The input resistance of DM7560 Digital Multimeter is more than 1Gohm at 100mV, 1V, 10V range. Input bias current of DM7560 Digital Multimeter can not be eliminated. The small input current flows into the input resistance of DM7560 Digital Multimeter. So, several volts appear at the input, and it is measured and displayed. If the input is connected with a resistor or wire between HI and LO, the displayed value becomes around zero volts. Therefore, the unit is not malfunctioning.
The DM7560 is a flexible 6.5-digit digital multimeter with high-accuracy, high-speed data logging (up to 30k S/s) with deep 100k reading memory and built-in statistical analysis.
The wide variety of our DMM line provides the customer with different functions and accuracy depending on the requirements.