Dynasonics PFP-600 - Manual (Page 15)

NOTE: damping factor will affect the display, alarms, and 4-20mA.
To turn on test mode, press “TEST” key, display will show “TEST MODE”. The 4-20mA
output will be set to 20mA. Press “ENTER” key to exit function.
To access the 2nd function, press the “2nd FUNCT” key, display will show “SERVICE
MODE”. Then select any function that is located in the yellow part of the key pad.
Press “ENTER” key to exit function.
To view the Doppler’s signal strength level, press “2nd FUNCT” key, then “SIGNAL
STR” key. The display will show “SERVICE MODE” and “SIGNAL STR.”. When flow is
present, a good signal strength level is 150 or higher. Press ‘ENTER’ key to exit
function.
To adjust the 4mA output press “2nd FUNCT” key then the “4mA” key. The
µP display
will show “SERVICE MODE” and “4mA”. Use the ‘SCROLL” keys to increase or
decrease the 4-20mA output level. When finished with function, press “ENTER” key.
To view the Doppler’s raw velocity level, press “2nd FUNCT” key and then “VEL ADC”
key. The
µP display will show “SERVICE MODE” and “VEL ADC1”. When flow is at 10
FPS, a level of 1024 will be displayed. Press “ENTER” key to exit function.
To set the liquid Blanking time, press “2nd FUNCT” key and then the “BLANKING” key.
The
µP display will show “SERVICE MODE” and “BLANKING”. Use the “SCROLL”
keys to increase or decease the minimum liquid level the unit can read. This is done by
rejecting receive signals that are less than the set value 17 (0” -2.0”) or (1 blanking
change is equal to 0.2” liquid level). Changing the Blanking setting may also alleviate
unstable readings in some applications. Default level is 20
[0” - 2.6”]. Press “ENTER”
key to exit function.
NOTE: never set the blanking range greater than 75% of the minimum level you desire to detect.
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