ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 127)

6-28 ADS Portable FlowShark Pulse Manual
measures the medium range, and the air-ultrasonic depth sensor measures the low
range.
The water-ultrasonic combination sensor must be installed at the bottom of the pipe in
the center.
P
Air-Ultrasonic, Water-Ultrasonic, and Pressure
Sensor Combination: Pressure, Water-Ultrasonic, and Two-Wire Sensor
ADS recommends this option for applications exhibiting the same conditions as
described with the previous air-ultrasonic, water-ultrasonic, and pressure
combination. However, the external 2-wire probe would be used in place of the air-
ultrasonic depth sensor to measure low depth levels.
The water-ultrasonic combination sensor must be installed at the bottom of the pipe in
the center.
Mounting Offset
After selecting Water-US int and Pressure int, the unit sets the mounting offset to 0
inches by default. The bottom edge of the ground plate (i.e., the pipe bottom) serves
as the reference point.
When selecting air-US NIVUS, the reference point is also the bottom edge of the
ground plate. However, this refers to the pipe crown for this sensor.
The unit automatically specifies the mounting height of the air-ultrasonic depth sensor
or mini air-ultrasonic depth sensor after you set the pipe dimensions.
The corresponding mounting heights will be adjusted based on the prevailing
conditions and the installation characteristics once you set the level in the CAL menu.