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Thread: Thermocouples.
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25-06-2005, 01:24 PM #1
Thermocouples.
Hello all.
Just wondering what everyone uses for measuring pipe temps for super heat/sub cool measurements.
I use the K type thermocouple that comes supplied with my Fieldpiece meter and tape it to the pipe with electrical tape.
Was thinking of buying a pipe clamp thermocouple. They are quite expensive are they really worth it?
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25-06-2005, 03:43 PM #2
Re: Thermocouples.
I use an electronic thermometer with two K type thermocouples.
Can easily see the difference.
I use a copper stripe like the one that hold the phial of the TXV,
leaves my hands free.
Chemi
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25-06-2005, 07:28 PM #3
Re: Thermocouples.
We do use a fluke 2 channel meter with memory for highest en lowest reading (good for checking thermostat difference)
Got 2 K type wire sensors. these sensors give a extreem quick reaction
1 k type airprobe
1 k type surface probe
2 k type pipe klamps.
The pipe clamps are used very often for checking expansionvalve overheat, discharge temps, suction temps.
I also posses a infrared probe, I do not tend to use is very often because it is affected bij product color, light etc, I do tend to use it when working on packs to check the temp of the compressor heads.
The actual reading is not imporant, but it gives a fair indication if there are broken or bad sealing valves in the compressor.
Victor
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25-06-2005, 07:39 PM #4
Re: Thermocouples.
Mr, TEMP-
I got one k and one j sensor thermometer both are equaly good and cheap compared with PT100 sensor thermometer . one digitial thermometer got 6 selector points with 6 k type thermocouple wire are conected which can be
sticked with gumed tape to the pipe or surface to check 6 points off the chambers all the thermocouples are of twisted wire type.
beni joseph
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26-06-2005, 02:04 AM #5
Re: Thermocouples.
We have 20 Fluke 54 dual input digital thermometers with K type probes that are for our student to use in their training. I also have a touch probe and an infrared that I use to check their work.
100% is possible 100% of the time
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26-06-2005, 07:09 AM #6
Re: Thermocouples.
Is it possible to see some pics of the equipment , if u have a digital camera handy
Any opinions, statements and facts expressed in this message do not constitute legal advice in any shape or form and is given for a general outlook in nature. You are advised to seek appropriate and specific professional assistance from a regulated and authorised advisor for definitive advice.
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26-06-2005, 11:09 AM #7
Re: Thermocouples.
Here you go Aiyub.
I was looking at the dual temperature head which will fit my meter,but it doesnt come with pipe clamp probes.
www.fieldpiece.com
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26-06-2005, 08:00 PM #8
Re: Thermocouples.
Hi Abe,
Here is the Fluke, good choice.
Chemi
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26-06-2005, 10:48 PM #9
Re: Thermocouples.
I definately need one!!! Thx
Any opinions, statements and facts expressed in this message do not constitute legal advice in any shape or form and is given for a general outlook in nature. You are advised to seek appropriate and specific professional assistance from a regulated and authorised advisor for definitive advice.
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28-06-2005, 11:16 AM #10
Re: Thermocouples.
Originally Posted by Temprite
When I get to a job I just use a couple of ties on each thermocouple to attach it to the pipe. One right next to the bead and another about 1/4" down the thermocouple wire to stop it moving around. If I am worried about airflow influencing my readings a bit of 3mm foam tape stuck over it helps.
I also found a good bit of info on the fieldpiece website somewhere once. It suggests stripping about 3/4" of insulation from the thermocouple to get more metal in contact with the pipe and speeds up the response time.
http://www.fieldpiece.com/tech-artic...emperature.htm
Cheers oz
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01-07-2005, 11:33 AM #11
Re: Thermocouples.
Ozairman.
I usually work with pipes max 1 1/4".
Today I made a pipe clamp thermocouple from an old k type bead that I had.Compared it to the method of taping it to the pipe it works just as good.
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