EA Technology CableData CDC2 Operating Manual page 25

EA Technology CableData Collector Operating Manual 1365/L/01/1
There are two filter files; Filter 1 and Filter 2. These are copied across automatically during
the installation. These generally should not need to be changed. In the event that they do
need changing, this can be done by first copying the COE files to the local hard drive. Then
click the "..." button for Filter 1, and navigate to where you have copied the file. Select the
file, and then repeat this process for the second COE file for Filter 2. The button is
highlighted in Figure 19.
Figure 19 - Setting Filter 1 File
The default filters generally should not need to be changed unless advised by
EA Technology. The default filters are as follows:
Filter 1: HP 500kHz
Filter 2: HP 1.8MHz
If updating the selected filters, they should always be set so that the more restrictive filter is
set to Filter 2. For the supplied filters, the High Pass 500kHz filter will block frequencies from
DC up to 500kHz. The High Pass 1.8MHz will block frequencies from DC up to 1.8MHz. As
the High Pass 500kHz filter will let through a wider range of frequencies, this should be set
to Filter 1, with the High Pass 1.8MHz set to Filter 2.
The Cable Length Unit has two options that can be selected from the drop down list, these
are Metres and Feet. Select the unit that you wish to use for entering cable lengths.
The Witness/Facility Field Label is for a field on the main screen. This can be set to
Witness if there will be a witness observing work, then the witness's name can be entered. It
can be set to Facility Name in the event that it is desired to record the facility name
separately.
System Frequency is the operating frequency of the cable that is being measured. This
should be either 50Hz or 60Hz. This value is used by the CableData Collector to detect the
correct phase reference. Set the correct frequency for your location in this list.
If you wish to change any of these settings at a later date, this window can be brought up
again by clicking Settings from the main screen.
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