Siemens SITRANS FUH1010, Product Instruction Manual, Page: 131 / 264

Alarm, error and system messages
8.2 Alarms
FUH1010 IP65 NEMA 4X Precision Volume
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Operating Instructions, 01/2013, A5E32122003-AA
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Alarm Codes
8.2 Alarms
Set Alarm Levels Menu
The [Set Alarm Levels] menu allows you to select system alarm functions. Alarms appear
locally on the LCD digital display. In addition, you can use the Relay Setup menu to assign
those functions to the system’s relays. You may select from high or low energy or flow rate,
liquid interface (Vs) and liquid aeration alarm functions. Entry of all alarm set points is
accomplished using the selected rate units. You can enable or disable a Makeup Alarm
Latch to keep the makeup alarm active until you reset it manually by an <Fn>6 simultaneous
key press.
Interface Alarms Menu
The [Interface Alarms] menu cell is selected to monitor the sonic velocity (Vs). It is a
constant rate of change alarm function that monitors the LiquIdent setting. The alarms
appear locally on the LCD digital display.
ROC Alm Set m/s (Rate of Change)
Use the [Roc Alm Set m/s] menu item to set the desired numerical alarm relay set point in
meters per second (m/s). For example, if the alarm relay set point value is set to 50 m/s,
when the Vs varies by 50 m/s from the current LiquIdent setting for the assigned time interval
(e.g., 10 seconds), the alarm relay will trip.
Interval Secs
Select the [Interval] menu item to set the time interval in seconds. This time interval value
affects how long the variation in [Rate Value m/s] will last before the alarm relay is tripped.