2600T Series Pressure transmitters | OI/266/HART-EN Rev. M 9
3 Transmitter overview
3.2 Range & Span consideration
The 2600T Transmitter Specification Sheets provide all information concerning the Range and Span limits in relation to the model
and the sensor code.
The terminology currently used to define the various parameters is as follows:
URL: Upper Range Limit of a specific sensor. The highest value of the measured value that the transmitter can be
adjusted to measure.
LRL: Lower Range Limit of a specific sensor. The lowest value of the measured value that the transmitter can be
adjusted to measure.
URV: Upper Range Value. The highest value of the measured value to which the transmitter is calibrated.
LRV: Lower Range Value. The lowest value of the measured value to which the transmitter is calibrated.
SPAN: The algebraic difference between the Upper and Lower Range Values. The minimum span is the minimum value
that can be used without degradation of the specified performance.
TD: (or Turn Down Ratio) is the ratio between the maximum span and the calibrated span.
The transmitter can be calibrated with any range between the LRL and the URL with the following limitations:
LRL ≤ LRV ≤ (URL - CAL SPAN)
CAL SPAN ≥ MIN SPAN
URV ≤ URL
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