 Cylinder head temperature gauge |
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| barefoot |
 Jan 15 2021, 10:06 AM
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#21
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Senior Member  Group: Members Posts: 1,269 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States 
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QUOTE(FlacaProductions @ Jan 14 2021, 10:07 PM)  as i understand it - and i could be wrong - non-temperature compensated gauges will read out higher as the ambient temperature goes up and lower as it goes down. ie: if your engine temp is (for example) 250 at 72 degrees, a non-compensated display will show 260 at 82. temp-compensated will show 250 no matter the ambient temp. Not true, sorry. Thermocouple based cylinder head temperature gauges use a bimetal construction that generates a voltage if one end is heated (or cooled). Thermocoulpes will measure the temperature DIFFERENCE between the hot end and the other end. Cold junction compensation introduces a measurement at the cold end then does an addition to read the actual temperature at the hot end, not just the difference. i verified mine by placing the hot end in ~ boiling water as a bench test and got 210 degrees. Cooled to room temperature and the gauge read 73, so i know I'm reading actual head temps. Hope this helps |
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| narino |
Jan 15 2021, 03:44 PM
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#22
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Member Group: Members Posts: 231 Joined: 14-August 07 From: Los Angeles, CA Member No.: 8,001 Region Association: None
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QUOTE(aharder @ Jan 14 2021, 08:29 PM) I had a VDO for years and then it failed. I ended up with this one and I've been pleased with it so far. https://discountegauges.com/deg-cylinder-he...10-901-12-12ft/ Aharder - This gauge is nice! Looks a lot like the micro1000 from Aircraft Spruce that Jeff and Mark Henry posted. Does it take any 14mm TC? Or is it a specific connection? Anyone know if the square bezel on the micro1000 can be removed to leave a circular gauge? |
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| 930cabman |
Jan 15 2021, 05:28 PM
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#23
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Advanced Member Group: Members Posts: 3,000 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(narino @ Jan 15 2021, 04:44 PM) QUOTE(aharder @ Jan 14 2021, 08:29 PM) I had a VDO for years and then it failed. I ended up with this one and I've been pleased with it so far. https://discountegauges.com/deg-cylinder-he...10-901-12-12ft/ Aharder - This gauge is nice! Looks a lot like the micro1000 from Aircraft Spruce that Jeff and Mark Henry posted. Does it take any 14mm TC? Or is it a specific connection? Anyone know if the square bezel on the micro1000 can be removed to leave a circular gauge? Agreed, I will be lining up for this one. Thanks for posting |
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| FlacaProductions |
Jan 15 2021, 07:01 PM
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#24
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Senior Member Group: Members Posts: 1,554 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California
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QUOTE(barefoot @ Jan 15 2021, 08:06 AM) QUOTE(FlacaProductions @ Jan 14 2021, 10:07 PM) as i understand it - and i could be wrong - non-temperature compensated gauges will read out higher as the ambient temperature goes up and lower as it goes down. ie: if your engine temp is (for example) 250 at 72 degrees, a non-compensated display will show 260 at 82. temp-compensated will show 250 no matter the ambient temp. Not true, sorry. Thermocouple based cylinder head temperature gauges use a bimetal construction that generates a voltage if one end is heated (or cooled). Thermocoulpes will measure the temperature DIFFERENCE between the hot end and the other end. Cold junction compensation introduces a measurement at the cold end then does an addition to read the actual temperature at the hot end, not just the difference. i verified mine by placing the hot end in ~ boiling water as a bench test and got 210 degrees. Cooled to room temperature and the gauge read 73, so i know I'm reading actual head temps. Hope this helps Perfect, thank you and my apologies. One thing I hate is when untrue/wrong information is spread here and I hate that I'm part of doing so. Thanks for setting me - and the record - straight. |
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| Krieger |
Aug 1 2022, 04:40 PM
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#25
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Advanced Member Group: Members Posts: 4,702 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None
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@Mark Henry did you need to make any modifications to the sensor to get it to fit on your six?
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