If the loop resistance is less than 10ohm, the meter may indicate zero. The loop resistance can never be about 10ohm. The common value of loop resistance is 0.5 ohm maximum 2 ohms, 10 ohm value is nonsense. Such measurement has no meaning. It is similar to measuring 2 drops of water with a 10-liter bucket. This meter cannot measure loop rezistance! Other meters sold under the next brand "PEAKMETER" (MS5910) on aliexpress do not have this restrictions.
