Quick electtics question....

[essjay]

Got myself a smart little thermometer from farnell that I'm fitting to the 1150.

http://uk.farnell.com/lascar/emt-1900/dpm-lcd-3digit-thermometer/dp/9932720?_requestid=115768

Wiring up an external proble also. My question is - how do you protect something like this with a fuse that only draws 1mA? I can't find any mA blade fuses anywhere (and presume they don't exist) and any of the glass tube ones I seem to find are rated for 240VAC. Would the AC ones work with the DC voltage of the bike?

 

[littleredrooster]

Voltage doesn't matter. Just select the correct current rating.

 

[GlynnJ]

Does it work?

essjay

Can you give us an update on your thermometer fixing? Does it work? Is it waterproof? Where did you mount it? Any pics?

Cheers

GJ

 

[essjay]

essjay

Can you give us an update on your thermometer fixing? Does it work? Is it waterproof? Where did you mount it? Any pics?

Cheers

GJ

It works well. I did wire up an external thermister/thermocouple/sensor (whatever they are called) but that didn't seem to work too well. So I took that out of the loop and it now working on it's internal sensor.

I possibly didn't mount it in the ideal location, on the handlebars, as it can pickup heat from the engine and possibly wind chill. The main reason I wanted it was so when I sat on the bike I'd have a good idea of outside temperature and the possibility of ice.

 

[Fanum]

Bearing in mind that the thing's sitting two feet above the right hand pot and two feet behind the oil cooler, it ain't gonna give you anywhere near an accurate figure

(You'll probably see it change a lot in traffic as the windblast rises and falls)

If you want to get a real idea if there's likely to be ice on the road, you're going to have to mount the external sensor again and find somewhere suitable for it.....under the beak maybe, covered by a thick layer of plastic to keep the wind chill factor out of it as much as possible.

I'd suggest that you're setting yourself up for some false confidence in there being no ice on the road where it is which could be dangerous

 

[Trippy]

Hi,

Happy New Year, hope the bikes still going well and best wishes to your dad.

Jim.

 

[essjay]

Bearing in mind that the thing's sitting two feet above the right hand pot and two feet behind the oil cooler, it ain't gonna give you anywhere near an accurate figure

(You'll probably see it change a lot in traffic as the windblast rises and falls)

If you want to get a real idea if there's likely to be ice on the road, you're going to have to mount the external sensor again and find somewhere suitable for it.....under the beak maybe, covered by a thick layer of plastic to keep the wind chill factor out of it as much as possible.

I'd suggest that you're setting yourself up for some false confidence in there being no ice on the road where it is which could be dangerous

Mainly I wanted to know the temperature when I start out a journey, but I totally understand about the inaccurate readings.

I still have the external probe wired so it's just a matter of resoldering it into the loop. I ran the probe under the saddle but I'm not sure is that the best place either.

 

[essjay]

Hi,

Happy New Year, hope the bikes still going well and best wishes to your dad.

Jim.

All well Jim. Only put about 500 miles on it since I got it which is a disgrace really.

Cheers

 

[Fanum]

Mainly I wanted to know the temperature when I start out a journey, but I totally understand about the inaccurate readings.

I still have the external probe wired so it's just a matter of resoldering it into the loop. I ran the probe under the saddle but I'm not sure is that the best place either.

Was just thinking about it.....I think you're right, under the saddle definitely no good.

If I was doing it in an attempt to get the most accurate reading I could, I'd get a tiny tupperware tub or similar, route the external sensor into that via a rubber grommet to keep water out then velcro the thing under the beak.....that's got to be the only place it's not going to receive any heat from the bike itself and having half an inch of still air around it will help remove the wind chill factor a little.......better to read 'under' than 'over' if it's early warning of frost/ice IMO.

Just my 2p's worth

PS However successful you are at getting the right reading, don't ever rely on it.......black ice obviously lingers under trees etc and even if it's +4 degrees, you could still find some unexpectedly

Listen to your tyres....if they go quiet, you're on ice

 

[motobiker]

surely the sensor above/behind the clocks is the easiest with the gadget itself attached to your gps cradle or thereabouts - no wind chill due to the screen and far enough away from the engine (particularly when on the move) not to be affected. Oil cooler the same. any heat from that wouldn't affect the reading when on the move.