Siemens HydroRanger 200 HMI Operating Instructions Manual page 163

Enter the dead band in units of measure (
Units
). The dead band value is applied both
above and below the upper and lower bound
setpoints as shown in the figure.
2.8.2.6. Wall Cling Reduction
2.8.2.6.1.
2.8.2.6.2.
Random setpoint range
A5E36281317
This parameter applies only to in-bounds and out-of-
Note:
bounds relay functions.
For In-bounds and Out-of-bounds Relay Functions (
Function
= In-bounds and Out-of-bounds, respectively), a dead band
prevents relay chatter due to material level fluctuations at both the
upper and lower setpoints.
2. 1 . 1 .
Transducer Selector
Sets the transducer index for all parameters applicable to this
sub-menu.
Level Setpoint Variation
Varies the ON and OFF setpoints to reduce material buildup on
the walls (defined in 2. 1 . 1 . Units).
Values
This value is the range in which the setpoints are allowed to
deviate. The pump ON and OFF Setpoint values are randomly
varied inside the range to ensure that the material level does
not consistently stop at the same point.
HydroRanger 200 HMI – OPERATING INSTRUCTIONS
Actual ON or OFF setpoint
2.8.2.5. Relay Dead Band
Setpoint set in
2.8. 1 .5. ON Setpoint
or
2.8.2.5. Relay Dead Band
Actual OFF or ON setpoint
Range: 0.000 to 99999.000
Default: 0.000
Level setpoint OFF
2.8. 1 .4. Relay
2.8. 1 .6. OFF Setpoint
Level setpoint ON
Level setpoint variation
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