winsen me2 o2

İ can not use winsen me2 o2 sensor without its kit.My a sensor broken and it is expensive. i tryed to use with lm 2904 op-amp but i didnt use it . pls help.

sensor link ME2-O2-Ф20 Oxygen Sensor--Winsen
sensor with its kit https://www.seeedstudio.com/Grove-Oxygen-Sensor-ME2-O2-2-p-1541.html

İ am no using winsen me2 o2 sensor without its kit.My a sensor broken and it is expensive. i tryed to use with lm 2904 op-amp but i didnt use it . pls help.

I don’t really understand what you’re trying to tell us. I understand that you’re trying to use the ME2 sensor without the Grove breakout board because you think you get it cheaper. The sensor itself sells for about $40-$50 (depending on source) if you don’t buy in the thousands, so the Grove board for about $54 is not really expensive.

I understand that you tried to use the bare sensor with an LM2904 op-amp but you broke it. Maybe I understood something wrong but may I ask to formulate a concrete question and explain in a bit more detail what exactly your problem is?
If you still want to use it with your own op-amp, post the schematics of your own board!

ty for ur answer

yeah, u understant me right.

this pic. show us Grove sensor circuit diagram. i did same circuit but instead of OPA333DBV . ı used lm2904. but sensor was not work smoothly.

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this pic. show us Grove sensor circuit diagram. i did same circuit but instead of OPA333DBV . ı used lm2904. but sensor was not work smoothly.

Who told you that you can replace the op-amp by any general purpose op-amp?

rctr, which nominal of resistor connected parallel to sensor? See nominal in the sensor datasheet :-))
Another version - check voltage in millivolt at the input opamp. I have big doubt - OPA have few megaohm resistance at input , because ? See TL71/72/74 low-noise opamp-but know -the market overload chinese fake opamps.fet at input
Check opamp waveforms at oscilloscope from 15khz to 300-400khz -if you see square waveforms of signals -know, that its fucking chinese fake!!!
But in my expirience quality of oxygen sensor - worst plays from casino"Ali
**' or directly from manufacturer.
I dont recommend you buy Teledyne R17 -this sensor can not live longer than 6 monts,strong degradation in the package and then data from this sensor have multual mistakes and show anything but not percentage of the oxygen

pylon:
Who told you that you can replace the op-amp by any general purpose op-amp?

because OPA333DBV is special op-amp and i cant buy it quicly. i used to what i have , thats lm2904 and op07c. these op- amps can work in milivolt .

endovo:
rctr, which nominal of resistor connected parallel to sensor? See nominal in the sensor datasheet :-))
Another version - check voltage in millivolt at the input opamp. I have big doubt - OPA have few megaohm resistance at input , because ? See TL71/72/74 low-noise opamp-but know -the market overload chinese fake opamps.fet at input
Check opamp waveforms at oscilloscope from 15khz to 300-400khz -if you see square waveforms of signals -know, that its fucking chinese fake!!!
But in my expirience quality of oxygen sensor - worst plays from casino"Ali
**' or directly from manufacturer.
I dont recommend you buy Teledyne R17 -this sensor can not live longer than 6 monts,strong degradation in the package and then data from this sensor have multual mistakes and show anything but not percentage of the oxygen

ty for ur answer.