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Yup that's fine, mostly all high end temp probes are stainless.
Depends on what type of stainless steel.
I'm curios, why those "expensive" brands like Neptune only offer plastic made probes?
Also, all temperature controllers that I've seen have plastic probes.
For very long submersion (years), I would put my probes into normal flexible tygon tubing just big enough to fit, and doubled it over with the ends above water so the probes stayed dry. I had both stainless steel and plastic thermistor probes fail after long continuous contact with water.
I was thinking something like that, I was thinking to put the probe in a PVC housing so to test only the surrounding temperature inside the PVC housing, I don't know if there's a huge difference in temperature from the PVC and the water surrounding it.
I was also thinking using a laser beam to read the temperature of the water in the sump.
If you do not have fast changing in the temperature - it will works wellI was thinking something like that, I was thinking to put the probe in a PVC housing so to test only the surrounding temperature inside the PVC housing, I don't know if there's a huge difference in temperature from the PVC and the water surrounding it.
I was also thinking using a laser beam to read the temperature of the water in the sump.
Laser? You mean infrared sensor?
If you do not have fast changing in the temperature - it will works well
If you will use a infrared sensor for the temperature in your sump - be sure that you make a black area on the sumps outer wall. Measure against that black area - you can´t use a reflecting surface if you use a infrared sensor. If you do - you will also read the reflecting infrared radiation from other sources. Very few people know this and wrong readings with these type of equipment is very common - as we say in Sweden - it is working days food
sincerely Lasse
Yes. It's all about having a low emissivity surface to measure. The fact is there are no surfaces with perfect emissivity, making infrared temperature readings inherently inaccurate. It's still the best practice to use immersion probes.If you do not have fast changing in the temperature - it will works well
If you will use a infrared sensor for the temperature in your sump - be sure that you make a black area on the sumps outer wall. Measure against that black area - you can´t use a reflecting surface if you use a infrared sensor. If you do - you will also read the reflecting infrared radiation from other sources. Very few people know this and wrong readings with these type of equipment is very common - as we say in Sweden - it is working days food
sincerely Lasse
IMO - it will not give a correct reading - the water surface will reflect all IR radiation in the cabinet.With infrared I was thinking to put it on the top my sump and read to the bottom of the sump, something like this
--------------------------
IR SENSOR
|
|
\/
SUMP
--------------------------
Seeing from top to bottom
Yes. It's all about having a low emissivity surface to measure. The fact is there are no surfaces with perfect emissivity, making infrared temperature readings inherently inaccurate. It's still the best practice to use immersion probes.