ACR Electronics OWL 100, Справочное руководство, Страница: 10 / 55

OWL Data Loggers
3
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Setup
To setup your OWL data logger you must first have TrendReader Software installed and
running on your computer. You can then configure your logger with various software setup
options.
Set Sample Rate
Always confirm the sample rate (how often the logger takes readings) to make sure it will be
acceptable for your application. You can alter the frequency at which your OWL Data Logger
records readings by changing the sample rate. You can choose rates from between 8
seconds and 12 hours in 4 second increments. In Fast Read mode, you can select intervals
between 0.2 and 10 seconds.
To help determine which sample rate you should choose, answer these questions:
·
How long do I need to record data?
·
How much time will elapse between when I retrieve the logger and download the data to
my computer (for example, the trip back to the office)?
·
How often do readings need to be taken?
Making External Connections
If you are using your OWL Data Logger to monitor external modules, sensors, or circuitry,
make sure the connections are secure.
Clear Memory
Before sending your logger out into the field to collect data, clear the logger's memory. This
will help keep the collected files smaller as well as decrease the time needed to backup the
logger later. Note that clearing your OWL's memory is automatic if you make setup changes
(for example, assign different equations, change sample rates, etc.)
Test
You can directly read the values that your OWL data logger is sensing using the Realtime
capability of TrendReader software. This test gives you the opportunity to check your logger
setup and make any necessary changes before starting the logging session.
Label
OWLs can be setup with a description that can be put into the logger's memory. It is
recommended that you use this feature in order to know what each graph refers to.
1.1.5 Installation
Mounting
Use the magnetic backing to conveniently mount your logger on metal surfaces like ductwork
or electrical control cabinets. If you're concerned about theft, lock your logger to a permanent
fixture using the locking tab or take advantage of its small size and hide it completely out of
view. Because OWL loggers are so light, you can use special mounting methods like Velcro®
fasteners to secure them to almost any surface. Make sure your logger's mounting method
will last the full length of your data logging session.