PQube User Manual 2.1
Page 38 of 113
DC Monitoring
With the new ATT2 module, you can monitor DC Current, DC
Power, and DC Energy with your PQube.
Individual Ratios for each Analog channel
You can specify a separate ratio for the AN1-E channel and AN2-E channel. This is useful for
measuring DC Voltage on AN1-E and DC Current on AN2-E. Edit your setup file and navigate to the
[Analog_Ratios] section of your setup file. For example, if you have an ATT2-600V module with
50A:4V DC current sensor, use the following values:
; -- Valid values: from 1:1 up to 10000:1. You can use fractional values.
AN1-E_Channel_Ratio=100:1
AN2-E_Channel_Ratio=50:4
DC Power and Energy
Your PQube can multiply the AN1-E channel by the AN2-E channel to display DC Power. Connect
your DC voltage source to AN1-E and the output of your DC current sensor to AN2-E, and your
PQube will calculate the DC Power and Energy. Navigate to the [Analog_Ratios] section of your
setup file and edit the following tag:
; ------ Valid Values: ON OFF
; AN Energy Mode assumes that AN1 is voltage and AN2 is current,
; and turns on AN power and energy measurements.
; Turn this tag ON if using an optional ATT2 module.
AN_Energy_Mode=ON
Swap AN1 and AN2 in software
You can swap the AN1 and AN2 connections in your setup file, eliminating the need to physically
swap the wires if they have been improperly installed.
; ------ Use this section to correct an installation error.
; Valid values: ON, OFF
Swap_AN1_And_AN2_Connections=ON
Customize your Analog channels
You can customize the name of the AN1-E channel and AN2-E channel, and you can specify the
measurement units.
; ------ Use this section of tags to customize the names and units of
your analog channels.
; Analog energy mode does not have to be on for this.
; Valid names can be up to 5 characters.
; Valid values for units are "V", "A", "W", "DEG", "%", "NONE"
Analog_1_Channel_Name="DCV"
Analog_1_Channel_Unit="V"
Analog_2_Channel_Name="DCA"
Analog_2_Channel_Unit="A"
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