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TH1
USB Temperature/Humidity Logger
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Description |
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The
DLP-TH1 is a USB-based digital temperature and humidity sensor.
Software provided with the DLP-TH1 sensor displays temperature,
humidity, and dew-point data in both Celsius and Fahrenheit, plots
graphically to the screen, and logs to a data file on the hard drive.
The software will also send an email to user-specified recipients if
the temperature or humidity exceeds specified setpoints.
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Product |
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Drivers,
Software
and Manual Download >> |
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Temperature
and Humidity |
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The
DLP-TH1 is a USB-based digital temperature and humidity sensor.
Software provided with the DLP-TH1 sensor displays temperature,
humidity, and dew-point data in both Fahrenheit and Celsius, plots
graphically to the screen, and logs to a data file on the hard drive.
The software will also send an email to user-specified recipients if
the temperature or humidity exceeds specified setpoints.
The
DLP-TH1 sensor uses a fully calibrated capacitive polymer-sensing
element for relative humidity and a bandgap temperature sensor
providing excellent long-term stability. Calibration coefficients for
the sensors are permanently stored in digital memory within the
DLP-TH1 module so that the module is fully interchangeable with any
other DLP-TH1 module.
The
DLP-TH1 is shipped with Windows 98/ME/2000/XP compatible software
and USB drivers. Additionally, the most recent versions of the
application software and USB drivers for the DLP-TH1 are available as
a free download from www.dlpdesign.com/usb/th1.html.
No
external power source is required--all power (30mA max @ 5V) is
taken from the USB port via the provided 2 m USB cable. Typical
applications include Server/Host room monitoring, hydroponics and
greenhouse monitoring and museum display cabinet monitoring. |
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Software |
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The
DLP-TH1 application software is compatible with 98/ME/2000/XP
versions of theWindows operating system.
Since
multiple DLP-TH1 units can be connected to the PC at the same time,
when the program is run, the first required step is to select the
sensor that is to be monitored.
When
the Open button is clicked, a selection window will appear that
presents a list of all sensors connected to the PC. To select a
specific sensor, simply click on the description string for the
desired sensor and then click on OK.
Each
sensor can be given a specific name (Computer Room, Baby Room, etc.)
using the Rename function. The sensor’s name is written to the
non-volatile memory in the sensor itself such that the name stays
with the sensor should it be moved to a different PC. Click on Rename
and enter a new name for the sensor.
Note
that the new name will not take effect until the sensor is
disconnected and reconnected to the PC as the description strings for
a USB device are only read at power-up. |
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To
enable charting, simply click on the check box for Charting.
Different time and temperature scales can be selected to suit user
needs. Additionally, the chart can be resized with the mouse to show
more detailed time or temperature resolution. |
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To
enable logging, simply click on the check-box for Logging. A dialog
window will appear allowing the selection of a file name for the log
file as shown below. A filename is automatically created based on the
sensor’s name, date, and time. A different filename can be
entered if desired. The log file is a simple ASCII text file that can
be imported in to Excel for further analysis.
To
enable email notification of the temperature or humidity alarms,
simply click on the check box for Charting in the main window. The
following setup window will appear:
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Valid
email addresses and server data must be used. The Send test email
button will help to verify that the email addresses and server name
entered are working as expected. The View Log button will allow you
to review the responses from the email service provider as each email
is sent.
Only
one email will be sent if a temperature or humidity setpoint is
exceeded. The ability to send an email will be reactivated if the
temperature of humidity falls below the setpoint by more than 1
degree or 1% RH.
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Specifications |
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Temperature
Humidity
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Range
0-100%RH
- Accuracy
±3%RH (20 to 80%RH), ±5%RH (0 to 100%RH)
- Resolution
0.03%RH
- Repeatability
±0.1%RH
- Response
Time 4 Sec.
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Accessories |
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USB
Active
Extender
A
USB cable cannot be used reliably used where the distance is greater
than 5m. For distances greater than this, an active USB repeater is required
USB-EXT |
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USB
Active
Extender CAT5
Overcome
USB's 5m transmission limitation by using this extender along with
standard network cable. Can extend USB by up to 45m.
NOTE
- not supplied with RJ45 cable - just Master and Remote units.
USB-CAT5
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Phone
+44(0)115 925 8412 | Fax +44(0)115 925 9757 |