Absorption Measuring Instrument bypass
The ColorPlus measures the colour/absorbance online at up to three different wavelengths. The bypass measuring cell has been specifically designed for applications within the water industry. Depending on the configuration it allows measuring DOC (UV absorption) and colour (Hazen) simultaneously and to compensate turbidity. Soiling of the flow cell is measured by means of a compensation glass in the interior of the flow cell. The effect of cell soiling is greatly reduced internally; constant and precise measured values are guaranteed. The user is alerted if the cell has to be cleaned. The cover of the flow cell can be opened without tools and allows simple access for cleaning the flow cell. For inspecting the instrument, checking units on the basis of reference filters can easily be inserted. Operation is done
Color/absorption measurement in liquids
Concentration measurement of substances by absorption at characteristic wavelengths
Calibration in E/m, APHA-Hazen, EBC, ASTM, Saybolt, etc.
Measuring principle Absorption
Nominal range
0 .. 3 E
0 .. 60 E/m
0 .. 420 Hazen @390nm
Scale ranges 8, freely configurable
Resolution 0.001 E
Enclosure Stainless steel 304 / 1.4301
Protection index IP65
Flow cell material PVC 100 mm / 50 mm
Sample flow rate 0.5 .. 1 l/min
Sample temperature 0 .. 50 °C
Sample pressure 600 kPA (6 bar)
Ambient temperature -20 .. +50 °C
Weight 4.3 kg
Connections Inlet / Outlet Ø 9 mm o.d.
Wavelengths UV 254 nm, 313 nm, 365 nm, 436 nm, 546 nm
Wavelengths VIS 365 nm, 380 .. 700 nm
Units E, E/m, Hazen, GOST