OAFE-2000
IO&M Manual
Paragon Controls Incorporated
23
Revision Level 000
selected, the temperature value entered in the Fixed box is used. If Variable is selected, an external
analog temperature input signal from a temperature sensor is required (see Sections 5.2.3). If Network
is selected, the temperature input is obtained through network communications. The temperature value
is only displayed on the main screen if the Temperature Source is set to Variable or Network. If Fixed
is selected, temperature will not be displayed on the main screen.
Min and Max Temperature
The minimum and maximum temperature range (scaling) will be entered in two respective boxes when
Variable is selected as the Temperature Source. This range will scale relative to the analog input with
minimum being 0V or 4mA and maximum being either 5V, 10V, or 20mA, depending on the Analog
Input signal selected in Section 5.2.3.
Fixed Temperature Value
The fixed temperature value can be entered or modified in this box when Fixed is selected as the
Temperature Source.
The standard/default Fixed Value is 68
˚
F.
Temperature Units
The user can select between the temperature units of Fahrenheit or Celsius via toggle buttons.
Default
is Fahrenheit.
Altitude Selection
Allows user to select from two different atmospheric pressure standards, Altitude or Barometric. Actual
air density will be calculated accordingly dependent upon the selection. Toggling between Altitude or
Barometric changes the user input field for the reference atmospheric pressure between Elevation (left
image) or Barometric (right image).
Default is Altitude.
Elevation and Barometric Pressure
If the Altitude Selection is in Elevation, this box allows the user to enter a specific elevation in feet
above mean sea level for density corrections.
The standard/default value for elevation is 0 feet or
sea level.
If the Altitude Selection is in Barometric, this box allows the user to enter a specific
barometric pressure. The value entered will need to be converted to Inches of Mercury (in.Hg) for
density correction.
5.2.7. Alarm Options
High and Low alarms are available for each System in the MTSE to alert the user to a situation defined
on this menu page. Alarms are available for flow and pressure modes and trigger when an individual
sensor’s value goes outside the alarm setpoint. Alarms can be useful to alert a user when a single fan
in an array goes down and the system automatically ramps up to accommodate the fan-failed scenario;
in this situation the total system flow will be maintained and therefore the system is satisfied however
there may be no other failed-fan notification. Navigate to this menu from the Main Screen by pressing
Setup » 7. Alarms
.
