Bridge Completion Module for the SGASGABCM
Description
The SGABCM is a retro-fit PCB designed to enable connection of a half-bridge or quarter-bridge strain gauge to Mantracourt’s SGA Load Cell Conditioner. Ideal for applications where full bridge sensors are unavailable, the SGABCM allows users to adapt lower-bridge configurations easily and reliably.
Supplied with a precision 350 Ω 5 ppm/°C completion resistor and 120 kΩ shunt calibration resistor, the SGABCM facilitates accurate conversion of strain signals. It simply plugs into the standard J2 load cell connector on the SGA and provides screw terminal inputs for easy wiring.
The module includes onboard shunt calibration selection via jumpers, supporting both local and remote shunt calibration. This allows users to verify and fine-tune system accuracy as needed, with jumper positions for positive, negative, or no shift.
Compatible with all SGA variants, including the SGA/A, SGA/D, and those fitted with the IS1224 Isolated DC Power Supply Module.
Product Features & Benefits
- 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 Calibration’ can be performed by energising a miniature 24V relay fitted to the BCM. Multiple SGAs in an installation can be shunt calibrated simultaneously
Dimensions
FAQ
| Q | What is the SGABCM module? |
| A | The SGABCM is a retro-fit PCB which facilitates connecting a half or quarter-bridge strain gauge to the SGA load cell conditioner. |
| Q | Will the SGABCM work with both A (AC) & D (DC) versions? |
| A | Yes |
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