Settings And Calibrations - Amprobe TMA-21HW User Manual

Settings and Calibrations

Air Velocity Unit Setting mode
• Push key to turn on the meter.
• Push "SET" key one time to enter this mode, the " SET " symbol is
displayed.
• Push "" and "" keys to select the desired measurement unit.
• Push "↵" key to store the choice.
• Push "SET" key several times until the " SET " symbol is disappeared
to exit the setting mode.
Flow Set Up mode
• Push key to turn on the meter.
• Push "SET" key two times to enter the Flow Setup mode, the " SET "
symbol is displayed.
There are 4 types : Round Duct ( ), Rectangle Duct (
(AREA), and K factor (Kf).
• Push "" and "" keys to scroll through the choices and push "↵" key to
confirm your choice.
If round duct is chosen, the " " symbol will displayed.
Use    and  keys to setting the size (diameter) from 1.0 to 635.0 cm
or 1.0 to 250.0 inches. Push "↵" key to store the value.
If rectangle duct is chosen, the "
Use    and  keys to setting the X – size of the duct, then push "↵"
key to store the value and advance to the next dimension, the "
symbol will displayed. Use    and  keys to setting the Y – size of
the duct, then push "↵" key to store the value.
If duct area is chosen, the "AREA" symbol will displayed. Use    and
 keys to setting the value and decimal point of the duct area from 0.001
to 9999ft2 or 929m2, then push "↵" key to store the value.
If K factor is chosen, the "Kf" symbol will displayed. Use    and 
keys to setting the value and decimal point of the K factor from 0.001 to
9999, then push "↵" key to store the value.
Note : Kf is the number by which the meter multiplies the velocity
measurement to display volume.
X" symbol will displayed.
10
), Duct Area
Y"