Endress+Hauser Proline Prosonic Flow 93 Function Manual page 67

Device functions Proline Prosonic Flow 93
Endress+Hauser
➞
OUTPUTS PULSE/FREQUENCY OUTPUT (1...2)
VALUE f LOW
!
(4204)
This function is not available unless the FREQUENCY setting was selected in the
OPERATION MODE function (4200).
Use this function to assign a variable to the start value frequency (4202). The value can
be greater or less than the value assigned to the VALUE f HIGH. Positive and negative
values are permissible, depending on the measured variable in question (e.g. volume
flow). You define a measuring range by defining the VALUE f LOW and VALUE f HIGH
values.
User input:
5-digit floating-point number
Factory setting:
0 [unit]
!
• Graphic illustration of VALUE f LOW see function VALUE f HIGH (4205) on page 67.
• The appropriate unit is taken from the group SYSTEM UNITS (ACA) (see Page 15).
VALUE f HIGH
!
(4205)
This function is not available unless the FREQUENCY setting was selected in the
OPERATION MODE function (4200).
Use this function to assign a variable to the end value frequency (4203).
The value can be greater or less than the value assigned to the VALUE f LOW.
Positive and negative values are permissible, depending on the measured
variable in question (e.g. volume flow). You define a measuring range by defining the
VALUE f LOW and VALUE f HIGH values.
The assignment applies for both flow directions for measuring mode SYMMETRY
(see Page 59) and only for the selected flow direction for measuring mode STANDARD.
User input:
5-digit floating-point number
Factory setting:
depends on the setting in the function ASSIGN FREQUENCY (4201):
volume flow: 20 l/s
sound velocity: 1800 m/s
flow velocity: 10 m/s
corresponds to the factory setting for the final value.
➀
➁
"
The frequency output responds differently, depending on the parameters set in the
various functions. Some examples of parameter settings and their effect on the frequency
output are given in the following section.
!
The appropriate unit is taken from the group SYSTEM UNITS (ACA ) (see Page 15).
(Continued on next page)
Functional description
➞
CONFIGURATION (GENERAL/FREQUENCY)
Note!
Note!
Note!
Freq.
125
100
0
➀
= Value f min
= Value f max
Caution!
Note!
7 Block OUTPUTS
Q
➁
A0001279
67