The heart of a Q500/Q50 TGA is the accurate and reliable vertical
thermobalance housed in a temperature-compensated environment. Unlike
competitive instruments, no expensive circulator is required for optimal
performance. It uses the field-proven and industry-standard null-balance
principle, which is free from the baseline complications also inherent in
competitive designs. The Q500/Q50 balance provides the best accuracy
and precision in weight change detection from ambient to 1 000˚C, low
baseline drift, and sensitive, reliable operation over the entire weight range.