Kurz 410FTB, Руководство по эксплуатации

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Kurz B ‐ Series Operations Guide 2– 12
B ‐ Series Flow Meter Display Mode Options
Option 10 — NE-43 Alarm
The flow meter supports the NAMUR specification NE ‐ 43 for alarm support on the 4 ‐ 20 mA
signal. A standard (non ‐ alarm) signal level from the meter's analog output is between
3.8 to 20.5 mA. When the meter indicates an event code, this also triggers an NE ‐ 43 alarm.
Note
For a complete description of the NE ‐ 43 Alarm, refer to Option 10 in the
“Program Mode Advanced Options” chapter.
The following flow meter error events cause a NE ‐ 43 alarm:
•
External analog input out of range
•
Sensor type does not match board build
•
Unable to write configuration file to EEPROM
•
Abnormal sensor node voltages
•
Sensor type does not match configuration
•
Sensor over ‐ voltage crowbar engaged
•
Sensor control drive stopped responding
•
ADC failed to convert measurement
•
High sensor or wire leakage
•
Rps sensor lead open circuit
•
Wire loop resistance above high limit
•
Rtc resistance below low limit and above high limit
•
Rp resistance below low limit and above high limit
To view the NE ‐ 43 Alarm Setup menu in Display mode:
1>
Press D .
2>
Press 2 to invoke the Quick Jump option.
3>
Press 10 for the NE ‐ 43 Alarm Setup menu, and then press E .
NE-43 ALARM TYPE
>HIGH OUTPUT
The NE ‐ 43 alarm type prompt appears.
—
A LOW OUTPUT drives the 4 ‐ 20 mA output to
≤
3.6 mA when a meter fault occurs.
—
A HIGH OUTPUT drives the 4 ‐ 20 mA output to ≥ 21 mA when a meter fault occurs.
4>
Press H to exit.
The main Display mode (DSP) prompt appears.
^
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