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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Irreversible temperature sensitive labels
For long term indication of in-service maximum temperatures
Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#2
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Irreversible temperature sensitive labels
N Cook wrote in message
... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ I may make my own rough indicators. So a few common tested materials Photocopier toner wiped onto paper label starts fusing about 90 degrees C White soap rubbed onto paper label turns brown at about 160 degrees. From a selection of those small circular sticky backed paper circles of different colours, the blue one changed most to very dark blue at about 200 deg C and flourescent green one became ordinary green. Mylar plastic sheet starts crinkling up at 120 deg C , totally melting by 180 deg. Any other ideas ? -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#3
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Irreversible temperature sensitive labels
In article ,
"N Cook" wrote: For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ Don't remember anything about range and precision, but Burt Rutan drew closely spaced parallel lines in various spots on the leading edges of SpaceShipOne to test heat levels. He used special wax crayons of different colors that melt at different temperatures. I thought it was a damn cheap and damn clever method of doing some sophisticated temperature monitoring. |
#4
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Irreversible temperature sensitive labels
"N Cook" wrote in message ... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ A simple Google search for crayon temperature uk found this site. There were others. http://www.omega.co.uk/shop/subsecti...rature&all =1 Charlie |
#5
Posted to sci.electronics.repair
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Irreversible temperature sensitive labels
N Cook wrote in message
... N Cook wrote in message ... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ I may make my own rough indicators. So a few common tested materials Photocopier toner wiped onto paper label starts fusing about 90 degrees C White soap rubbed onto paper label turns brown at about 160 degrees. From a selection of those small circular sticky backed paper circles of different colours, the blue one changed most to very dark blue at about 200 deg C and flourescent green one became ordinary green. Mylar plastic sheet starts crinkling up at 120 deg C , totally melting by 180 deg. Any other ideas ? One other material I'd overlooked is thermal paper for fax or till roll -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#6
Posted to sci.electronics.repair
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Irreversible temperature sensitive labels
N Cook wrote in message
... N Cook wrote in message ... N Cook wrote in message ... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ I may make my own rough indicators. So a few common tested materials Photocopier toner wiped onto paper label starts fusing about 90 degrees C White soap rubbed onto paper label turns brown at about 160 degrees. From a selection of those small circular sticky backed paper circles of different colours, the blue one changed most to very dark blue at about 200 deg C and flourescent green one became ordinary green. Mylar plastic sheet starts crinkling up at 120 deg C , totally melting by 180 deg. Any other ideas ? One other material I'd overlooked is thermal paper for fax or till roll -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ The till roll paper I tried started to go blue at 75 deg C , so an assorment of punched out paper dots with appropriate coatings/impregnations and high temp glue should give a reasonable idea of max temps |
#7
Posted to sci.electronics.repair
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Irreversible temperature sensitive labels
N Cook wrote:
N Cook wrote in message ... N Cook wrote in message ... N Cook wrote in message ... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ I may make my own rough indicators. So a few common tested materials Photocopier toner wiped onto paper label starts fusing about 90 degrees C White soap rubbed onto paper label turns brown at about 160 degrees. From a selection of those small circular sticky backed paper circles of different colours, the blue one changed most to very dark blue at about 200 deg C and flourescent green one became ordinary green. Mylar plastic sheet starts crinkling up at 120 deg C , totally melting by 180 deg. Any other ideas ? One other material I'd overlooked is thermal paper for fax or till roll -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ The till roll paper I tried started to go blue at 75 deg C , so an assorment of punched out paper dots with appropriate coatings/impregnations and high temp glue should give a reasonable idea of max temps You can buy ready made temp sensitive labels you know. Ron(UK) |
#8
Posted to sci.electronics.repair
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Irreversible temperature sensitive labels
In message , "Ron(UK)"
