... , etc, especially for long time unattended testing System consists of data acquisition device, zero time receiver and built-in geophone. Reflection ... .Main Technical Specifications1 Signal Using Channels: 3 channels2 A/D Converter: 32 bit3 Sampling Interval: 1 ms, 5 ms, 0 ms ... before lithium cell, voltage after lithium cell, sampling point data.21Length of Data File Name, 8-Bit: The first 6 digits for ...