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4-1
PC Interface
4
Section 4 - PC Interface
The HHF1000 series comes with a Windows based user application. This
application runs on Windows XP, Vista, and Seven. It allows you to perform the
following functions:
• Monitor and display the air velocity and temperature in real time, including
line graph of the two channels.
• Display the air velocity and temperature in different Engineering units
• Change the upper and lower values for the two channels from auto, to manual.
or logarithmic scale.
• Change the chart time base from 1 minute to 10 minutes, and one hour.
• Save the air velocity and temperature data to a file.
• Print the air velocity and temperature graphs to a printer.
Operation
• Install the user application.
• Connect the USB cable provided between the HHF1000 and the PC. For
wireless version, make sure the radio is turned off.
• When the HHF1000 is connected to the PC for the first time, the PC recognizes
the unit and it looks for the USB drivers. The necessary drivers are on the
same CD.
The “Found new hardware wizard” program will open. Select “Install from the
specific location” option and select the program CD where the drivers are located.
You are now ready to run the application. When the application is run, it establishes
communication with the HHF1000 meter, and a “Go” button will show up on the
Main window. Clicking the “Go” button will start the data logging session.
If the application can not establish communication, it will show an error message
box, and the “Find” button will flash. Please check for the following:
• The meter is connected to a USB port of the PC
• Go to Settings menu and check the COM port number. Make sure you are
using the right COM port on your PC. Choose 9600 for COM Baud Rate.
You can check the connected COM port by opening the Device Manager
(From the system properties) and review all the COM ports.
• Click the “Find” button, and the program should be able to establish
communication. The “Find” button will change to “Go”.
• Click the “Go” button, and the program will start to log data in real time. The
display update is every 250 msec.
Figure 4-1 shows the Main window after logging some data. The main window
shows the following:
• Display of line graph and digital values of air velocity and temperature in real time.
• Display high & low alarm lines and values for velocity
• Display response time in msec, volume air flow in CFM, cross sectional area in
square inches, and the atmospheric pressure in mmHg.
• High & low alarm LED indicators for the velocity channel. The LED indicator
will turn red when in alarm condition.
• Communication LED indicator. This is a flashing Green LED indicator to show
good communication. If there is no communication, this LED will not flash.