Endress+Hauser Proline Prowirl 73 - Pulse, Frequency, Status Functions

Description of device functions Proline Prowirl 73
122 Endress+Hauser
11.11 PULSE, FREQUENCY, STATUS
Function description, PULSE, FREQUENCY, STATUS group
OPERATION MODE Description
Use this function to specify whether the output functions as a frequency output, pulse
output or status output. The functions available will vary in this function group,
depending on which option you select here.
• If PFM is selected, the CURRENT OUTPUT group (ä 119) is no longer available.
Current simulation is automatically activated with a simulation value of 4 mA. If the
transmitter was wired for pulse-frequency modulation (ä 29), the HART protocol
is not available.
• If VORTEX FREQUENCY and PFM are selected, the vortex pulses are passed on
directly. The low flow cut off is taken into account.
Options
FREQUENCY
PULSE
STATUS
VORTEX FREQUENCY (ä 80)
PFM (ä 80)
Factory setting
PULSE
ASSIGN FREQUENCY Prerequisite
The function is only available if FREQUENCY was selected in the OPERATION MODE
function (ä 122).
Description
Use this function to assign a measured variable to the frequency output.
Options
VOLUME FLOW
TEMPERATURE
MASS FLOW
CORRECTED VOLUME FLOW
HEAT FLOW
CALCULATED SATURATED STEAM PRESSURE
FLOW VELOCITY
TEMPERATURE (EXTERNAL)
PRESSURE (EXTERNAL)
DENSITY (EXTERNAL)
Factory setting
VOLUME FLOW
START VALUE
FREQUENCY
Prerequisite
The function is only available if FREQUENCY was selected in the OPERATION MODE
function (ä 122).
Description
Use this function to specify a start frequency for the frequency output. The associated
measured value of the measuring range is specified in the VALUE f LOW function.
Example:
Start frequency = 0 Hz, VALUE f LOW. = 0 kg/h: i.e. a frequency of 0 Hz is output at a
flow of 0 kg/h.
Start frequency = 10 Hz, VALUE f LOW. = 1 kg/h: i.e. a frequency of 10 Hz is output at
a flow of 1 kg/h.
User input
5-digit fixed point number: 0 to 1000 Hz
Factory setting
0 Hz