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Enter the value for the 20mA and press OK (F4) key to accept the setting.
Then the following screen will display:
F1 F2 F3 F4
Enter the value for the 4mA and press OK (F4).
NOTE: 4mA is normally set to 0.
F1 F2 F3 F4
This menu allows the user to select an alarm fault level on the 4-20mA output. The
alarm is activated when a serious issue is detected preventing the calculation of the
correct flow rate. The 3.6mA and 21mA alarm outputs are related to the NAMUR
alarm feature.
The options are:
mA Fault=3.6 mA (Force the 4-20mA signal to 3.6mA on alarm)
mA Fault=21 mA (Force the 4-20mA signal to 21mA on alarm)
mA Fault=Not use (4-20mA signal alarm fault not used)
From any screen, press (F4) repeatedly until “Normal Mode” is seen briefly to exit the
programming mode.
NOTE: When the flow rate exceeds the programmed value for the 20mA set point, the
analog output will stay at 20mA and an alarm code will be generated.
Pulse/alarm Output
If the Pulse/alarm feature was purchased as the second output for the Model F-5500, it
can be accessed from the main menu, press I/O (F1) (screen appearance may vary).
F1 F2 F3 F4
Press PUL (F2) to select the pulse output. The following screen will show:
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • sales@onicon.com
F-5500 Thermal Mass Flow Meter Manual 06/17 - 2030 / 107023 Page 43
Model F-5500
OPERATION
Operation: Programming
Programming
by Display
4 mA = 0 SCFM
CHG OK
mA Fault = Not use
NXT OK
Pulse/alarm
Output
SET I/O
COM PUL 420 EXIT
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