FW_F115-P_M_v2201-01_EN.docx
High sensitive coil
input
Sensitive for
interference!
Active pulse input
detection level 8.2 V
DC
Active pulse input
detection level 12 V
DC
Active pulse input
detection level 24 V
DC
Input B is used to detect the direction of flow. For most applications the
settings will be the same as for the main (forward) signal, A. For
explanation of SIGNAL B, see SIGNAL A.
DISABLE Input B will be ignored.
ENABLE Phase difference between input A and B will be used to
detect the flow direction
Phase difference between input A and B can be set at 90 or 270 degrees.
Sets how a negative (reverse) flow should be handled.
DISABLE Reverse flow will be ignored. Flow rate will be zero, total
will not count.
ENABLE Reverse flow will be processed. Flow rate and total will be
updated according to the setting of Menu 7.7 Calculate
With this setting you can determine if flow A and Flow B use the same K-
Factor (as set for flow A) or different K-Factors for each flow. When single
is selected, the menus for Total B and Flow rate B are empty.
When setting 7.5 COUNT NEGATIVE is set to enable, 7.7 is used for
setting the calculation of (accumulated) total. Forward flow (A) is always
signed positive, totals will count up.
ADD Reverse flow (B) is signed positive and is added to totals.
DIFF Reverse flow is signed negative and is subtracted from totals.
3.3.9 MENU 8 - ANALOG OUTPUT
A linear 4-20 mA signal (option AB: 0-20 mA or option AU: 0-10 V) output signal is generated that
represents the flowrate. The settings for the flow rate influence the analog output directly. The
relationship between the flow rate and the analog output is set with the following settings.
If the analog output is not used, select disable to minimize the power
consumption (e.g. save battery life-time).
Option AP: When a power supply is available but the output is disabled, a
3.5 mA signal will be generated.
Enter here the flow rate at which the output should generate the minimum
signal (0)4 mA or 0 V - in most applications at zero flow. The number of
decimals shown depend upon setup 2.3. The engineering units/time (e.g.
L/min) are dependent upon setup 2.1 and 2.2.
Enter here the flow rate at which the output should generate the maximum
signal (20 mA or 10 V) - in most applications at maximum flow. The
number of decimals shown depend upon setup 2.3. The engineering
units/time (e.g. L/min) are dependent upon setup 2.1 and 2.2.
ABSOLUTE Negative flow results in positive analog output as with
positive flow
IGNORE Negative flow results in analog output as with no flow
((0)4 mA or 0 V).
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