ADS Environmental Services FlowShark Pulse QR 775004 A1 - Manual (Page 124)

8-34 ADS FlowShark Pulse O&M Manual
z Velocity v2 Analog signal output represents average velocity from sensor 2.
z
Velocity v3 Analog signal output represents average velocity from sensor 3.
Figure 8-46 Selecting analog output functions
The hardware configuration of the Model 20 transmitter allows the
user to route the analog input to the analog output. While the user
can configure the Model 10 transmitter for this setup, the wiring in
the Model 10 does not support this hardware implementation.
Output span
Select one of the following output spans: 0-20 mA or 4-20 mA.
Measurement span or range
Define the range for the analog output signal. Negative values may be included.
Figure 8-47 Measurement span
Example:
The measurement location tends to experience backwater conditions. Therefore, the
unit will record negative values. However, the system has only one analog input
available. When this occurs, set the analog output signal for "floating” conditions.
Configure the measurement span so that the zero (0) reading for flow exists in the
middle of the measurement span, such as the following:
4 mA = -1.00 mgd
20 mA = 1.00 mgd
For this example, the signal output for a zero (0) reading for flow would be 12 mA.
Backwater would decrease the analog signal; positive flow would increase the signal.