Miniature signal conditioner SGABCM

load cell

The SGABCM is a retro-fit PCB which facilitates connecting a half or quarter-bridge strain gauge to the SGA Load Cell conditioner. This unit can also be bought in conjunction with an SGA. The PCB comes with a 5ppm/°C resistor for 350 Ohm bridge completion (both quarter and half) and a shunt cal resistor. The SGABCM is compatible with all variants of the SGA i.e. SGA/A, SGA/D and SGAs fitted with the IS1224 isolated DC power supply module. Easy installation – simply screws into the existing load cell connector on the SGA On-board screw terminal connections accept a wide range of bridge completion resistor enabling on-site installation without soldering equipment High stability resistors (5ppm/°C) fitted for the ‘fixed’ arms of the bridge A half bridge strain gauge is simply connected to the BCM module via the screw terminals, no additional components are required The quarter bridge strain gauge circuit, together with its completion resistor can be wired for compression or tension (stretching) giving a positive output Small footprint: approximately 53x32mm, screws into existing J2 connector The SGABCM can be ordered in conjunction with an SGA/A or D or ordered separately for retro-fitting to customers’ existing SGAs Screw terminals are provided for a ‘Shunt Calibration’ (shunt cal) shunt resistor to be fitted to periodically check the integrity of the strain gauge(s), wiring and calibration ‘Remote Shunt Cal’ can be performed by energising a miniature 24V relay fitted to the BCM. Multiple SGAs in an installation can be shunt cal’d simultaneously