The concentration of carbon dioxide is the crucial measurement parameter when monitoring IAQ and ambient conditions. A Testo CO₂ meter means you can count on absolutely precise measuring values. Particularly high requirements are set when it comes to the sensors of CO meters. Because the highly toxic, odourless gas has to be reliably detected at even the smallest concentrations, in order to rule out loss of consciousness and harm to health. A Testo CO meter ensures high-precision recording of CO and issues warnings for critical values.
Professional tips for speed measurement – with a strobe too
Rev counters are used in a huge number of applications. The most common include speed measurement on fans in air conditioning and ventilation technology, measurements on conveyor belts using an adapter or counting pulses on conveyor belts in industrial production. And no matter whether it is a rev counter or strobe – Testo's measuring instruments are intuitive to operate and provide high-precision measurement. And with a few little tips from the professionals, you can improve your speed measurement even more:
You must always ensure cleanliness for speed measurement. Both in terms of the sensor technology, because dirt particles in the sensor can falsify the measurement results. But also when applying the reflective markers, you should ensure that there is no residual dirt, such as oil, on the measurement object. A sticker that has poor adhesion can easily detach at high speeds and prolong the measuring process.
- Minimum distance
In order to ensure optimum recording of the measurement object (e.g. a shaft) by the tachometer, it should not be too far away. At the same time, always think of your own safety – it is absolutely essential to keep to a minimum distance from the moving object in order to rule out any injuries.
- Reflective stickers
Avoid unwanted reflections which falsify the measurement result by using a reflective sticker. In most cases, reflective stickers are included in the scope of delivery for a digital tachometer.
A strobe is ideal for measuring, checking and monitoring small parts that vibrate, rotate very fast and are difficult to access. This involves the strobe creating a static image of the rotating object using a flashing lamp. The flashing frequency of the lamp is increased or reduced until it matches the rotational frequency. This means the flashing frequency and frequency are identical.
- Standards and directives
There are no standards and directives to comply with for tachometers in the area of handheld instruments. These only apply to stationary tachometers, such as those used in mechanical engineering.