Data Logger - GE Power Quality Meter Series Instruction Manual

6.6 POWER ANALYSIS
The data logger feature allows the PQM to continuously log various specified parameters at the specified rate.
The data logger uses the 64 samples/cycle data. This feature is implemented into PQMPC as shown below.
1. Select the Setpoint > System Setup menu item to setup the data logger feature. This launches the System
Setup dialog box shown below. Select the Data Log tab to display the data logger parameters.
6
The state of each data logger and percent filled is shown. Use the START and STOP buttons to start and
stop the logs.
In the CONFIGURATION settings, the Log Mode is set as follows:
Run to Fill : when the data logger is full (100%) it will stop logging
•
Circulate : when the data logger is full, it will start from the beginning and overwrite the previous data (under
•
development).
The Log 1/2 Interval value determines how frequently the PQM logs each piece of data.
The total log size is approximately 64KB. The allotment of this memory can be varied between the two logs
to maximize the overall log time. Set the preference in Size Determination to let the PQM automatically opti-
mize the memory. If desired, the optimization can also be performed manually by the user.
In the PARAMETER ASSIGNMENTS settings, the Log 1/2 Fill Time values represent the amount of time the
data logger takes to fill to 100%. This time is dependent on the logging interval and the number of parame-
ters being logged.
Set the parameters to be logged by Log 1 and Log 2 by highlighting the selection in the Assigned Parame-
ters menu and checking the check box to assign it to the desired log.
6-18 PQM Power Quality Meter
6 SOFTWARE

6.6.4 DATA LOGGER

GE Power Management