2-34
1010ENFM-3B
Section 2
The flowmeter stores positive and negative accumulations in separate independent registers. It devel-
ops the NETFLOW output by summing the positive and negative totalizer registers. You use the keypad’s
function and numeric keys to control the flow totalizer registers. Energy and liquid volumetric total regis-
ters are simultaneously controlled by these commands.
POSFLOW.............. Positive (forward) energy/flow total only
NEGFLOW............. Negative (reverse) energy/flow total only
NETFLOW.............. The net of the Positive and Negative energy/flow (default)
2.5.4 REFLEXOR ZERO/FAULT SET OPTION (Available in the Reflexor Mode only)
NOTE: The [Zero/Fault Set] menu option only appears on the display if the selected Channel is
the Reflexor mode.
The FUE1010EN Reflexor declares a Fault when the receive signal drops below the Doppler detection
threshold. To change the Reflexor response to a Zero Flow indication rather than a Fault, select [Zero] in
the [Zero/Fault Set] menu option. Note the following:
a. FAULT – When selected the system will declare the Reflexor channel to be in Fault and the
flowmeter will indicate “F” on the display screen. Note that when a new Reflexor channel is created
the [Fault] option is the default mode. Also note that the sum (or difference) channel will also be
declared to be in Fault.
b. ZERO – When selected the Reflexor channel will be declared to be at Zero Flow instead of in
Fault and the flowmeter will indicate 0.00 on the display screen.
2.6 THE FLOW/TOTAL UNITS MENU
This menu is available after selecting a meter type and measurement channel. Use the Flow/Total Units
menu to select energy and volumetric flow units and an associated time base for the energy and flow
rate and total outputs. After making your selections, a view-only menu cell shows the resultant scaling.
Another menu cell lets you adjust the output resolution by selecting a display range.
This system provides three totalizer display modes:
Siemens 2 Channel [1] BCD
Select Zero or Fault display
Operation Adjust
Damping Control Smart Slew
Energy Deadband 0.000
Deadband Control 0.000
Memory/Fault Set Memory
Memory Delay <sec> 120
Zero/Fault Set Fault
Zero
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