General HT08 Bedienungsanleitung
USB
RH/TEMPERATURE/GPP
MINI DATA LOGGER
USER’S MANUAL
HT08
Please read this manual carefully and thoroughly before using this product.
HT08 - Manual-RR-FINAL_061914_awb
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 4
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 – 5
Safety Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
What’s in the Blister Pack. . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 – 12
Installing/Replacing the Battery . . . . . . . . . . . . . . . . . 7
Install Software and Drivers. . . . . . . . . . . . . . . . . 7 – 9
Configure the Unit . . . . . . . . . . . . . . . . . . . . . . . 9 – 12
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . 13 – 16
Deploy the Unit . . . . . . . . . . . . . . . . . . . . . . . . 13 – 14
Stop Logging and Import Logs . . . . . . . . . . . . . . . . . 14
Viewing, Printing and Exporting Data Logs . . . . 14 – 16
Other Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Maintenance Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Return for Repair Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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INTRODUCTION
Thank you for purchasing General Tools & Instruments’ HT 08
USB RH/Temperature/GPP Mini
Data Logger. Please read
this user’s manual carefully and thoroughly before using the
instrument.
The HT 08 is a low-cost, compact, battery-powered thermo-
hygrometer capable of unattended logging (recording) of the
ambient temperature and relative humidity (RH) of an
environment for days, weeks or months. In addition, software
included with the product can also calculate and display
absolute humidity levels in units of grains per pound (GPP) or
g/kg. Also called mixing ratio, GPP is a more useful moisture
metric than RH to water damage remediators. Using RH
alone, a remediator might unknowingly introduce moist air—
with a low RH but a high GPP—during a job’s drying phase.
Data logging can be started or stopped by pushing a button
on the unit, eliminating the need to bring a laptop to the job
site. After a data log has been captured and stored, it can be
uploaded as a .txt file to any PC running the Windows®7 or
Windows®XP operating system after plugging the HT 08into
one of the computer’s USB ports. The HT08’s internal flash
memory is large enough to store 16,300 pairs of RH and
temperature readings.
Included with the product—which is slightly larger than a
thumb drive—is a mini-disc with the drivers needed to
interface the unit to the computer, as well as software that
can display a data log file as a table or graph and/or export it
to Microsoft Excel. Exporting to Excel is recommended for
sophisticated trending and analysis of humidity and
temperature data and easy detection of unexpected
excursions.
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Windows®7 and Windows®XP are registered trademarks of Microsoft Corporation.
Applications for the HT08
08
08
08
include:
•Water damage remediation—Because the HT is
designed to be deployed and left in place over the
duration of the job, it is always in equilibrium with the
environment.
•Process control—The HT enables, simplifies and cuts
the cost of environmental monitoring of office buildings,
greenhouses, food and equipment storage facilities,
wineries, freezers, shipping containers, HVAC/R
installations, computer rooms, labs, libraries, museums
and saunas.
•Electronics manufacturing—Alerts provided by the low-
humidity alarm function of the HT can mitigate the risk
of damaging high-voltage static discharges.
KEY FEATURES
•One button starts/stops data logging without a PC
•Plug-and-play USB 2.0 interface; no need for cables,
cradles or docks
•Large storage capacity: 16,300 pairs of RH and
temperature readings
•Two LEDs indicate device working status and
“memory full”
•Included software is used to set: Sampling time from
10 seconds to 12 hours; Hi/Lo alarm setpoints for
humidity and temperature; Temperature unit (°F or °C)
•Software also calculates and plots GPP and dew point and
wet bulb temperatures and displays data logs as time-
based graphs synchronized to your PC’s clock
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•One-click exporting of logs to Excel
•Long battery life (up to one year)
•Includes USB extension cable
•One-year warranty
SAFETY INSTRUCTION
Do not use the HT08 in the presence of flammable or
explosive gases.
WHAT’S IN THE BLISTER PACK
The HT08 comes in a blister pack that also contains
•One “1/2 AA” battery. Replacement batteries
(Part No. BA10) are available from General
(www.generaltools.com).
•A disc with software drivers for Windows7 and Windows
XP computers, the ELusb V1.21.2 program for capturing
data logs and displaying them as curves, and a PDF of
this user’s manual
•A USB extension cable
•A hard copy of this user’s manual (inside the fold-over
card)
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PRODUCT OVERVIEW
Fig. 1 shows the main components, controls, display and
connectors of the HT08. Familiarize yourself with their names
and functions before moving on to the Setup Instructions.
