Parameter reference
8.6 Setup (2.)
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
203
Relay dead band (2.8.2.5.)
Sets the distance above and below the bound alarm setpoints.
Index
Relay
Values
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).
Related
•
Relay function (2.8.1.4.) (Page 195)
•
ON setpoint (2.8.1.5.) (Page 197)
•
OFF setpoint (2.8.1.6.) (Page 197)
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.
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.
①
Actual On or OFF setpoint
②
Relay dead band (2.8.2.5.)
③
Setpoint set in ON setpoint (2.8.1.5.) (Page 197) or OFF setpoint (2.8.1.6.) (Page 197)
④
Actual OFF or ON setpoint
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