The A&D Weighing RA30-105 16-Channel Logic Module is a logic measurement module that converts 16 channels (8 channels x 2) of input signals into high level or low level logic signals according to a threshold. It supports voltage (high level/low level) detection and non-voltage contact (open/close) of input signals. Pulses can respond at 1 μs or lower. 16 channels of data synchronize for measurement and recording. The probe that can connect to this module is an optional 1539S floating voltage probe for recording the existence of 100V or 200V system voltage and the 1540S and 1543S voltage conversion probes for recording voltage increases and decreases for AC 100V systems and AC 200V systems.

One unit of this input module can input 16 channels of logic signals and when 9 modules are installed in the main unit, 144 channels of logic signals can be measured. Detects and records high and low voltage (0 to 24V) or open and closed contacts. Furthermore, by connecting probes, it is possible to measure high and low AC and DC voltages up to 250V and power line variations (100V and 200V).