In CIMPS-ABS, two PECC-2 cells are mounted and used sequentially. One PECC-2 cell is used as a reference whereas the other is used for measurement. The reference cell aids in mitigating the artefacts due to light loss via reflection or electrolyte absorption which in turn helps in accurately measuring the absorption spectrum.
ABS-1: Beam diameter = 18 mm
ABS-1: Wavelength range = 360 - 1000 nm
ABS-2: Beam diameter = 600 µm
ABS-2: Wavelength range = 215 - 1100 nm