Endress+Hauser CUM 750, Руководство по эксплуатации

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CUM 750 / CUS 70 Operation
Hauser 27
Gain increment:
Set the gain increments of the measuring signal between each screen refresh, e.g. Gain 20 + 0.5.
Enable the automatic gain "Auto gain" function first.
Setting range: 0.5 ... 5.0 steps
Clip count:
Set the number of pixels which the 75% display height can exceed before the gain is scaled back, e.g.
75% + 50 pixels.
Setting range: 0 ... 200 pixels
SV adjust (Sound velocity):
Use this parameter to compensate for temperature differences. The sound speed is then automatically
adjusted as the temperature changes. (This function is not supported by the current version.)
Setting range: ON / OFF
AG setpoint (Auto gain):
Here enter the minimum height or the graphic display at which the measurement signal should be
boosted. Example: 30.
Setting range: 10 ... 50
Gain band:
Set the gain tolerance to which the measuring signal can boosted.
Example: 20 + 10.
Setting range: 1 ... 30
Operation:
Move through the submenu by pressing the
→ → → →
key, select numeric values by pressing the '
↑↑↑↑
‘ / '
↓↓↓↓
‘ keys
(see Chap. 6.1 "Key assignment"). Confirm and return to the main menu by pressing the ‘E’ key.
6.6.3 TRACKING submenu
Specific data for the direction and movement of the ultrasonic signal are entered in the TRACKING
submenu.
Algorithm:
Use this function to set the direction in which the measuring system searches for the separation zone.
The algorithms work in conjunction with the THRESHOLD to determine the required separation zone.
•
The FIRST algorithm defines a "up to down" orientation. "Up" represents the water surface and
"down" the basin bottom. The measuring system starts the signal data processing at the zero point
(bottom edge of sensor) and localises the first separation zone which corres-ponds to the defined
threshold value conditions.
•
When you use the SECOND algorithm, the measuring system starts the signal data processing at
the zero point (bottom edge of sensor) and localises the second separation zone, which corres-
ponds to the defined threshold value conditions.
•
The LAST algorithm defines a direction from "down to up". The measuring system starts the signal
data processing at "Max. range" (usually the basin bottom) and localises from there the first sepa-
ration zone nearest to the basin bottom which corresponds to the defined threshold value condi-
tions i.e. the last separation zone from the zero point (bottom edge of sensor).
Setting range: FIRST / SECOND / LAST