New sensors reach the parts that others can't

Sensors that can monitor the temperature of targets at distances from a few millimetres to several metres are now available from Calex Electronics.

These sensors can also be used in areas which are not accessible to most other temperature sensors currently on the market.

MLE infrared temperature sensors are two-part units with small separate sensing heads connected to their larger electronics modules by a flexible cable. This allows the heads to be used in confined spaces where many infrared sensors cannot fit.

These small heads can even move relative to their electronics modules, without interference to their readings. This allows them to be used on moving arms and machinery, to reach the areas and take the readings that other temperature sensors cannot.

While small, the sensing heads are also tough. A stainless steel housing sealed to IP65 gives them good protection from the rigours of use in arduous environments, and allows them to be washed down with other equipment when hygiene is important. They can also operate at elevated ambient temperatures up to 70°C without the need for any additional cooling.

Virtually any non-reflective target from -20°C to 500°C can be measured, whether it is stationary, moving, rotating or flowing.

The standard 4-20mA signal output available from the MLE is generally the preferred choice, due to the low cable cost and high noise immunity. However, when retro-fitting to existing equipment it can sometimes be desirable to have a wider choice outputs to match the instrumentation that is in place.

For these situations, the MLE series also offers a choice of thermocouple, voltage and millivolt outputs. So, for example, units can be fitted as direct replacements for more traditional thermocouples.

Contact: Calex​,Tel: 01525 853800​