The input impedance of typical voltage input type instruments is 1 MΩ. By contrast, the allowable load impedance for voltage output is 2 kΩ or more, therefore the maximum number of units that can be connected is 500.
The input impedance of typical voltage input type instruments is 1 MΩ. By contrast, the allowable load impedance for voltage output is 2 kΩ or more, therefore the maximum number of units that can be connected is 500.