Transmitter Turndown Ratio, Set Span and Zero Span
Explanation of the terms: Transmitter’s Turn down (TD) ratio, set span and zero based span Consider a Pressure Transmitter and we will discuss some important parameters related to it. Range...
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Smart Transmitter Calibration Tutorial Part 1
Calibration can be carried out using a handheld communicator in the field, a laptop on the bench in the workshop, or from intelligent device management (IDM) software as part of...
Smart Transmitter Calibration Tutorial Part 2
Range Setting (Re-range) Range setting (re-ranging) refers to setting the scale for the 4 mA and 20 mA points. This scale is usually referred to as “calibrated range” or “calibration...
Smart Transmitter Calibration Tutorial Part 3
Transmitter Output Current Trim (Analog Trim) It is rare for the analog output current circuitry of a 4-20 mA transmitter to drift. However, should the analog output current be incorrect,...