Siemens HydroRanger 200 HMI Operating Instructions Manual page 205

Relay dead band (2.8.2.5.)
Sets the distance above and below the bound alarm setpoints.
Index
Values
Related
Note
This parameter applies only to in-bounds and out-of bounds relay functions.
For In-bounds and Out-of-bounds Relay Functions [Relay Function (2.8.1.4.) (Page 195) =
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.
①
②
③
④
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
Relay
Range: 0.000 ... Span( 2.2.2.) (Page 169) value, or equivalent, depending on
Units (2.1.1.) (Page 162).
Preset: 2% of Span (2.2.2.) (Page 169).
Relay function (2.8.1.4.) (Page 195)
•
ON setpoint (2.8.1.5.) (Page 197)
•
OFF setpoint (2.8.1.6.) (Page 197)
•
Actual On or OFF setpoint
Relay dead band (2.8.2.5.)
Setpoint set in ON setpoint (2.8.1.5.) (Page 197) or OFF setpoint (2.8.1.6.) (Page 197)
Actual OFF or ON setpoint
Enter the dead band in units of measure [Units (2.1.1.)
(Page 162)]. The dead band value is applied both above
and below the upper and lower bound setpoints as
shown in the figure.
Parameter reference
8.6 Setup (2.)
203