Product User Guide | 3
LF101A
PRODUCT USER GUIDE
Graph
When read with the
LF101A data logger, the
LWS outputs 266 mV
when dry. When the
sensor is totally wet, as
in a heavy rain, the signal
can range up to around
833 mV. Varying amounts of water on the surface of the
sensor case a sensor output proportional to the amount of
water on the sensor’s surface.
Alarm Settings
To change the settings for the alarm:
1. Select
Alarm Settings
from the
Device Menu
in the
MadgeTech Software. A window will appear allowing to
set the high and low alarms and warning alarms.
2. Press
Change
to edit the values.
3. Check
Enable Alarm Settings
to enable the feature
and check each high and low, warn and alarm box
to activate it. The values can be entered in the field
manually or by using the scroll bars.
4. Click
Save
to save the changes. To clear an active alarm
or warn, press the
Clear Alarm
or
Clear Warn
button.
5. To set an alarm delay, enter the duration of time into
the
Alarm Delay
box in which the readings can be
outside of the alarm parameters.
Set Password
To password protect the device so that others cannot
start, stop or reset the device;
1. In the
Connected Devices
panel, click the device
desired.
2. On the
Device
Tab, in the
Information
Group, click
Properties
. Or, right-click the device and select
Properties
in the context menu.
3. On the
General
Tab, click
Set Password
.
4. Enter and confirm the password in the box that
appears, then select
OK
.
Device Operation
Connecting and Starting the Data Logger
1. Once the software is installed and running, plug the
interface cable into the data logger.
2. Connect the USB end of the interface cable into an
open USB port on the computer.
3. The device will appear in the Connected Devices list,
highlight the desired data logger.
4. For most applications, select
Custom Start
from
the menu bar and choose the desired start method,
reading rate and other parameters appropriate for the
data logging application and click
Start
.
(
Quick Start
applies the most recent custom start options,
Batch
Start
is used for managing multiple loggers at once,
Real Time Start
stores the dataset as it records while
connected to the logger.)
5. The status of the device will change to
Running
,
Waiting to Start
or
Waiting to Manual Start
,
depending upon your start method.
6. Disconnect the data logger from the interface cable
and place it in the environment to measure.
Note:
The device will stop recording data when the end of memory
is reached or the device is stopped. At this point the device cannot be
restarted until it has been re-armed by the computer.
Downloading Data from a Data Logger
1. Connect the logger to the interface cable.
2. Highlight the data logger in the Connected Devices list.
Click
Stop
on the menu bar.
3. Once the data logger is stopped, with the logger
highlighted, click
Download
. You will be prompted to
name your report.
4. Downloading will offload and save all the recorded
data to the PC.
LED Indicators
Status:
Green LED blinks every 5 seconds
to indicate the device is logging.
Alarm:
Red LED blinks every 1 second to
indicate an alarm condition is set.
