How do I choose a probe?

Of course, it depends on what you are measuring. Luxtron offers a full line of standard probes designed for different applications. Fluoroptic probes are divided into three general use categories:

• Immersion: Intended to be inserted into fluids or installed inside objects and designed to measure the bulk temperature of the target object.
• Surface: Just as it says, for measuring surface temperatures.
• Remote: This is Luxtron’s unique method of making a psuedo NON-CONTACT measurement using Fluoroptic technology. Technically it does require you to “paint” a small patch of our phosphor sensor to your object, but otherwise it is non-contact. You apply some of the phosphor sensor to the object with a binder and observe it “remotely” using our optics. Luxtron offers a kit that includes all the necessary supplies and instructions. While some assembly is required, this method offers the ultimate in sensor response time and non-perturbation of the measured object.

For more details on all our standard probes please click here.

How strong are the probes?

Fluoroptic probes are incredibly strong and are constructed with the finest materials available. We use all-silica fibers with polyimide coatings, Teflon® jackets and Kevlar® reinforcement. These combine to provide a strong composite construction that is 100% non-metallic.

In addition, Luxtron uses a proprietary encapsulation process that protects the sensor and probe in a continuous layer of Teflon.

Finally, for our heavy industrial applications, such as the electric power industry, Luxtron offers a “ruggedized” probe that adds an additional spiral Teflon over-wrap. This extra layer provides impact protection from falling equipment, forklifts driving over then, or even direct hammering.

How hard can I pull on the probes?

The tensile strength of the fiber used in our standard probes is proof tested to be greater than 100 kpsi over a cross section of less than 0.3mm in diameter. If you are pulling the probes or the fiber optic extension cables through conduit or otherwise, then you do need to take care to properly attach a pulling grip. Do not pull directly on the fiber optic end connectors and keep the provided plastic caps installed during pulling to prevent dirt and scratches to the optical end face.

Do the probes require special handling?

Modern optical fibers are robust and designed to survive in harsh industrial environments. Handled properly, probes and extension cables will last indefinitely. However, there is one particular precaution that should be taken and that is against sharp bending of the fiber. To minimize this risk, Luxtron uses small diameter, 200 um, fibers that are relatively flexible, but if bent too sharply then the fibers can crack. It is recommended that probes not be bent to a radius of less than 20mm.

What type of fiber is used in Luxtron probes?

Most of Luxtron’s standard probes incorporate all-silica based fibers with polyimide coatings. This is further protected with Teflon® PFA jackets and Kevlar® yard strength members. However, construction of probes does vary depending upon the application design. See detailed specs of probes for more information.

What is the material compatibility of the probes?

The sensor is chemically inert and does not react or corrode. In addition, most standard probes are encapsulated in PFA Teflon® giving them nearly universal chemical resistance.

Do you offer LabVIEW drivers for you instruments?

YES, we offer a free LabVIEW driver. It is available for download from our website here.