Click to reload page with unique web address for bookmarking or sharing current settings
Invert the low & high range limit settings for the input or output side
Flip tool with current settings to swap I/O parameters and/or apply a square root extraction if required
Contents
Related Tools
User Guide
This square root extraction input to linear output conversion tool provides an easy way to determine the ideal linear output produced by a measurement instrument for any given sqrt input value. A conversion scale for each specified square root extraction input and linear output range combination selected will be displayed below the calculated output.
Input
Input Unit
Enter the measurement unit associated with the input values.
SqRt Input Reading
Enter the Square Root Extraction Input measurement reading to be converted.
Lowest SqRt Input
Enter the minimum possible value for the sqrt input range. The value can be a negative or a positive value and should be in the same engineering units as all SqRt Input values.
Highest Linear Input
Enter the maximum possible value for the sqrt input range. The value can be a negative or a positive value and should be in the same engineering units as all SqRt Input values.
Output
Output Unit
Enter the measurement unit associated with the output values.
Lowest Linear Output
Enter the minimum possible value for the linear output range. The value can be a negative or a positive value and should be in the same engineering units as all Linear Output values.
Highest Linear Output
Enter the maximum possible value for the linear output range. The value can be a negative or a positive value and should be in the same engineering units as all Linear Output values.
Linear Output Reading
This is the ideal Linear Output for the specified SqRt Input Reading and excludes all measurement device errors and uncertainties.
Help
10t/h flow to linear dp pressure
I have a dp flow transmitter with a 0-250 mbar (field linear) range, and a DCS with a flow range of 0 – 15 t/h and a setpoint of 10 t/h, what mA reading do I have to simulate from field in linear?
The linear reading to simulate would be 11.1111 mA
SqRt to Linear % span formula
What is the formula for converting a square root reading as percentage of span to a linear reading?
The formula is as follows:
%LinSpan = (%SqRtSpan/100)² x 100
% flow measured by dp transmitter to linear 4-20mA
A dp type transmitter shows 30% of steam flow on the LCD display, how can I find the formula to convert to the linear milliamp reading?
Assuming a typical milliamp signal of 4-20mA, the formula to use would be:
mA = (%Rdg/100)² x 16 + 4
Using this sqrt to linear signal converter enter the following values:
Square Root Extraction Input
- Reading = 30
- Lowest = 0
- Highest = 100
Linear Output
- Lowest = 4
- Highest = 20
- Answer = 5.44
The resulting sqrt 0-100% to linear 4-20mA conversion scale is as follows:
