ONICON F-4000 Series User Manual
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11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
F-4000 Series Ultrasonic Flow Meter Manual 05/15 - 0707-13 / 18838
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Speed of Sound (M/S)- displays the current speed of sound of the fluid in meters/second.
Operating Status (----------) displays the current status of alram messages. The table below briefly
describes the one letter code for each message.
Letter
Alarm Message
S
Spacing - indicates a problem with the spacing of the transducers.
Z
Zero - indicates a fault with the zeroing function.
E
Empty - indicates that the empty pipe alarm is active.
R
Rate - indicates a flow rate above or below the maximum or minimum alarm levels.
F
Fault - indicates three continuous seconds without a new data update.
A
Aeration - indicates excessive amounts of entrained air in the flow stream.
M
Memory - last valid reading for a selected interval during a fault condition.
K
Make-up - indicates an in-process make-up occurred.
I
Interface - indicates the maximum speed of sound alarm set-point was exceeded.
4.5 SECURITY SWITCH
The ONICON F-4200 features a security switch that prevents changes to program settings when
enabled. The meter is shipped with this security switch disabled so that the user can recall and
install the saved “site.” It is strongly recommended that this switch be moved to the enabled
position once the meter is fully operational.
IMPORTANT NOTE
With the security switch enabled, you can still navigate through the programming menus, but
you cannot change any of the settings. A “SECURITY” message will appear on the LCD display to
indicate that the security switch is enabled.
i
Left: Security Disabled Right: Security Enabled