writes N Cook wrote: N Cook wrote in message ... N Cook wrote in message ... N Cook wrote in message ... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ I may make my own rough indicators. So a few common tested materials Photocopier toner wiped onto paper label starts fusing about 90 degrees C White soap rubbed onto paper label turns brown at about 160 degrees. From a selection of those small circular sticky backed paper circles of different colours, the blue one changed most to very dark blue at about 200 deg C and flourescent green one became ordinary green. Mylar plastic sheet starts crinkling up at 120 deg C , totally melting by 180 deg. Any other ideas ? One other material I'd overlooked is thermal paper for fax or till roll -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ The till roll paper I tried started to go blue at 75 deg C , so an assorment of punched out paper dots with appropriate coatings/impregnations and high temp glue should give a reasonable idea of max temps You can buy ready made temp sensitive labels you know. Ron(UK) Do a search on temp-spy+adhesive. There are several results. http://www.tequipment.net/WahlTS3-232C.html http://www.auriema.com/wahl-temperature-products.php Ian. -- |
#9
Posted to sci.electronics.repair
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Irreversible temperature sensitive labels
Ian Jackson wrote in message
news In message , "Ron(UK)" writes N Cook wrote: N Cook wrote in message ... N Cook wrote in message ... N Cook wrote in message ... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ I may make my own rough indicators. So a few common tested materials Photocopier toner wiped onto paper label starts fusing about 90 degrees C White soap rubbed onto paper label turns brown at about 160 degrees. From a selection of those small circular sticky backed paper circles of different colours, the blue one changed most to very dark blue at about 200 deg C and flourescent green one became ordinary green. Mylar plastic sheet starts crinkling up at 120 deg C , totally melting by 180 deg. Any other ideas ? One other material I'd overlooked is thermal paper for fax or till roll -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ The till roll paper I tried started to go blue at 75 deg C , so an assorment of punched out paper dots with appropriate coatings/impregnations and high temp glue should give a reasonable idea of max temps You can buy ready made temp sensitive labels you know. Ron(UK) Do a search on temp-spy+adhesive. There are several results. http://www.tequipment.net/WahlTS3-232C.html http://www.auriema.com/wahl-temperature-products.php Ian. -- "Model TS3 covers a narrow range of approximately 20°C with 3 indicators." I'm already perfectly aware of such labels but my OP referred to a much more extended range of temps, which I've yet to see examples of or be pointed to. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#10
Posted to sci.electronics.repair
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Irreversible temperature sensitive labels
In message , N Cook
writes Ian Jackson wrote in message news In message , "Ron(UK)" writes N Cook wrote: N Cook wrote in message ... N Cook wrote in message ... N Cook wrote in message ... For long term indication of in-service maximum temperatures Anyone know of (UK preferably ) supplier of labels with more range and less precision than the likes of the usual 5 temperatures in small ranges like, 116-138 degC 171-193 degC 204-260 degC say 5 temperature range of 70,100,130,160,200 on single labels -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ I may make my own rough indicators. So a few common tested materials Photocopier toner wiped onto paper label starts fusing about 90 degrees C White soap rubbed onto paper label turns brown at about 160 degrees. From a selection of those small circular sticky backed paper circles of different colours, the blue one changed most to very dark blue at about 200 deg C and flourescent green one became ordinary green. Mylar plastic sheet starts crinkling up at 120 deg C , totally melting by 180 deg. Any other ideas ? One other material I'd overlooked is thermal paper for fax or till roll -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ The till roll paper I tried started to go blue at 75 deg C , so an assorment of punched out paper dots with appropriate coatings/impregnations and high temp glue should give a reasonable idea of max temps You can buy ready made temp sensitive labels you know. Ron(UK) Do a search on temp-spy+adhesive. There are several results. http://www.tequipment.net/WahlTS3-232C.html http://www.auriema.com/wahl-temperature-products.php Ian. -- "Model TS3 covers a narrow range of approximately 20°C with 3 indicators." I'm already perfectly aware of such labels but my OP referred to a much more extended range of temps, which I've yet to see examples of or be pointed to. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ Have you clicked on 'Catalog'? Whal seem to have a fair selection of ranges. Ian. -- |
#11
Posted to sci.electronics.repair
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Irreversible temperature sensitive labels
N Cook wrote:
"Model TS3 covers a narrow range of approximately 20°C with 3 indicators." I'm already perfectly aware of such labels but my OP referred to a much more extended range of temps, which I've yet to see examples of or be pointed to. http://www.omega.com/toc_asp/sectionSC.asp?section=F&book=temperature -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
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