Tempgun?

[Antony]

Saw a few people using these at Teesside last weeked, but wondered where to get one from and how much?

Cheers, waiting on line with anticipation!

[flick5848]

I get the feeling you have seen people using the large gun shaped temp guns but they are quite expensive so this might be a cheaper alternative

http://cgi.ebay.co.uk/Non-Contact-In...QQcmdZViewItem

Might get one myself

Chris

[mole2k]

We had quite a bit of fun with one of the laser ones at the last race meeting measuring the temperature of some of the racers mid race seeing how when they start racing really close to other drivers their temperature increases!

[mark christopher]

Originally Posted by flick5848

I get the feeling you have seen people using the large gun shaped temp guns but they are quite expensive so this might be a cheaper alternative

http://cgi.ebay.co.uk/Non-Contact-In...QQcmdZViewItem

Might get one myself

Chris

use temp guns allot in ic on road, had one of those it was ok, for general temp measuring

[NeilD]

Originally Posted by flick5848

I get the feeling you have seen people using the large gun shaped temp guns but they are quite expensive so this might be a cheaper alternative

http://cgi.ebay.co.uk/Non-Contact-In...QQcmdZViewItem

Might get one myself

Chris

Thats the one i use and i've had no problems with it.

[Northy]

They are actually quite inacurate

G

[NeilD]

I've heard this before but when you compare two together they read the same.

[Northy]

So they're both inacurate?

G

[Lee]

Do two equally innacurate guns make each other accurate

Something to ponder over

All i know is when the solder is splattered all over the inside of the endbell, its too hot!!!

[rcracer]

ive got one of these http://www.maplin.co.uk/Module.aspx?...METER&doy=24m6

what are you actualy using them for

[NeilD]

What i'm trying to say is if they were both inaccurate then wouldn't they give different readings?

[Northy]

Not really, if you measure something that is 100 degrees with both of them but they read 90 degrees then they both read the same but are inacurate.

G

[rcracer]

Originally Posted by Northy

Not really, if you measure something that is 100 degrees with both of them but they read 90 degrees then they both read the same but are inacurate.

G

strange but true

[mark christopher]

Originally Posted by Northy

They are actually quite inacurate

G

100% agree thats why i put general temp measuring, mine is a exergen dx501 not cheap but very acurate

northy is correct in that they are out of calibration, though thay may all read the same, reason i got rid of mine was kept cooking engines

[alrg500]

Most of the cheaper ones have emistivity set to approx 100 this means they will only be accurate when pointed at a matt black surface, more expensive ones have adjustable emistivity meaning they can be set to be accurate on all materials but you need to know the emistivity (reflectance) setting of the surface you are measuring.
Do not believe the specs quoted by the manufacturers these are under non real conditions ie being pointed into a black body sources which are used for calibrating them and at a certain distance from the source.
In the real world they are good for comparison readings but not great for very accurate readings.
If you want a more accurate reading measure the temperature of what you want with a thermocouple&Display then adjust the emisitivity (presuming you have a more expensive one) to make the IR Gun read the same you can then use that emisitivity setting each time to get a more accurate reading (also make a note of the distance as that has an effect as well.

[spuddy]

or get one with a surface temperature tip.
we use them at work to test superheat in refrigeration systems.

[Northy]

Originally Posted by alrg500

Most of the cheaper ones have emistivity set to approx 100 this means they will only be accurate when pointed at a matt black surface, more expensive ones have adjustable emistivity meaning they can be set to be accurate on all materials but you need to know the emistivity (reflectance) setting of the surface you are measuring.
Do not believe the specs quoted by the manufacturers these are under non real conditions ie being pointed into a black body sources which are used for calibrating them and at a certain distance from the source.
In the real world they are good for comparison readings but not great for very accurate readings.
If you want a more accurate reading measure the temperature of what you want with a thermocouple&Display then adjust the emisitivity (presuming you have a more expensive one) to make the IR Gun read the same you can then use that emisitivity setting each time to get a more accurate reading (also make a note of the distance as that has an effect as well.

This man speaks the truth, thats what I wanted to say but couldn't be bothered typing it all out!

G

[super__dan]

To be fair though, the little cheap one I have is both more accurate and more repeatable than my thumb and causes me to swear less as and when the motor is hot. For £15 they are a helpfull gadget for anyone that runs brushless in particular. I can't comment on IC though!

[vader]

Gran Deenwood?

[mark christopher]

Originally Posted by super__dan

To be fair though, the little cheap one I have is both more accurate and more repeatable than my thumb and causes me to swear less as and when the motor is hot. For £15 they are a helpfull gadget for anyone that runs brushless in particular. I can't comment on IC though!

Dan that was the point i was making, for what you want they are fine, but for what i need em to do i dont trust em no more, but your not going to damage your motor by checkin it where we tune engines to a temp
try pointing it at a ice cube and jug of boiling water to check it!