X-320M™ User's Manual
Installation and Setup
Sensor Connection
This drop-down menu allows you to select which type of input you are using to monitor wind speed.
The following typical sensor connections are available:
-
None:
This is used if no sensor is connected to monitor wind speed.
-
Rate 1-2:
This is used if the connected sensor outputs a pulse based on wind speed.
Note: Input 1 or 2 must be configured as a counter when using rate.
-
Analog 1-4:
This option is used if the connected sensor outputs an analog value that varies
based on wind speed.
-
Frequency Input
:
This option is used if the connected sensor outputs a frequency based on
the wind speed.
-
Rmt Analog 1-4:
This option is used if the connected sensor is an analog sensor that is
being read from a remote Analog device, such as another X-320™ or Analog Module.
Slope
In many cases, the inputs must be scaled to represent “real-world” measurements. X-320M™ reads
the “raw” value from each input, and calculates the number that represents the “real-world”
measurement that the user is actually interested in. This real-world value (referred to as the “Scaled
Value” in this manual) is calculated using the following linear formula:
Scaled Value = Slope * Input + Offset
The Scaled Value is displayed on the
Status Page.
It is also used to determine alarm conditions,
and is shown in email messages.
“Slope” in the formula above is provided by the user and is entered in this field. The value is used to
scale the input to the range of detected condition.
The default value for this field is
1
.
When the Slope is set to 1 and Offset is 0 (default values), the Scaled Value equals the Input Value.
Offset
The “Offset” is used for the “zero” measurement. The default value for this field is
0
. When both the
slope and offset are set to their default values, the Scaled Value equals the Raw Input.
Avg. Period
The Average Period is the length of time used to average the Scaled Value. For example, if the
Average Period is set to 5 minutes, X-320M™ will keep track of the last 150 samples (30
samples/min) and average them over the 5 minute period. If the Average Period is set to zero, no
averaging will be used. The Average Period can be set from
0
to
10
minutes. The default Average
Period is
2
minutes.
Note: Wind Direction and Wind Speed share the same average period. Making a change to the
average period in
Wind Speed
tab will result to the same change to the Average Period in
Wind
Direction
tab.
Note: If the Average Period is set to zero, then the
Status Page
will not show a Wind Gust value.
Xytronix Research & Design, Inc.
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