Interest in a “plug and play” EGT probe kit?
09-30-2013, 05:17 PM
#152
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I want one ferule and screw cap if it is still available..
02-10-2014, 06:46 AM
#154
Bump with a question.
When my engine is cold my EGT gauge reads 70°C, or ~160°F.
This is obviously incorrect, and that is using the K-type calibration table supposed to work with Laust's sensor.
Anyone else getting such an error?
When my engine is cold my EGT gauge reads 70°C, or ~160°F.
This is obviously incorrect, and that is using the K-type calibration table supposed to work with Laust's sensor.
Anyone else getting such an error?
02-11-2014, 01:36 PM
#155
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Instead of going into a lengthy tutorial on thermocouples here, I prefer to refer you to others already on the internet, so there is one from Analog Devices:
http://videos.analog.com/video/12257...-Thermocouple/
Analog Devices also makes a circuit that ensures accurate absolute temperature measurements with a K-type thermocouple. The PDF description can be downloaded from here:
http://www.analog.com/en/content/glp...N0172/fca.html
But let me just add here their introduction to the description which shows the parameters needed to be dealt with for accurate absolute measurements:
The function of the circuit shown in Figure 1 is to provide a high accuracy multichannel thermocouple measurement solution. Achieving a precision thermocouple measurement requires a signal chain of precision components that amplifies the small thermocouple voltage, reduces noise, corrects nonlinearity, and provides accurate reference junction compensation (commonly referred to as cold junction compensation). This circuit addresses all these challenges for measuring thermocouple temperature with better than ±0.25°C accuracy.
I don’t know the design details of the EGT gauges on the market, but will assume that they at least compensate for the cold junction temperature, contrary to a typical data acquisition system.
So what to do?
My recommendation is to find a good low cost K-type thermocouple amplifier (at least with cold junction compensation) and insert that between the (end of the) thermocouple and the input of the data acquisition system.
Just Google “thermocouple amplifier” and make a choice.
I hope this help.
Laust
02-11-2014, 02:35 PM
#156
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What about plug&play sets, can they be bought anywhere?
05-01-2014, 10:10 PM
#157
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It has not gone unnoticed that there is a sporadic interest in my EGT kit, but too many other things had come in the way. So finally I managed to focus on the EGT kit and once more built a small batch and if that gets sold out, I will make another batch shortly thereafter.
Unfortunately my probe supplier in the meantime has raised the probe price by more than $10 and although the mail cost has gone up too I will keep the S&H the same. So the end-cost for the kit will be:
$105 + S&H ($8 domestically, $12 Canada and $ 16 internationally) and there is a 2-year warranty on the probe.
The installation steps are listed in post #65.
Laust
Unfortunately my probe supplier in the meantime has raised the probe price by more than $10 and although the mail cost has gone up too I will keep the S&H the same. So the end-cost for the kit will be:
$105 + S&H ($8 domestically, $12 Canada and $ 16 internationally) and there is a 2-year warranty on the probe.
The installation steps are listed in post #65.
Laust
07-29-2015, 09:24 PM
#159
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just remembered this, bump. Got my money back from Front Range Fabrications and will be running stock headers for a while. looking for an EGT plug and play solution.
11-01-2015, 02:56 PM
#164
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PM sent, did you get it?
11-03-2015, 01:59 PM
#165
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