Selsis differential pressure transmitter for level measurement
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It seems I keep posting requests for help; recently I noticed that the supply voltage of several differential pressure transmitters used to measure the level of liquid in the steam drum is less than 24V. The nameplate indeed specifies 15–45V, but why do transmitters from other brands maintain a stable voltage of 24V? Will the fact that the Thersys transmitter cannot reach 24V have an impact on its use? PS: I casually tested two differential pressure transmitters; before disconnecting the wire for #1, the voltage was 21.5V, and after disconnecting it, it was 18.5V! 2# is more or less the same; the voltage isn’t consistent before and after unthreading, but it still doesn’t reach 24v! Hope experts can answer!
If the supply voltage varies within a certain range, it should have no impact on the measurement accuracy.
Not bad, I’ve learned it. Thanks for sharing, you’re a good person
It’s okay if the voltage isn’t 24; as long as it’s within the voltage range indicated on the meter； I once encountered a situation where, due to an error in the configuration of one of the instruments’ settings, the voltage supplied to the instrument decreased significantly, preventing it from functioning properly.
I’ve never heard of this brand, but generally, as long as the voltage is within the specified range, it shouldn’t affect usage.
Well, our factory has a wide variety of transmitters: Yokogawa, Rosemount, Baoding Huaqing, Sercos, Oscillocum; there seems to be also a brand called Chuanyi, and for desulfurization applications, there’s E+H