Air pressure sensor 0 - 10bar

Hello,

I have a question regarding pressure sensors...

I'm trying to find a sensor to measure the pressure of my working air compressor.
I want to range to be something around 0 - 10bar with an analog output.

When I try to look in the internet i always find very expensive process automatisation sensors.

Once i saw pressure sensors mouted on pcd with a nipple to connect your measure line on it.
I think these will do the trick and aren't that expensive as well!

Does anyone has a links, type or shop for these guys?

Thanks in advance

Best regard

Jazzy Gérard

Something like this http://uk.farnell.com/honeywell-s-c/sscsmnn010bgaa5/sensor-trustability-10bar-5v-sip/dp/1823251 perhaps? Looks like it has a built-in amplifier and analog output.

Mounting the sensor on a PCB and then connecting an air line to it, sounds like a stuff-up waiting to happen.

I’d mount the sensor on the airline and then have an electric wire connecting it back to the PCB.

michinyon:
Mounting the sensor on a PCB and then connecting an air line to it, sounds like a stuff-up waiting to happen.

I'd mount the sensor on the airline and then have an electric wire connecting it back to the PCB.

Once I worked on a sterilizer to clean medical tools with hot steam and there such a sensor was used. placed on the main PCB with the steam line attached to it.

The voltage drop across the cable will always be greater than the loss off pressure in the line and if you mount the sensor on the same height as the vessel measuring in no losses (almost) will occur!

so it can happen

regards

dc42:
Something like this http://uk.farnell.com/honeywell-s-c/sscsmnn010bgaa5/sensor-trustability-10bar-5v-sip/dp/1823251 perhaps? Looks like it has a built-in amplifier and analog output.

looks good on first sight!

I'm going to study the datasheet and see if I can figure out a way to use it!

regards!

this is a very nice series of pressure sensors!

For those who are interested:

analog or digital output (trough I2C)
pressure scale is divided over whole supply voltage range
0-10Bar range
measurement in H2O is also possible.
....

On the playground a library can be downloaded for even more easy use.
http://playground.arduino.cc//Main/HoneywellTruStabilitySSC-HSCPressureSensors

product page

best regards

if you need cheap, open the pressure gauge and put a potmeter on the arrow. otherwise it will cost about 150 euros as yes they are expesnsive.
a PCB sensor will not have the range requested.

When measuring gas pressure (such as air) one should always insure that the sensor is mount ABOVE the pressure tap being measured on the pipe or vessel. This insures that any moisture in the gas will 'self-drain' back to the process being measured. Liquid buildup in sensing lines will add error to the measurement and may cause corrosion for pressure sensors not rated for liquid service. So be sure to mount the pressure sensor (on PCB or remotely mounted) higher then the other end of the sensing line.

Lefty