Product category:
Monitoring and sensor equipment and systems
News Release from: Calex Electronics | Subject: Fibre-optic infrared temperature sensors
Edited by the Manufacturingtalk Editorial
Team on 20 August 2007
Infrared temperature sensors work to
2500 deg C
Fibre-optic infrared temperature sensors offer a much wider temperature range, from 300 to 2500 deg C and provide a very short wavelength spectral response for measuring metallic targets.
There are now three additional Convir FL series of fibre-optic infrared temperature sensors These sensors extend the temperature range of the FL series to measure from 300 to 2500 deg C, as well as improving their performance at short-wavelengths
This article was originally published on Manufacturingtalk on 31 Jul 2006 at 8.00am (UK)
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A series of fibre-optic infrared temperature sensors are for installations where traditional sensors cannot operate, such as near induction heaters, in vacuums or in high ambient temperatures.
Fibre-optic infrared temperature sensors
The wider temperature range of the Convir FLA series of fibre-optic infrared temperature sensors adds extra flexibility while their USB interface allows for faster, simpler configuration.
The new FL-SI-18 and FL-SI-25 models both measure in the spectral range 0.8 to 1.1 micron and have temperature ranges of 650 to 1800 deg C and 800 to 2500 deg C respectively.
This very short-wavelength spectral response makes them particularly well suited to measuring most metal targets, as it helps to improve the apparent emissivity of the metal surface and can reduce possible errors from variations in emissivity of the surface.
The FL-GAI-13 and FL-GAI-18 models measure at 1.45 to 1.8 micron and offer wide temperature ranges of 300 to 1300 deg C and 350 to 1800 deg C respectively.
Further reading
IR temperature sensor mounts just where you want
One of the most striking things about the new Convir IL Series infrared temperature sensor is its small size; at just 105mm long and 25mm diameter it can easily be mounted just where you need it
Handheld infrared thermometers have laser sighting
A range of low cost, handheld infrared thermometers with laser sighting and a large backlit LCD display have various temperature ranges to suit different applications.
These broad temperature ranges allow the FL-GAI models to be employed in applications where before the use of fibre-optic sensors has not been possible.
All of the models in the FL series have a USB interface for configuration and data logging via a PC.
With the AF-301U software and interface cable the temperature range, emissivity value and response time of these sensors can be configured to meet the requirements of individual applications.
A 'peak picker' mode is also available for use with intermittent targets.
This software can provide a real-time display of the current temperature measurement of the FL sensor, and of the maximum, minimum and average readings.
Furthermore, the AF-301U software offers graph plotting functions and can save and export measurements as a text file.
These sensors use optical heads with manually adjustable focal distances to provide the optimum measurement spot size at a given distance.
Two different optical heads are available; for small targets at short distances there is the LVO25, which can give a measurement spot of 1.6mm diameter at a distance of 80mm.
For measurements over longer distances there is the LVO35, which can provide a measurement spot of 11mm diameter at a distance of 1m.
These optical heads provide a white LED pilot light to show both the position and size of the measurement spot for precise alignment.
The optical heads and electronics enclosures of the FL series are made of stainless steel and sealed to IP65.
The optical heads can operate in ambient temperatures up to 250 deg C without the need for cooling.
The fibre-optic cable is protected by a stainless steel braid, with 1.5m of cable supplied as standard and up to 5m available on request.
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