Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2020-12-02
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Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2020-12-02: Discussion topic: The measurement range of the 314 and 1151GP pressure transmitters was originally 0–100 KPa; now the zero point has shifted by 100%. Then: 1. What becomes the measurement range of the instrument? (Additional points will be given for a correct calculation process or detailed explanation)
100–200 KPa or -100–0 KPa. Zero shift, with unchanged range.
The measurement range of the gauge actually remains unchanged; only the counting range has changed to 100–200 KPa. Since the zero shift is 100%, that is, the zero point becomes 100 and the maximum range becomes 200. The answer the author might need is 100–200 KPa. Right?
In the case of positive migration, the measurement range is 100 kPa to 200 kPa； Negative migration: -100kPa~0
Positive migration: Measurement range is 100 kPa to 200 kPa； Negative migration: -100kPa~0
Transferring a differential pressure transmitter does not change the range; it only shifts the range as a whole, either in the positive or negative direction. Positive migration: 100–200 kPa, Negative migration: -100–0 kPa
The measurement range of the gauge actually remains unchanged; only the counting range has changed to 100–200 KPa. Since the zero shift is 100%, that is, the zero point becomes 100 and the maximum range becomes 200. The answer the author might need is 100–200 KPa. Right?
100–200 KPa or -100–0 KPa. Zero shift, with unchanged range.
The measurement range becomes 100–200 KPa, with a resolution of 100 KPa