Title: +038=370.101-OE002T_02-Multical 801 Energimåler Kamstrup - Teknisk beskrivelse.pdf
In order to reduce the influence of hum, which can e.g. be picked up in long sensor cables, double measurements with a timing difference of half a period of time are carried out, and the average of the two measurements is the temperature measurement used for calculation and the one displayed. The hum suppression is optimized to either 50 Hz or 60 Hz depending on the selected country code.6.8.1 Measuring current and powerMeasuring current is only sent through the temperature sensors during the short duration of the temperature measurement. The effective power which is deposited in the sensor elements is thus very small, and its influence on the self-heating of the temperature sensors is typically less than 1/1000 K.Pt100Pt500Measuring current< 3 mA< 0.5 mAPeak power< 1.5 mW< 0.2 mWRMS influence< 10 µW< 1 µW44Kamstrup A/S · Technical Description · 5512-571_R1_GB_11_2016MULTICAL® 8016.8.2 Average temperatures