Endress+Hauser PROline Prosonic Flow 93 Function Manual page 114

3 Transducer Blocks (transmission blocks)
114
"TRANSDUCER_CH1" and "TRANSDUCER_CH2" (E+H parameters) /
Parameter Write access
with operating
mode
(MODE_BLK)
Low Flow Cut Off AUTO - OOS
- Assign
Low Flow Cut Off AUTO - OOS
- On Value
Low Flow Cut Off read only
- Unit
Low Flow Cut Off AUTO - OOS
- Off Value
PROline Prosonic Flow 93 FOUNDATION Fieldbus
Base index 1200 and 1300
Description
Use this function to assign the switch point for the low flow cut off.
Options:
OFF
VOLUME FLOW
Factory setting:
OFF
Specifies the switch-on point of the low flow cut off. Low flow cut
off is active if the setting is a value not equal to "0".
User input:
5-digit floating-point number
Factory setting:
0.0000


Note!
• A flow value of "0" is output via the output value OUT (AI Block)
when the low flow cut off responds. In addition, the status
changes to UNCERTAIN.
• The unit used is displayed in the "Low Flow Cut Off - Unit"
parameter and determined in the "System Unit - Volume Flow"
parameter, (see Page 110).
Displays the unit for the low flow cut off.


Note!
The unit for the low flow cut off is determined by means of the
"System Unit - Volume Flow" parameter, (see Page 110).
Specifies the switch-off point of the low flow cut off. Enter the
switch-off point as a positive hysteresis from the switch-on point.
User input:
0...100%
Factory setting:
50%
Example:
Low Flow Cut Off Assign = VOLUME FLOW
Low Flow Cut Off Off-Value = 50%
Low Flow Cut Off On-Value = 10
Low Flow Cut Off Unit = l/s
This results in an off-value of 15 l/s
(10 l/s + [10 l/s · 0.5] = 15 l/s).
Endress+Hauser