In a 4-20 mA measurement system, what does LRV stand for?

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Multiple Choice

In a 4-20 mA measurement system, what does LRV stand for?

Explanation:
LRV stands for Lower Range Value. In a 4-20 mA loop, the transmitter maps the measured variable from the lower end of its range to a current between 4 and 20 mA. The lower end of that range corresponds to 4 mA, while the upper end corresponds to 20 mA. Using 4 mA as the minimum avoids zero current, which helps with signal integrity and fault detection. The other terms listed aren’t standard descriptors for this context, as they don’t refer to the calibrated endpoints of the measurement span.

LRV stands for Lower Range Value. In a 4-20 mA loop, the transmitter maps the measured variable from the lower end of its range to a current between 4 and 20 mA. The lower end of that range corresponds to 4 mA, while the upper end corresponds to 20 mA. Using 4 mA as the minimum avoids zero current, which helps with signal integrity and fault detection. The other terms listed aren’t standard descriptors for this context, as they don’t refer to the calibrated endpoints of the measurement span.

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