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+ and - input/output question


johndeverill

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Hi,

I've got a quick question and one I'm sure you'll all know........whilst falling about the place laughing!! :)

I've got a pressure transducer and an LCD panel meter.

The pressure transducer has a + and a - Vout.

The LCD display has a + and a - Vin.

Both are 12VDC.

As I am new to electronics I understand Vin/Vout and +/- but what does it mean if there are two inputs/outputs?

Would the above be to measure -/+ pressures and hence the -/+Vin on the LCD.

I also want to use the output signal from the transducer to activate a relay...would I just use Vout+?

Many thanks in advance

John

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You are asking a question about a device but you have not given anyone a clue as to what it is, other than a pressure transducer. There are thousands and they have lots of differences. Some have Analog voltage outputs and even these have different ranges. Then there are the current outs. There are a few of these. Next, there are the digital output types. These are used to talk directly to a microcontroller.
How about a part number? If you do not have a part number, perhaps someone can recognize what you have by the schematic used with it.

MP

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Hi,

If anyone could help on this I would be eternally grateful as it is the last stage prior to my circuit being complete. Essentially I want the output signal/voltage of the tranducer to go to a panel meter. The transducer has a + and a - output connection and reads 330mV full scale output at 30psi. The panel meter has + and - input terminals. Can I just connect the + output of the transducer to the + input of the panel meter to read the voltage produced by the transducer on the panel meter LCD display?

Many thanks

John

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