Installation and Setup
X-320M™ User's Manual
Sensor Connection
This drop down menu allows you to select which type of input you are using to monitor wind speed.
The typical sensor connection are the following:
-
None:
This is used if no sensor is connected to monitor solar radiation.
-
Rate 1-2:
This option is used if the sensor connected outputs a pulse based on the solar
radiation.
Note: Input 1 or 2 must be configured as a counter when using rate.
-
Analog 1-4:
This option is used if the sensor connected outputs an analog value based on
the measured solar radiation.
-
Rmt Analog 1-4:
This option is used if the sensor being used 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, it the
Average Period is set to 30 minutes, X-320M™ will keep track of the last 30 samples (1 sample/min)
and average them over the 30 minute period. If the Average Period is set to zero, no averaging will
be used. The Average Period can be set from
0
to
60
minutes. The default average period is
60
minutes.
Units
The units used to measure Solar radiation is W/m
2
.
High Alarm
This setting is used to set the trigger point for a high alarm condition. The alarm is triggered when
the value at the sensor exceeds the High Alarm Value. The default High Alarm is
20
.
Low Alarm
This setting is used to set the trigger point for a low alarm condition. The alarm is triggered when the
value at the sensor drops below the Low Alarm Value. The default Low Alarm is
10
.
Deadband
The Deadband prevents alarms from triggering excessively when the sensor measurement
vacillates around the trigger point.
With High Alarms, the measurement must fall below the High Alarm point minus the Deadband
before the high alarm will be triggered again. Likewise, the deadband on the Low Alarm requires the
measurement to rise above the Low Alarm point plus the Deadband before the Low Alarm will be
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Xytronix Research & Design, Inc.
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