A. Temperature and humidity sensor window
B. Battery compartment (latch is on rear of unit)
C. Two-color (green and red) LEDs (indicate device logging
and configuration status and “memory full”)
D. USB plug
E. Protective cap
F. MODE button
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SETUP INSTRUCTIONS
INSTALLING/REPLACING THE BATTERY
The HT 08 uses a 3.6VDC “1/2 AA” Lithium-ion battery.
To open the battery compartment, use a paper clip or a
screwdriver with a fine point to push in the silver flange
showing through the small square hole in the rear of the unit
(left photo above). Push back the cover (middle photo),
remove the old battery (right photo) and insert a fresh battery
in the correct orientation. Then replace the cover, pushing it
forward until you feel and hear a click.
Whenever you change the battery, each of the two LEDs will
flash red once, and then green once.
Note: If the battery is removed from a unit before it has been
set up from software or while it is recording, the unit must be
reconfigured before it can be reactivated. If it is not
reconfigured, the unit will remain in standby mode.
INSTALL SOFTWARE AND DRIVERS
1. Place mini-disc in tray of CD/DVD drive, shiny side down.
Close tray.
2. When the AutoPlay window appears, click on “Open folder
to view files using Windows Explorer.”
3. Windows Explorer will indicate that there are two “Files
Currently on the Disc”. One is actually a folder containing
a PDF of the HT08
08
user’s manual (as well as PDFs of the
manuals for the HT20 and HT50_larger versions of the HT
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with LCDs). Copy the HT 08 manual to your computer’s hard
drive for permanent storage. The other file is a Windows
Installer Package (.msi file) named “ELusb V1.21.2.msi”.
Double-click its icon.
4. A window titled “Welcome to ELUsb Installation Wizard”
will appear. Click Next to continue.
5. Within the Software License Agreement window that
appears next, click the I agree (T) box.
6. The next three windows advise that the ELusb application
will be installed in your computer’s C:\Program Files folders
in a new subfolder named <ELusb>, and that shortcuts to
the program will be created on your desktop and Quick
Launch bar. If you want to install the software elsewhere,
click Browse and choose another location. Within each
window, after selecting either the default location or
another location, click Next(N) to continue.
7. When the “Preparing to Install” window detailing the
changes to made appears, click Install (I) to continue.
8. Before the installation begins, a User Account Control
window may appear and ask, “Do you want to allow
[ELusb V1.21.2.msi] to make changes to this computer?”
Click Yes to continue.
9. The ELUsb Setup Wizard will now install the program on
your computer. On the next window that appears, click the
Completed (F) box.
10. At the bottom of the Device Driver Installation Wizard that
appears next, click Next to continue.
11. The next window to appear is a Windows Security
window. Click on “Install this driver software anyway” to
continue.
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12. The next Device Driver Installation Wizard window will
advise you that an HT08
08
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08
08
/20/50 driver from General Tools
or Kecheng Laboratories was successfully installed and
that your device is now “Ready to use.” Click Finish to
continue.
CONFIGURE THE UNIT
Note that the software installation has added a icon to
your desktop. To facilitate access to the program, right-click
on the icon and pin it to both your Start button and the Quick
Start area at the left of your taskbar. You can now eject the
installation mini-disc and store it with your other important
software.
Plug the HT into an available USB port of your computer. If
your computer is a laptop and the only available USB jack
does not have enough vertical clearance to accommodate
the HT08
T08
T08
without mechanically stressing its USB plug, do
not plug the HT directly into the jack. You do not want
the plug of the HT to support any of the weight of the
laptop. If that is the case, plug the HT into the jack of the
included USB extension cable and insert the plug of the
extension cable into the computer’s USB jack.
The first time you plug the HT into your computer, your
system tray will notify you that the computer is “Installing
Device Driver Software”. When the notification disappears,
open the ELusb program by selecting it via your Start button,
clicking on its icon on your taskbar, or double-clicking its
desktop icon.
If the software has installed correctly and you have plugged
the HT into a working USB port of your computer, the
following screen should appear on your computer’s display.
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Note: If you have already used your HT 08 to log data
and it is still in recording mode, plugging the unit in
will cause the following window to appear.
Click Yes to stop recording and import all data recorded to
that point in time. Click No to continue to Setup without
importing recorded data (meaning it will be lost). Click
Cancel to go back and unplug the unit from the USB port.
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Fig. 2. The three options made available by
plugging the HT08 into a USB port
Device HT08 is connected!
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