Omega FMA1001A series, User Manual

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4-1
Section 4 - Main Operations
The FMA1000 transmitter has a built-in LCD backlit display and keypad.
Using the display and the keypad, you can view the following parameters:
• The air velocity & air temperature in real time (Main Display)
• Maximum air velocity & temperature during the session
• Minimum air velocity & temperature during the session
• Volume air flow in Cubic feet per minute (CFM)
You can view and set the following parameters from the keypad:
• High Alarm set point for air velocity
• Low Alarm set point for air velocity
• Transmitter’s response time – This is the response time of the analog
output and the display reading in real time.
• Cross sectional area of the air flow duct
• Atmospheric pressure setting in millimeter of Mercury (mmHg).
Changing Display Engineering units - You can change the air velocity
Engineering unit display from Feet per minute (FPM) to meter per second
(m/s), miles per hour (MPH), and kilometers per hour (Km/h) from the keypad
(Press key). You can change the Temperature display from ºF to ºC or vise
versa by pressing the key. Turn on Display Back light - You can turn the
LCD backlight on or off by pressing the key.
High & Low Alarm set point s - You can set and enable the high & low alarm
set points for the air velocity as shown in the keypad flow chart. When in
the alarm condition, the HAL or LAL icon will flash on the LCD, and the
corresponding alarm voltage output will go high. The alarm voltage outputs
can drive external mechanical relays.
Display Volume air flow - The unit calculates volume air flow by multiplying
the air velocity by the cross sectional area of the pipe or the duct. The cross
sectional area can be set in the display menu as shown in the keypad flow
chart in square inches units. The volume air flow is shown in Cubic feet per
minute.
Main Operations
4
SET
-
MODE
°F-°C
SET
-
MODE
°F-°C
SET
-
MODE
°F-°C