8-7
Alarm Configuration
•
Alarm Set Threshold:
The trigger level for this alarm. When temperature exceeds
the Alarm Set Threshold, the VMR/NPS can send an alarm (if enabled) and/or begin
Load Shedding (if enabled.) For more information on Load Shedding for the Over
Temperature Alarm, please refer to Section 8.2.1. (Initial Threshold: Default =
110°F or 43°C, Critical Threshold: Default = 120°F or 49°C.)
Note:
The Alarm Set Threshold value must be greater than the Alarm Clear
Threshold value. The VMR/NPS will not allow you to define an Alarm Clear
Threshold value that is higher than the Alarm Set Threshold.
•
Alarm Clear Threshold:
Determines how low the temperature must drop in order
for the Alarm condition to be cancelled and for Load Shedding (if enabled) to
occur. For more information on Load Shedding for the Over Temperature Alarm,
please refer to Section 8.2.1. (Initial Threshold: Default = 100°F or 38°C, Critical
Threshold: Default = 110°F or 43°C.)
Note:
The System Parameters menu is used to set the temperature format for
the VMR/NPS unit to either Fahrenheit or Celsius as described in Section 6.2.
•
Resend Delay:
Determines how long the VMR/NPS will wait to resend an email
message generated by this alarm, when the initial attempt to send notification was
unsuccessful. (Default = 60 Minutes.)
•
Notify Upon Clear:
When this item is enabled, the VMR/NPS will send additional
notification when the situation that caused the alarm has been corrected. For
example, when Notify Upon Clear is enabled, the VMR/NPS will send initial
notification when it detects that the temperature has exceeded the trigger value,
and then send a second notification when it determines that the temperature has
fallen below the trigger value. (Default = On.)
•
Email Message:
Enables/Disables email notification for this alarm. (Default = On.)
•
Address 1, 2, and 3:
These parameters are used to select which of the three email
addresses, defined via the "Email Messages" menu (see Section 6.8.10,) will receive
the email alarm notification messages generated by this alarm. The Address
parameters can be used to select one, or any combination of the addresses defined
via the Email Messages menu. (Default = All On.)
Note:
If Email addresses have been previously defined, then the text under the
parameters will list the current, user defined email addresses.
•
Subject:
This parameter is used to define the text that will appear in the "Subject"
field for all email notification messages generated by this alarm. (Default = "Alarm:
Over Temperature (Initial)" or "Alarm: Over Temperature (Critical)".)
•
Load Shedding:
Provides access to a submenu, which is used to configure and
enable the Load Shedding feature for the Over Temperature alarms. When Load
Shedding is enabled and properly configured, the VMR/NPS will switch specific,
user-selected plugs On or Off whenever the temperature exceeds the Alarm Set
Threshold value. If the Auto Recovery feature is enabled, the VMR/NPS can
also return these user-selected plugs to their prior status, when the temperature
falls below the Alarm Clear Threshold value. For more information on the Load
Shedding Feature and Auto Recovery, please refer to Section 8.2.1.
