Datasheet ESRF-ESF

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Total Error Band (TEB) is a single specification that includes all possible sources of error in a gas flow measurement.

TEB should not be confused with accuracy, which is actually a component of TEB. TEB is the worst error that the sensor

could experience. The TEB specification on a datasheet may be confusing. ES Systems uses the TEB specification in its

datasheet because it is the most comprehensive measurement of a sensor’s true accuracy. ES Systems also provides

the accuracy specification in order to provide a common comparison with competitors’ literature that does not use the

TEB specification.

Offset

Full Scale Span

Flow Non-Linearity

Flow Hysteresis

Noise

Flow Non-Repeatability

Thermal Effect on Offset

Thermal Effect on Span

Thermal Hysteresis

Accuracy

TEB

All Possible Errors

Accuracy Performance

Range: 15, 20, 50, 100, 200, 300 ln/min

- 0% FS to 10%FS = ±0.125%FS

- 10%FS to 100%FS = ±1.0% RD

Total Error Band Performance

Range: 15, 20, 50, 100, 200, 300 ln/min

- 0% FS to 10%FS = ±0.125%FS

- 10%FS to 100%FS = ±1.25% RD

The figure below, illustrates the accuracy as well as the total error of the flow measurement of ESRF-ESF sensors.

1. Total Error Band