Simple – Save installation time and reduce the cost of instrumentation on the machines you build with the PyroMini OEM.
Easy – This simple sensor works straight out of the box with no configuration necessary.
Accurate – Fixed emissivity setting provides accurate measurements on non-reflective materials such as paper, foodstuffs, organic materials, rubber, painted surfaces (including painted metals) and thick plastics.
Compact – Install the sensor where space is limited. The sensing head measures just 55 mm long, with a right-angled cable entry.
Industry standard outputs – A choice of robust industrial analogue outputs including 4-20 mA, thermocouple or voltage allows the sensor to be connected directly to an existing temperature indicator or controller.
-20°C to 100°C (LT models)
0°C to 250°C (MT models)
0°C to 500°C (HT models)
Choice of outputs:
4-20 mA, 2-wire, loop-powered, linear with temperature,
0-10 V DC, linear with temperature,
Type J Thermocouple,
Type K Thermocouple
Field of View
Choice of options (see Field of View Diagrams)
± 1°C or 1%, whichever is greater
± 0.5°C or 0.5%, whichever is greater
Fixed at 0.95
Response Time, t90
240 ms (90% response)
Supply Voltage (at Sensor)
12 to 28 V DC (for 0-10 V DC models)
6 to 28 V DC (for all other models)
Maximum Current Draw
Max. Loop Impedance
900 Ω (4-20 mA output)
The given measured spot size contains 90% of the energy detected by the sensor. We normally recommend the target is at least twice as large as the given measured spot for maximum accuracy.
Sensors may be used at longer distances than the above diagrams show. There is no maximum measurement distance in clean air, and accuracy does not change with distance; this is because the sensor detects only the wavelengths of infrared radiation that are not absorbed by the atmosphere.
Construction (Sensing Head)
Stainless Steel 316
Construction (Electronics Module)
Major Dimensions (Sensing Head)
18(dia.) x 55(l) mm (see Installation)
Major Dimensions (Electronics Module)
26.5(h) x 25(w) x ~130(l) mm including cable glands
Mounting (Sensing Head)
M16 x 1 mm thread
Mounting nut included
Mounting (Electronics Module)
Requires four M3 screws (see Installation)
Sensing head cable: 3 m
Output cable: 1 m as standard; up to 30 m available
Conforms to Standards
Electromagnetic Compatibility Standards
Conforms with EMC Directive EN61326-1:2006 (Electrical Equipment for Measurement, Control and Laboratory Use – Industrial)
Ambient Temperature Range
Ambient Temperature Range0°C to 120°C
Electronics Module (without touch screen)
Ambient Temperature Range0°C to 70°C
The PyroMiniOEM is ideal for use in a range of applications, such as:
The PyroMini OEM's non-intrusive design means this temperature sensor can be fitted to food manufacturing machines, taking up a minimum of space, and can be used without contamination of the product. This is all thanks to the compact 55mm non-contact sensing head.
In the plastic manufacturing industry, thermoforming machines heat plastic sheets to make them malleable. Provided the plastic is thicker than a millimetre or so, it can be measured easily using a general purpose sensor (contact Calex for specialised sensors for thinner plastics).
To integrate a PyroMini OEM sensor into existing machinery monitoring systems, there is a choice of four analogue output options.
Timber workpieces in wood manufacturing machines are constantly on the move, and as such contact temperature probes would not be suitable. Wood temperature can be measured in processes such as sawing, sanding and planing to help indicate worn cutting surfaces.
Calex sensors are commonly used in measuring textiles with success. Industries such as textile manufacturing deploy temperature sensors to their production machinery, to monitor fabric web temperatures as well as the equipment itself such as coated rollers. Steel rollers can be measured using the PyroMini OEM if a band is painted (to measure bare steel, consider the PyroUSB).
Machinery such as screen-printers, dryers and tunnel finishers will benefit due to the need for continuous temperature monitoring.
A small sensing head with a right-angled cable entry allows for the discreet installation of the PyroMini OEM into most spaces. The sensor can be installed in a 16 mm hole via the included mounting nut, and optional mounting brackets are also available.
The PyroMini OEM is a two-piece sensor with a miniature sensing head and separate electronics module. Each model number includes both parts.