Strain Signal Acquisition Module

Strain signal acquisition modules from Kingmach turn raw analogue signals into usable numbers without adding noise. Internally, the front-end uses a low-drift amplifier and a 24-bit ADC, which matters when you're measuring microstrain on a bridge girder or a retaining wall. The module supports up to eight differential inputs, switchable between full-bridge and half-bridge configurations, so one box covers most site sensor layouts. Sampling rates are configurable from 1 Hz to 100 Hz, balancing resolution against data volume. Excitation voltage is software-selectable, a small touch that saves you from crawling back to the cabinet with a screwdriver. For communications, there's RS-485 and optional Ethernet, talking Modbus RTU or TCP. That means you can drop it straight into an existing SCADA setup or connect it to Kingmach's own datalogger for a plug-and-play chain. Power consumption idles around 2 W, so solar+battery installations stay practical. The board is conformally coated and rated for -20°C to 60°C operation; it gets put into sealed enclosures for sub-zero slope monitoring in central Asia or humid tunnel jobs in Southeast Asia. Calibration data is stored on the module, and the firmware compensates for lead resistance and temperature effects on the sensor. Users typically run a two-point calibration with a shunt resistor before commissioning, which takes minutes through the PC utility. Kingmach keeps stock of these modules in three regional hubs, so lead time isn't a gamble. Customizations like extra surge protection or narrower excitation ranges are available when projects require them, handled through the same engineering team that designs the company's inclinometers and piezometers.