| Tip shape |
Fine thermocouple |
The
fine Thermocouple tip is ideally suited to temperature measurement
of very small components, with a fast response time and high
accuracy. The tip can be fixed using an Ag past, and is therefore
recommended as an OEM product not as a reusable Thermocouple.
Standard tip dia is 25 Microns with 13 micron dia for special
applications. |
| Sheet thermocouple |
The sheet
thermocouple is designed to measure surface temperature, it can
offer high strength, high accuracy and a fast response time.
We
would recommend using single sided, black capton tape to secure the
thermocouple as this will absorb the Infra-red energy.
photo |
| Fine and Sheet thermocouple |
Rolling milled fine thermocouple 25 or 50
micron.
25micron dia. 10 micron thick 50micron dia. 20 micron thick
Quick response and high accuracy.
Recommended for applications such as silicon
wafer. |
| Multi purpose thermocouple |
Available with
100 or 200 micron wire, this thermocouple has a wire shaped tip not
a ball as used in some thermocouples. This gives a faster response
time and greater accuracy.
This
is a very robust thermocouple, recommended for applications were the
temperature is not changing rapidly, the thermocouple tip can be
fixed using solder or ceramic bonding into the substrate being
measured.
|
| Insulation |
Glass |
Glass insulation
will operate at a constant temperature not exceeding 250 ｰC
temperatures up to 300ｰC would be acceptable only for short periods
of time.
Glass
insulation is very flexible, however, it may not be suited to clean
room applications. Detail |
| Teflon |
Maximum operating temperature for Teflon is 200ｰC we would
recommend Teflon for measuring the temperature of liquids,
chemicals, and any application where it would be open to the outdoor
elements. Detail |
| Ceramic |
Suitable for
applications where high temperatures are likely, for example ovens,
furnaces, rocket / jet engine exhaust ports etc.
However this material would not be suitable for any applications
involving water, as the ceramic bond will dissolve in water
Detail |
|
Insulated wire diameter. |
200micron |
200
micron wire would be used for mechanical strength is a concern and
would be recommended for any application where the cable would be
longer than 2 meters, to minimise interference by external
electromagnetic wave. Detail |
| 100micron |
For example a
glass insulated 100 micron wire would have very good properties for
bending around a small radius however; it would be more susceptible
to external interference from any electromagnetic waves.
Not
recommended for cable lengths exceeding 2 meters Detail |
| Option |
Solder coat Tip |
This
type of thermocouple is easy to attach in applications where a
solder joint is possible. |
| one side black body |
Sheet thermocouples can be attached to the substrate by capton tape,
we recommend our one sided black body thermocouple, fitted with
capton tape, the black body can absorb the infra red energy
resulting in a faster response time. photo |
| Connector |
For
easy connection to data logger or monitoring equipment |
| Insulation on bare wire& tip |
Can be used to measure the surface temperature
where a low voltage may be present. The insulated wire and tip can
also protect the thermocouple in a corrosive liquid / environment.
The insulated wire will ensure that you are measuring the
temperature at the tip and not along the wire length.
Detail The operating temperature for the insulation is 300
degrees celsius,
the insulation is applied in three coats to prevent pin holes,
however, this will increase the diameter as follows.
200micron will increase to 210 micron 25 micron to 28 micron and 50
micron increases to 56 micron. |
| Insulation on bare wire only (not on tip) |
For
applications where the bare wire could cause a short circuit, for
example, if you are attaching the thermocouple tip with solder, we
would recommend this option. |
| Capton (polyimide) tape reinforcement |
Reinforce connection between original wire
and fine wire |
| Bare wire length |
Usually 10mm,
however it is possible to manufacture to your specific request between 5mm
& 23mm
without charge. But please take care, the longer
the wire the more difficult it is to use. |
| Packing sheet |
The
thermocouples are usually dispatched in cardboard to reduce any
static build up, we can also offer acrylic resin sheet free of
charge, for clean room applications. Please specify this when
ordering. |
