OK, I can open it on a different device now, and yes, that salinity is very low, but the conflict with the refractometer is not due to an "imbalance". A refractometer would read that as very low too.
So if it still reads normal after recalibration, and there's no chance the tank water got diluted before going to Triton, I'd get a new batch of calibration fluid, and in the meantime, calibrate with RO/DI and see what difference that makes.