Endress+Hauser Prosonic S FMU90 - Page 89

The "Relay/Controls" menu
89
8.3.3 "pump control N" (N = 1 or 2)
"reference"
Defines the level channel to which the pump control refers.
Selection:
• none (default)
• level 1
• level 2 (for instrument versions with 2 level inputs)
"number of pumps"
Defines the number of pumps participating in the pump control. At the end of the configuration
procedure a relay must be allocated to each of the pumps ("relay allocation" parameter set).
• Range of values : 1 ... 6 (depending on the number of relays)
•Default: 1
8.3.4 "pump control N" (N = 1 or 2)
"function"
Determines the type of pump control.
Selection:
• limit control (Default)
Each pump has its own switch-on point and switch-off point
• rate control
There is only one switch-on point and one switch-off point for all pumps. If the switch-on point
has been exceeded, several pumps are switched on in intervals until the defined pumprate is
obtained. For details refer to the chapter "Limit control and rate control".
8.3.5 "pump control N" (N = 1 or 2)
Determines, to which pump the following specifications refer.
⇒
pump control R1300
reference:
number of pumps:
⇒
pump control R1301
function:
⇒
pump control R1302
pump 1:
(pump 2:)
(pump 3:)
(pump 4:)