Lower Range Value Archives

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

Calibration can be carried out using a handheld communicator in the field, a laptop on the bench in the workshop,

Range Setting (Re-range) Range setting (re-ranging) refers to setting the scale for the 4 mA and 20 mA points. This

Transmitter Output Current Trim (Analog Trim) It is rare for the analog output current circuitry of a 4-20 mA transmitter