AC Voltage Data Logger
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AC Voltage Data Logger
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OM-DLAV DATA LOGGER INSTRUCTIONS
The OMEGA OM-DLAV Data Logger is a self-contained precision instrument for
recording AC voltage. The OM-DLAV can store up to 16,000 measurements for
each recording. The recordings can be read using the supplied PC interface or
the optional OM-DP3 Data Plotter.
The Windows™ compatible software allows the user to set the OM-DLAV for a
recording session, read the recorded data in text or graphical format, and to
store the recorded data for future reference or analysis. Applications include
monitoring of compressor and fan run cycles, new installation tests, trouble
shooting intermittent problems, monitoring line voltage, etc. Refer to the following instructions for explanations of how to record and how to retrieve AC voltage
recordings.
SOFTWARE INSTALLATION
The Data Logger to PC program is supplied on 3- ½″ floppy disks. To install the
software follow the instructions below:
1. Insert disk 1 of 2 into Drive A.
1. If you are using Window™98 /95, click on START, then click on RUN.
3. Type A:SETUP and press Enter.
4. If you are using Windows™3.1, click on Program Ma na ger.
5. Select FILE, and select RUN.
6. Type A:SETUP and press Enter.
To get the latest product information and current release of the Data Logger to
PC software, visit the OMEGA website at www.omega.com
If you are not familiar with the above commands, refer to the instructions that are
supplied with your version of Windows™.
SETTING THE DATA LOGGER
The OM-DLAV recording interval or, sampling rate, is the time between each
voltage measurement that is saved in the logger’s memory. This interval is set
from the PC interface program (supplied) or from the optional OM-DP3 Data
Plotter. This interval can be set from 5 seconds to 60 minutes. A user message
of up to 20 characters can also be stored in the OM-DLAV. This message can be
used to identify a customer’s location or identify a particular logger for tracking
purposes. Use the example below to set a OM-DLAV logger.
1. Plug the PC interface cable (OM-DLS) into the printer port of the computer
being used to set the OM-DLAV. Plug the OM-DLAV being set to the cable
from the PC interface cable DLCABLE (part of OM-DLS package).
1. Start the Data Logger program. If you are using Windows™98/95, click on
Start, click on Programs, click on Omegalog, click on OMEGALOG. If you
AC Voltage Data Logger
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are using Windows™3.1, double-click on the window labeled Omegalog,
then double-click on the OMEGALOG icon.
3. The program will open with a
blank window showing no text or
graph. On the toolbar located
along the top of the screen, click
on the Setting Data Logger
before recording button. This
will open a secondary window
Setting Data Logger.
4. If a user message is desired,
click in the User Information
field and add the de sired
message. Note that the last
message will be dis-played and
will remain until it is erased or
changed by the user.
5. To select the sampling rate, click on
the down arrow in the Sampling
Rate box. This will open a dropdown menu with the recording
interval selections. Note that the
maximum recording times a r e
indicated in parentheses next to the
recording interval. The recording
intervals that correspond to charts
used by the OM-DP3 Data Plotter
show the appropriate chart selectio n in stea d of a maximum recording time.
6. Click on the desired sampling rate. You may need to use the up or down
arrows on the drop down menu to see more of the available recording intervals.
7. The time and date the logger is
set to will be the same time as
the PC clock. It is important to
make sure the time set in the PC
is correct. The PC time will be
displayed as the Voltage Date
and Time in the setting window.
Refer to the owner’s manual for your computer to find instructions on setting
the PC time if it is not correct.
8. When all of the settings for the OM-DLAV are to your satisfaction, click on OK
to store the setting in the OM-DLAV and to close the window.
9. The OM-DLAV is now set and ready to begin a new recording. Disconnect
the OM-DLAV from the PC interface.
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