dont leave ur DMG in the sun!

[jvillehvac]

My stomach sank when I walked around the house after changing a drain pan on yet another ICP evap. It cleared in 10 minutes.

[shultz440]

Dude that sucks

[qwerty hvac]

I will remember that.

[dandyme]

most screens will do that when they get hot..............


found that out with a digital cps thermometer............

[Edwin73]

I've seen a meter go black like that in an attic once! it was a hot mofo! My meters always get black in the sun tho. If i leave them out while checkin sh or sc, I turn them over so the sun dont shine on the screen.

[Reeferman]

Never had DigiCools do that.

[itsiceman]

:ditto:

On the Digi-Cools

How hot was it that day?

[jvillehvac]

97 when I took the outside temp.

[JWB]

Why all the broken drain pans?

[jim bergmann]

All LCD displays incorporate a LCD fluid in essentially a glass container. This glass is coated with a conductive film. When the circuit board fires a small spark is generated that stimulates the fluid in the glass. The fluid is excited by the high temperatures created by the spark. Just as the high temperature of the spark excites the fluid so will the high temperature of the sun when the display absorbs large amounts of UV radiation or even if the display gets really hot. Typically above 130-140 degrees F. This heat will stimulate the fluid across the entire display causing the display to go black. This will happen to any meter that uses LCD technology. Cold temperatures will also affect the fluid causing the display to slow down. This is common again with any meter using an LCD.

When the LCD is removed from the sun and/or allowed to cool it will go back to normal.

[jpsmith1cm]

All LCD displays incorporate a LCD fluid in essentially a glass container. This glass is coated with a conductive film. When the circuit board fires a small spark is generated that stimulates the fluid in the glass. The fluid is excited by the high temperatures created by the spark. Just as the high temperature of the spark excites the fluid so will the high temperature of the sun when the display absorbs large amounts of UV radiation or even if the display gets really hot. Typically above 130-140 degrees F. This heat will stimulate the fluid across the entire display causing the display to go black. This will happen to any meter that uses LCD technology. Cold temperatures will also affect the fluid causing the display to slow down. This is common again with any meter using an LCD.

When the LCD is removed from the sun and/or allowed to cool it will go back to normal.

Does it cause permanent damage to the LCD?

[jim bergmann]

No, when it cools back down it goes back to normal.

[Fatstogey]

Damn that would suck.

Luckily for me i dont leave anything in the sun. Not even my handtools. UV light degrades any and everything.

Dudes I work with get pissed when i get all pissy at them for setting my tools in the sun. But seriously. Dont set my stuff in the sun. Ill give a dude what for if he pulls my bag out of hte truck and sets it in the sun. Probably one of the quickest ways to piss me off on the jobsite. lol

[Reeferman]

:ditto:

On the Digi-Cools

How hot was it that day?

It was in the high 90's which is rare here. The Yellow Jacket scale I was using turned black so did the Fluke 179 but the Digicools did not. I guess not all will turn black at the same temperature but then again what the frick do I know about this.

[acguytx]

glad to hear they go back to normal, 90s plthh in Texas its 90 at 10pm right now!! I was scared when i saw this but good info and glad to hear its not permanent should it happen,

thanks

[itsiceman]

It was in the high 90's which is rare here. The Yellow Jacket scale I was using turned black so did the Fluke 179 but the Digicools did not. I guess not all will turn black at the same temperature but then again what the frick do I know about this.
Must be but the Digi-Cool LCD is well insulated from surface temps IMO

The 550 being black, so compact and glass over the glass LCD may be what is going to cook it at a lower temp outside during the day.

From the pic it looks like the heat or black out is radiating up from the front cover mostly.