5 seconds. Pressing the stop
key or sending two CTRL-C characters will stop the instrument from
starting and return to the 200X> prompt.
Step 24:
Connecting to
External
Sensors or
Instruments
The LISST-200X had the ability to connect to external sensors and
instruments such as other dataloggers or CTDs through the 6-pin
Auxiliary connector on the endcap. The details of using the Auxiliary
connector can be found in the Step-by-Step instructions on page 69.
In short, the Auxiliary connector can be configured in one of three
ways: 1) Analog and Digital inputs, 2) Dual Analog Inputs, or 3) Dual
Analog Outputs. When using the Analog or Digital inputs it is possible
to provide power to an external sensor. By default this power output is
switched off. It will need to be enabled before power will be available.
You can also configure the warmup time required for the sensor after
power is applied before sampling will begin.
The Analog Output configuration sends out two analog voltages, Mean
Size and Total Concentration. This summary information is updated
each time data for the full size distributions is recorded. When using
the Analog Output configuration power can be received through the
Auxiliary connector. The wiring of the connector is designed to match
the SeaBird CTD Auxiliary Input connector simplifying the connection.
To Next Page
Loading...
Need help?
General
