K-TEK MT5000 Installation & Operation Manua page 30

LINEARIZATION for FLOW
Fluid flow in a flume or open channel will present some of the same characteristics as a level in a tank. If you exam-
ine a cross section of a liquid flowing at a particular rate through a channel, it will rise to a certain level in that chan-
nel. As the flow increases, the level in the cross section of channel will rise. Knowing the aspects of the channel, we
can create a correlation between the measured level of the fluid and the rate of flow through the channel.
Due to the method of operation of the MT5000 and the physics of flow, there are specific mounting requirements
when using a Guided Wave Radar transmitter in a flow application.
1. A rigid probe must be used and it must be secured to the bottom of the flow channel.
2. A single rod probe design will require the use of a metal launch plate mounted to the MT5000 coupler.
3. The MT5000 probe and transmitter must be mounted 3 times the head height upstream from the end of the
channel or from the flow change.
Below is a typical Linearization setup for channel flow.
SETTINGS
LINEARIZATION TABLE
LIN OUTPUT
Flow
LIN UNITS
gallons/min
LIN MINIMUM
01
00.00
03
LIN MAXIMUM
05
80.00
07
LIN MODE
09
Manual
11
PROBE LENGTH
Points 02,04,06,08,10 and
24.00
MT5000-0200-1 Rev f (10-2010) DCN0528
Input OUTPUT
Point POINT
0.50‖ 10.00
1.00‖ 20.00
2.00‖ 30.00
3.00‖ 40.00
4.00‖ 50.00
5.00‖ 60.00
12-20 are not used
30