User's Manual

50 Meter Operation
from a portable generator or solar panel). This is done for safety considerations, as it
is important to note that
Disconnect Push Button
The push button on the front of the meter closes the load disconnect contactor. If a
command has been sent to the meter to set the load disconnect into the off state,
manual activation of the button will not turn the disconnect contactor on.
The length of time that the button must be pushed to activate the load disconnect
contactor is programmable. The range is 0 to 2.5 seconds. A setting of 0 provides
immediate activation.
Remote Disconnect
The meter can be commanded to trigger the load disconnect contactor to the off-state,
either remotely from NES System Software, or directly via the optical port using the
Provisioning Tool. However, the capability to close the load disconnect contactor
remotely can be disabled, since it could create a hazardous situation if a user who has
opened the load disconnect contactor manually may not realize it has been closed
remotely. You can disable this feature completely, so that the ability to close the load
disconnect contactor remotely is always disabled. As an alternative, you can disable
the feature partially, so that the ability to close the load disconnect feature remotely
is only disabled if it has been manually opened.
You can also disable the ability to close the load disconnect contactor remotely if load
side voltage is present or if load has been sensed. There are two ways to configure
these settings. The meter can be configured to check if load side voltage is present
and if load has been sensed. If either case is true, the ability to close the load
disconnect contactor remotely will be disabled. The meter can also be configured to
check if load side voltage is present without also checking if load has been sensed. In
this case, the ability to close the load disconnect contactor remotely will be disabled if
load side voltage is detected.
If a user attempts to close the load disconnect contactor remotely while either of
these conditions exist, the operation will fail and a Load Disconnect State Changed
alarm indicating the failure will be logged. In addition, you can specify text that will
be shown on the meter display when an attempt to close the load disconnect
contactor fails due to either one of these settings. Attempts to remotely close the load
disconnect contactor will also fail if the meter is unable to determine whether or not
load side voltage or load exists. This may occur if someone attempts to close the load
disconnect contactor shortly after it was opened, as it will take the meter a moment
to detect whether or not load side voltage is present. You can specify text that will be
shown on the meter display when this occurs, as well.
Consumers will not be able to prevent or defeat load disconnect triggering since the
disconnect mechanism operates even if the button is continuously pressed.
Disconnect Status
The OFF (open) or ON (closed) status of the load disconnect can be determined
remotely via NES System Software and locally via the Provisioning Tool.