Kurz 410FTB, Operation Manual

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Kurz B ‐ Series Operations Guide 4–24
Program Mode Advanced Setup
Option 10 — Setting Up the NE-43 Alarm
The flow meter supports the NAMUR specification NE ‐ 43 alarm on the 4 ‐ 20 mA signal. The range
for the non ‐ alarmed analog output signal is between 3.8 and 20.5 mA.
Figure 4 ‐ 1. 4 ‐ 20 mA operation with the NE ‐ 43 alarm
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
•
Flow rate above design limit
To access the NE ‐ 43 Alarm Setup menu in Program mode:
1>
Press P .
2>
Enter the Advanced access code, and then press E .
3>
Press 2 to invoke the Quick Jump option.
4>
Press 10 for the NE ‐ 43 Alarm Setup menu, and then press E .
NE-43 ALARM TYPE
>HIGH OUTPUT ^v
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.
NE-43 Alarm
(low value kick-out)
NE-43 Alarm
(high value kick-out)
Saturate Saturate
Normal Operation
3.6 3.8 20.5 21 0 mA