piezometer data logger

A piezometer data logger from Kingmach doesn’t complicate field setup. The analog front end includes programmable gain and filtering that matches the output characteristics of vibrating wire and 4-20mA piezometers. For VW sensors, the excitation sweep is adjustable—typically between 400 Hz and 4000 Hz—and the logger records both frequency and temperature with enough resolution to spot a few millimeters of water pressure change. On the current-loop side, the 24-bit ADC keeps quantization error low even with long cable runs. Channel count is configurable; a common variant supports four differential inputs, which is enough for most single-borehole profiles or small arrays. Data gets stored on a removable SD card or internal flash, with cyclic and stop-when-full modes. Retrieval can be done locally via USB or remotely through 4G/NB-IoT if the optional telemetry module is fitted. Power consumption is kept low enough that a 12V sealed lead-acid battery often lasts six months between site visits. The logger’s firmware handles common calculations like pressure head conversion and barometric compensation when paired with an external sensor. Kingmach supplies units preconfigured to project specs, cutting down the bench time before installation. Their global distributor network means local stock and support are sometimes available, and the team will review wiring diagrams or data formats during commissioning calls.