2-22 Installation and Operation 5707070-A
Advanced Energy
®
BEFORE SETTING ADVANCED PARAMETERS
The default setting for secondary keyboard functions is feet per second (fps), or
meters per second (mps) if the flow meter is configured for metric units. Once the
flow meter is operational and you wish to activate the analog bar graph, 4-20 mA
output, high or low alarm, or low flow cut-off options, you must first determine the
velocity (fps or mps).
To determine the velocity unit of measure, push and hold the FPS/1 or MPS/7 key on
the front panel of the electronics enclosure until the LCD screen changes and then
release the key. The fps (or mps) value will display in the rate column of the display.
With this information you may then push and hold the FPS/1 or MPS/7 key again and
return the display to the normal volumetric indication.
Sample Parameter Setting
You have a velocity of 5 fps and you would like the 4-20 mA output to be 12 mA or
50% of scale. Push and hold the MA/4 key until the screen changes and then release
the key. Enter a scale value of 10 fps via the keypad. The screen will automatically
return the display to volumetric indication. The 4-20 mA output will read 12 mA at the
terminal strip located on the right side of the main electronics circuit board.
Note: Never adjust any of the potentiometers on the main processor board. These
settings are to be performed by authorized personnel only.
SETTING ADVANCED PARAMETERS
This section explains how to set advanced parameters using the toggle keyboard on
the front panel of the unit.
Bar Graph
To Set the Analog Bar Graph of Flow Rate:
1. Press the FPS/1 or MPS/7 key to obtain the current feet per second or meters per
second reading. Press the key again to return to the flow reading parameters
previously shown.
2. Press the Graph/2 key. Enter the desired full-scale flow rate in feet per second or
meters per second.
3. To return to the rate and totalizer flow reading, press the Graph/2 key again.
4. To return to the graph, press the Graph/2 key again.
K Factor (Correction Factor)
The default K Factor on the Doppler flow meter is set at 90 hZ/ fps for version V 5.6.
For nearly all applications, this default K Factor setting should be adequate. There are
only a few circumstances that might merit adjusting the default K Factor setting on
your Doppler flow meter.
