(of an instrument) calibrated so that a given quantity to be measured can be read directly off the scale without the need of a multiplying constant
Examples of 'direct-reading' in a sentence
direct-reading
Measurements of particulate matter were performed using portable direct-reading equipment.
Carla Viegas, Tiago Faria, Cátia Pacífico, Mateus Dos Santos, Ana Monteiro, CarlaLança, Elisabete Carolino, Susana Viegas, Sandra Cabo Verde 2017, 'Microbiota and Particulate Matter Assessment in Portuguese Optical Shops ProvidingContact Lens Services', Healthcarehttp://www.mdpi.com/2227-9032/5/2/24. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Then measures the indoor air quality test with direct-reading instruments.
Lin Lee-Kuo, Cai Yan-Sin, Tsai Yao-Chien 2017, 'Analysis of hospital interior air quality audits', MATEC Web of Conferenceshttps://doi.org/10.1051/matecconf/201711901036. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)