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Temperature
and Humidity Measurments
The rugged IQ-TRH
and IQ-TRH-40 data loggers are versatile devices designed for
remote, battery-operated monitoring. Both units, shipped with a battery
that lasts 10 years under normal circumstances, measure relative humidity
as well as ambient temperature and save readings to its internal,
nonvolatile memory.

The IQ-TRH and
IQ-TRH-40 hold up to 31,920 and 64,680 samples, respectively, when
logging a single relative humidity (RH) channel. Typically, loggers
are connected to the PC only for initial set up, testing, and uploading
data. While connected, data is displayed in real time and stored in
a loggerıs nonvolatile memory. Data sampling concludes by pressing
the logger button or through a program that stops gathering information
when its memory is full. If loggers are not programmed to stop on
a full memory, theyıll continue to acquire samples and overwrite old
data.
The data loggers
have three start modes: Push Button, User-Programmed Delay, or Point
Capture Start. The front panel LED confirms start status initiation.
When a recording session is complete, users reconnect the loggers
to a PC and download data directly to a Microsoft Excel worksheet.
These data loggers introduce a flexible, lightweight device for engineers
or scientists who need to collect data from remote areas. With a 64,680
sample memory, a data logger can sample relative humidity once per
minute for 45 days, or once every 15 min. for over 22 months.
The IQ-TRH is
priced at $139, and the IQ-TRH-40 costs $169.
Measurement
Computing
(508) 946-5100
Fax: (508) 946-9500
www.measurementcomputing.com
06-01
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Posted with permission.
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