Measuring device for gases in environment is such that voltage drop over resistances is fed directly as measured value to read-out device

摘要

A measuring device for gases has a measuring probe (SE) outside the housing (G) and a stable direct current voltage supply within housing (G), the read-out device (AN) being connected in parallel to resistances such that the voltage drop over the resistances is fed directly as the measured value to the read-out device (AN). A measuring device for gases has a measuring probe (SE) in a flow-favorable position outside the housing (G) and a stable direct current voltage supply within housing (G). In the measuring circuit of probe (SE) the read-out device (AN) is connected in parallel to a protective resistance with a series-connected adjustable calibration resistance for the setting of an individual read-out device (AN) such that the voltage drop over the resistances is fed directly as the measured value to the read-out device (AN).