ACR Systems TRH-1000, Reference Manual

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TRH Data Loggers
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Copyright © 2010 ACR Systems Inc. All Rights Reserved.
to each reading. All readings are then individually time and date stamped and processed by
an equation associated with each logger channel. The result is a collection of accurate
time-based data ready for detailed graphing and analysis.
1.1.5 How to Use TRH Loggers
Using your TRH-1000 data logger for most applications is a simple process. With proper
planning, setup and installation of your data logger, you can be assured that the information
you collect will be both correct and useful. The following provides general procedures for using
TRH-1000 data loggers. For additional and specific information on these steps, refer to the
chapter in this manual.
Planning
Proper planning is the key to successful data logging. Time spent in this stage will help you
save time and frustration later. To help you plan, answer these questions:
·
What exactly do I want to measure?
·
Where is the best place to measure?
·
How long do I want to monitor for?
·
Should other variables be monitored simultaneously?
Setup
To set up your TRH-1000 data logger you must first have TrendReader software installed and
running on your computer. You can then configure your logger with various options by talking
to it via the interface cable.
Set Sample Rate
Always confirm the sample rate (how often the logger saves readings) to make sure it will be
acceptable for your application. You can alter the frequency at which your TRH-1000 logger
records readings by changing the sample rate. You can choose rates from 8 seconds to 34
minutes. The sample rate chosen will apply to all the active channels on the logger.
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?
Clear Memory
Before starting a logging session, clear the logger's memory. This will help to keep the
collected files smaller as well as decrease the time needed to backup the logger later. Note
that clearing the memory is automatic if you save or apply the setup changes (for example,
assign different equations, change sample rate, etc.).
Test
You can directly read the values that your TRH-1000 data logger is sensing using the Realtime
capability of TrendReader software. This test gives you the opportunity to check your logger