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BGX501-806-R02, Censeo User Manual
Public
and all losses for the pump/ hydro-turbine setup are known, pump/ hydro-turbine efficiency and flow rate can be
easily determined using fluid constants such as specific gravity, isothermal coefficients, specific heat, etc.
Censeo employs the polytropic method for calculating the blower efficiency.
5.2 Benefits
The thermodynamic method works well for pumps, with heads as low as 10 metres, as well as hydro turbines.
Not only is the achieved accuracy of measurement better than those obtained by conventional methods, it easily
exceeds 99%.
Availability of accurate, real time numerical data can be read by a computer and used to plot performance
graphs for a pump. Arriving at the most optimum point of operation thus becomes possible.
Because pump/ hydro-turbine graphs are available to the operator, it is possible to schedule the daily operation
as well as pump/ hydro-turbine service and repair. Real time condition monitoring of the pump/ hydro-turbine
helps in its correct operation and enhancing its life. Correct operation of the pump/ hydro-turbine leads to lesser
maintenance and pump/ hydro-turbine down time.
Because of electronic measurements and digital data, it becomes easy to generate reports with a computer and
communicate the same over various communication technologies and to interface with complex Control And
Data Acquisition (CADA) systems.
5.3 What does Censeo Measure
Censeo accepts inputs from two temperature probes, two pressure transducers and a power meter to calculate
pump/ hydro-turbine/ blower flow performance parameters and flow rate.
While temperature and pressure analogue inputs are fed through individual probes, the power meter input is
always on RS485.
Censeo measurements are available in real time for effective monitoring and generating highly accurate pump/
hydro-turbine/ blower performance graphs. (Refer section Basic System Block Diagram for Pump Flow
Measurement)
5.4 Input and output
In addition to temperature, pressure and power inputs, Censeo can also accept eight analogue software
configurable inputs, either 4-20 mA or 1-5 V, which can be used towards various computational purposes.
The possible parameter assignments to these inputs, with their available units, are as follows:
S.No.
Description
Units
S. No.
Description
Units
1
Temperature
Celsius (°C)
4
Level
centimetre
Fahrenheit (F)
Inch
milli-Kelvin (mK)
metre
5
Voltage
Volts
2
Pressure
Pascal (Pa)
6
Current
Amperes
kiloPascal (kPa)
milliAmpere (mA)
MegaPascal (MPa)
7
Power
Watt (W)
bar
kiloWatt (kW)
millibar
8
Frequency
Hertz (Hz)
pounds per square inch
(psi)
9
Vibration
Hertz (Hz)
centimetre
10
Speed
rpm
inch
11
Efficiency
percentage
metre
12
Absolute humidity
Percentage
