News

  • Sound Pressure Levels Precision Measurement

    By on May 27, 2021

    The quality, stability and reliability of a microphonic preamplifier are fundamental in the process of acquiring accurate measurements of sound pressure levels. The high impedance signal generated by precision microphones, which is very sensitive to the characteristics of the transmission cables, needs to be amplified and made compatible with the input specifications of professional measurement systems. The quality of...

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  • Make sure you get the maxium efficency from your UV LED light!

    By on March 18, 2021

    Faced with the fear of Covid-19, all over the world, researchers are focused on finding solutions and tools to fight the virus. These include as well UV lamps and their capacity to inhibit viruses. According to recent studies, it appears that the application of UVC ultraviolet radiation used by the new LED lamps has proved to be highly effective....

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  • Ambient Air Quality: nowadays we are all aware of the importance of clean air!

    By on March 18, 2021

    The term Air Pollutants also known as Particulate Matter or PM it is used to indicate the mixture of solid particles and liquid droplets found in the air. Some of these particles are large enough to be seen with naked eye but many other are so small and fine that can only be detected through specific instruments. Depending on...

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  • LoRaWAN® loggers LR35

    By on July 14, 2020

    For applications inside buildings or outside in ‘the field’ we provide a complete range of IoT data loggers: long distance data transmission. Our LoRa data loggers have a wide choice of standard sensors for measurements like temperature, humidity, dew point, CO2, differential pressure…and many more. Next to this, it is possible to integrate (third-party) sensors that have Modbus communication...

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  • Detecting rain…drops

    By on July 8, 2020

    The HD2013.3 is the newest update of our rain-detector, equipped with additional features like Modbus communication and analogue outputs. A simple but robust measurement made to do what it should do: to detect rain. What is interesting to see is what is being considered as ‘rain’. That depends a lot on the application. What some people call a ‘rain-event’...

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  • We calibrate wind-speed and wind-direction!

    By on June 26, 2020

    Added to our calibration capabilities: calibration certificate on wind-direction. As we receive more and more request for not only wind-speed calibration but also for a calibration certificate on wind-direction, we have invested in this possibility. We can generate several calibration reports as a standard: starting from a 4 point calibration (per 90°), up to a 24 points calibration (per...

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  • We take calibration to the next level

    By on May 14, 2020

    We as Delta OHM are so used to having extensive in-house ISO17025 calibration possibilities, that we sometimes forget how different this makes us from other suppliers. We do not just operate ‘a’ ISO17025 calibration facility. Our in-house ISO 17025 accredited Calibration Centre in fact consists of 6 independent laboratories; accredited for Air Speed, Temperature, Acoustic, Light, Pressure and Humidity....

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  • UVC Check Kit: measure UV-C

    By on April 28, 2020

    UVC irradiance measurement is important to check equipment that emits UV-C. Disinfection when using UVC can be very efficient. The Ultra Violet C light is being used to disinfect water, air and surfaces. Important is that the correct dose of UV-C is used; only when having the correct dosing of UV-C makes the disinfection effective. All equipment as used...

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  • LED LUX measuring KIT

    By on April 20, 2020

    Advanced KIT and Basic KIT: measuring LUX for LED and conventional light. Simple, accurate, no adjustments necessary to measure LED light. Ever been using a LUX meter to measure LED light? Maybe you recognize a very common effect that many already have discovered: the LED light seems to be a higher intensity than the conventional light, but still the...

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  • How to measure Sunshine Duration with a Pyranometer (WMO-NO.8)

    By on April 8, 2020

    In the Guide to Meteorological Instruments and Methods of Observation, the WMO has approved the possibility to use the so called ‘pyranometric method’ to calculate Sunshine Duration. This means that, next to the already frequently used method where a specific Sunshine Duration sensor is being used, in some cases it may be more efficient to use the measurement data...

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