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Eyourlife Universal 200PSI Pressure Transducer Sender Solenoid for Oil Fuel Gas Air Water #C3

3.1 out of 5 stars 21 customer reviews
| 8 answered questions

Price: $59.99
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  • Performance Guarantee pressure range: 3 MPA
  • Works for oil,fuel,diesel,gas,water,air pressure
  • Package Include: 1 X Pressure Transducer
  • Output: 0.5V – 4.5V linear voltage output
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Product Information

Size:200

Technical Details

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Product Description

Size:200

Specifications:
Supply voltage:5 VDC
Output voltage :0.5 ~ 4.5 V
Working pressure :0 ~ 1.38 MPA
Performance Guarantee pressure range:3 MPA
Burst Pressure : 5 MPA
Overall accuracy :1% FS
Long-term stability : 0.2% FS / year
Works for oil,fuel,diesel,gas,water,air pressure
Operating temperature: -40 ~ 125 degree Centigrade
Storage temperature : -40 ~ 130 degree Centigrade
Package Include: 1 X Pressure Transducer


Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 30 Verified Purchase
Updated a few days after usage began:

Sensor failed, and now reports erroneous readings, generally notably negative pressure in open air. Sensor was connected to tap water at about 10PSI.

Junk. Do not buy.

------------
Performs exactly as expected.

When powered at 5.00V (red), output (yel) was 0.513V at ambient pressure of 29.85inHg. Output is ratiometric with supply voltage. Current consumption was 2.07mA. Note that this sensor responds to absolute, not relative pressure, so barometric pressure changes will affect it when in open air.

If you're an Arduino user, you'll get excellent results powering this from AREF yielding a resolution of 30 PSI / (0.8 x 1024) --> 0.037PSI.

Supplied cable comes with short lengths of wire -- my photos show extensions added for Arduino usage. Note the shrink-wrap also over the outside jacket as that cable has an exposed shield layer.

Included image shows extra fittings added for connection to 1/8" irrigation tubing. Sensor has 1/8" male NPT fitting.

Aurduino code follows:

/*--------------------------------------------------------------*/
/* Water pressure sensor. Ranges 0.5-4.5V for 0-30PSI. */
/*--------------------------------------------------------------*/

int water_pressure_ticks;
int water_pressure_10mPSI; // pressure in 0.01 PSI units

#define PSI_0_MV 500 // millivolts at 0.0 PSI
#define PSI_30_MV 4500 // millivolts at 30.
Read more ›
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Size: 30 Verified Purchase
Out of the package with exactly 5V applied to red/black yellow is at .405V completely unloaded.

If this was sensing absolute pressure as another reviewer suggested I'd expect a reading somewhere near my absolute pressure today (29.95 inHg altimeter setting @ 980' -> 28.9 inHg absolute) of about 14 PSI. On a 30PSI scale with an output range from .5V (0PSI) to 4.5V (30PSI) this should come in somewhere around 2.5V. If this were the case its reading slightly negative absolute pressure (not a likely condition) right out of the package.

I'm guessing from this reading this is gauge pressure (the measurement cell is open to the atmosphere). I attached it to a couple of mechanical air pressure meters I have and a bicycle pump on a manifold -- when the meters show around 30psi I get an output voltage of 4.64V. This does seem to approximate the 30PSI stamped on range, 0PSI (gauge) == .39V and 30PSI == ~4.64V.

I'm going to try to use this to measure pressure on a swimming pool filter system so absolute accuracy isn't all that important, just repeatability. If it survives a test on street water pressure for couple of weeks I'll buy a few more (and some spares) to complete the project.

The schematic in this listing appears unrelated to this device (I *wish* it had a digital output).

--------------

Update after a few weeks deployed:

The 30PSI senders *all* failed (either to ground or +V) after about 2 weeks under pressure. The pressure is about half the rated pressure, maybe there's a startup transient when the pumps start (this is in a pool filter system) that burst them but on a mechanical guage I don't see any pulse. I'm trying an 80PSI now but at this point I'd say the 30 PSI units are either defective or not designed to run in water at 18PSI continuously.

Attached a picture of one of the failed sensors as installed (a failed one).
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Size: 30 Verified Purchase
Stopped working after a week. I was using it for coolant pressure of less than 16psi, but it did run up to about 200°F. This may have been outside of the specified temp rating, which I could not find at the time.
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Size: 30 Verified Purchase
I put the ISSPRO fuel pressure gauge on my 2001 Ram 2500 a couple years ago. Recently the gauge began to go strait to 30psi and just park there. ( It was normally around 12psi ) That original transducer was always showing about 5psi lower than the liquid test gauge. I installed this new universal transducer yesterday. My truck gauge is now showing 17psi.
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Size: 80 Verified Purchase
Put this on my cabin water system to be able to monitor voltage to an analog input on my security system. Allows me to detect even the slightest water leak in the system. For the cost to be able to monitor pressure on a continuous basis, this is a very low cost for a transducer which seems to be pretty well built.
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Size: 30 Verified Purchase
I have purchased two of these sensors. One failed within a week of use. A second failed within two months.

Both were used only with water at 5-10psi. No over pressure events. Room temperature.

Expect to pay 20 bucks a month to replace this sensor.
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Size: 80 Verified Purchase
Works good for air so far. I bought a bunch of these and they seem to read pretty consistently. I was able to read the pressure in Arduino with this code:

#define PSI_0_MV 95 // millivolts at 0.0 PSI
#define PSI_100_MV 888 // millivolts at 100.0 PSI

int volts = analogRead(PRESSURE_SENSOR_PORT);
int psiRead = map(volts, PSI_0_MV, PSI_100_MV, 0, 100);

Serial.println(psiRead);

To adapt the above code for another pressure range, just measure the MV readings at 0psi and the upper bound PSI of your sensor, and update the PSI_0_MV and PSI_XXX_MV defines.
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