Tag Archives: Technical Advice

Calex normally recommends using a short-wavelength infrared temperature sensor to measure the temperature of metals, instead of a general-purpose type, because it is more accurate. But why is it more accurate? Here are the reasons. 

Complete PyroMiniBus RS485 Modbus temperature monitoring and logging system with 6 sensors, junction box and touch screen display module

Modbus is a communication protocol for networks of devices, including Calex infrared temperature sensors such as the PyroMiniBus. Our own specialised hardware makes it easy to take measurements and configure sensors without any programming knowledge, however it is also possible to use third-party software to communicate with Modbus devices. A little understanding of Modbus is … Continue reading How to Use Third Party Modbus Software with Calex Sensors

The ST640 and ST642 infrared thermometers from Calex Electronics

A handheld infrared thermometer is a useful diagnostic tool. Here are some tips on how to achieve accurate measurements, and how the handheld thermometer can be used to find out if a planned installation of fixed-mount sensors could be successful.

How do you know if your infrared temperature sensor is aimed correctly? Here are some easy ways to improve the alignment of your pyrometer.

Advancements in the Calex product range make it easier than ever to measure the temperature of busbar joints in switchgear cabinets.

The lens of every infrared temperature sensor must be kept clean and dry to ensure the pyrometer has a clear view of the target. The simplest way to do this is to purge the lens continuously with clean air, preventing dust and moisture from reaching it. Here is how to use the air purge collar. 

Measuring the temperature of plastic preforms in blow moulding applications is easy with Calex infrared temperature sensors. An accurate measurement can be obtained as fast as 1 millisecond, even from the smallest preform, without touching the preform.

Calex has achieved success in measuring the surface temperature of extruded aluminium profiles using low-cost non-contact pyrometers. Measurements were taken by a leading manufacturer of extruded profiles at the press exit and after the quench, and good results were obtained with short-wavelength single-wavelength pyrometers, even with significant steam near the quench box.

PyroUSB compact pyrometer with USB and 4-20 mA outputs

The new PyroUSB series of configurable infrared temperature sensors is now available! All models have a 2-wire, loop-powered 4-20 mA output for industrial process temperature monitoring, and a removable USB cable for configuration and benchtop temperature measurement.

Most infrared temperature sensors have an adjustable emissivity setting. Here’s how to use this powerful feature to achieve accurate measurements from a variety of surfaces.