KROHNE OPTISONIC 7060 EN - Manual (Page 14)

OPTISONIC 7060
Electrical & mechanical installation manual 730962.31.00 page 14 of 52
2.4 Operating modes and signal output
The OPTISONIC 7060 measuring system has the following operating modes:
¾
Measurement
Normal, fault-free system operation. The pulse and switching outputs, as well as the current
output are updated periodically. The “Warning” status signal may be set automatically
by the system in the course of the self-diagnosis (for details see Section 2.6).
¾ Check requested
This mode is active for multipath flowmeters only, if one measuring path has failed and the
adaptive path failure compensation has been activated. The measuring system compensates
for this failure but the measurement accuracy can be slightly reduced.
¾ Configuration
Mode for changing parameters and performing system tests. When this mode is active,
the measured values are considered to be invalid, although all the measurements and
calculations are carried out as in the "Measurement" mode (except system tests).
¾ Malfunction
This mode is activated when faults occur that prevent the system from measuring accurately.
If the cause for the fault ceases to exist, the system returns to "Measurement"
mode automatically.
Any operating modes are recorded in the logbook together with their respective activation
and deactivation time.
Output value in operating mode
Output, signal Measurement Check requested Configuration Malfunction
“Measured value” Frequency signal proportional to the volumetric flow “open”, measurement fault *
“Check requested” *
Status signal “open”
Measurement valid “closed”
Compensation of a faulty
path (reduced accuracy) “undefined” “undefined”
“Direction of flow” *
Status signal “open”
positieve direction of
flow;
“closed”
negative direction of
flow “open”
positieve direction of flow;
“closed”
negative direction of flow “undefined” “undefined”
“Warning” If “Warning” active,
then digital output
“closed”, else “open” If “Warning” active, then
digital output “closed”,
else “open” “undefined” “undefined”
LCD
Display flashing
Display flashing
Serial port RS485 • Measured value, diagnosis information and parameters
• Measuring data logging, diagnosis and parameterisation
• Connection with external process control equipment through implemented MODBUS protocol
(data polling)
* Output value can be changed by test commands.
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OPTISONIC
7060