Air Monitoring

  • New Non-contact Infra-red Temperature Sensor

New Non-contact Infra-red Temperature Sensor

Apr 17 2008 Read 1240 Times

Calex (UK) is delighted to announce the new PyroUSB Non-Contact Infra-Red Temperature Sensor. This all-new sensor connects directly to a PC via a USB cable (included) and operates without the need for any additional hardware interface or power supply.
The CalexSoft software (also included) is simple to install and requires no specialist knowledge to set up and use. It displays
temperature in numerical format and on a simulated scrolling chart. Users can set the temperature range and emissivity, compensate for reflected energy, apply filtering to fluctuating temperatures and use
peak or valley-hold processing to measure hot or cold objects on conveyors.
The software may also be used to record measurements at any interval from 1 second to 1 week and pre-programmed to start and finish at any time or date. Audible/visual alarms can be set to warn users that the
temperature is either too high or too low.
The built-in OPC Server interface allows communication between the sensor and any other equipment with OPC Client capabilities, making systems integration simple and affordable.
In addition to the USB interface, the sensor is equipped with a 2-wire, 4 to 20 mA output, which is linear with temperature. This output can be connected at the same time as the USB interface or independently. The
PyroUSB sensor is capable of measuring temperatures accurately and repeatably from -40°C right up to 1000°C. If a smaller range is required this can be set using the CalexSoft software.
The sensor itself is just 106 mm long by 18 mm diameter and made of polished stainless steel, sealed to IP65, making it ideal for food and pharmaceutical applications.
It is held in place by a mounting nut (included). Fixed and adjustable brackets are offered to simplify mounting and a laser sighting tool is available to assist in the sighting of the sensor.
The high-quality Germanium lenses used by Calex produce very well defined optical paths. There are three to choose from; the first provides a field of view with a distance to spot size ratio of 15:1. There is also a lens with a 30:1 ratio and one which focuses on
a 5 mm diameter spot at 100 mm distance, which is ideal for small targets such as electrical components.
If the sensor is required to operate in a very high or low ambient temperature (less than 0°C or more than 70°C) it can be ordered with a water/air-cooled jacket built around it. The temperature inside the sensor can also be monitored from the PC to make sure it doesn’t exceed the ambient limits.
For dusty environments, such as in paper or textile mills, an air-purge collar can be fitted to keep the lens clean.
Built-in adaptive filtering provides a very stable signal without compromising the remarkable 250 ms response time, so there is no need to sacrifice a fast response in order to achieve a stable reading.

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