Chapter Five: Operation in Leakage Mode
How To Switch Channels in the Main Display
129
How To Switch Channels in the Main Display
The system defaults to showing the leakage rate or instantaneous leakage for channel 1 in the
main display. The exception to this is if all four channels are used, whereupon the same
information for channel 4 appears in the main display. Channel 4 can only be monitored in the
main display.
By following the procedure explained below, leakage information from any of the four channels
can be shown in the main display. Alternately, the main display can be configured for a dual
channel display.
The dual channel display feature of the 146 unit automatically switches between two user-
selected channels that show leakage information in the main display. The dual channel display
can only be viewed in the main display. The channel numbers of the two user-selected channels,
which make up the dual channel display, are shown to the right of the main display.
Two dual channel setups can be configured (Dual Channel 1, and Dual Channel 2). The same
channel can be used in both setups. For example, if Dual Channel 1 switches the main display
between channels 1 and 4, Dual Channel 2 can still be setup to switch between channels 3 and 4.
It does not matter that channel 4 is used in both setups, because only one setup can be used a
time.
Note
The Dual Channel feature only effects what is shown in the main display.
System control cannot be governed with two channels.
One of the two channels used in a Dual Channel display can be used for
control. Control does not switch to the other user-selected channel,
however, when the main display readout switches to the other channel.
1. Repeatedly press the [
DISPLAY MODE
] key until the 146 unit is in Leakage Mode.
The system responds by scrolling through modes.
2. Press [1], [2], [3], or [4], (to select a channel), or press [
DUAL
][1] or [
DUAL
][2], (to select
dual channel display feature 1 or 2).
The system responds by showing leakage rate or instantaneous leakage in the main
display. This is true whether just a single channel is selected for the main display, or if
the dual channel display function is selected. Refer to Code 7: How To Set Up the Main
Display for Leakage Mode, in the Operation in Setup Mode chapter, to learn how to
select either leakage rate or instantaneous leakage.
For example, in Figure 33, page 125, the leakage rate for channel 4 is shown in the main
display. An example of a dual channel display is shown in Figure 35, page 130. In this
example, the leakage rate for channel 1 or channel 4, or a leakage rate from the two
channels combined, is shown in the main display.
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