ASLD2200 - Instruction Manual
3 ASLD2200 Selection
3.1 Sensor Selection
The ASLD2200 is supplied with a IR sensor; the correct sensor should have been selected before purchase. If you are
in any doubt about the sensor that has been supplied please contact Partech.
Sensor replacement in the field is easy to carry out; the table below indicates the normal application of the each of the
four sensor ranges.
IR100 range 0 to 200mg/l
This sensor is normally used for Suspended Solids
measurements and is not normally applied to Sludge
Blanket measurement. The sensor should only be used if
the sludge is very ‘light’ with very clear supernatant.
IR40 range 0 to 1,500mg/l
This is the most commonly used sensor and is suitable for
use on final settlement tanks in sewage treatment
applications and clarifiers in water treatment works.
IR15 range 0 to10,000mg/l
This sensor is also regularly used for sludge blanket
detection and is normally used for primary settlement in
sewage treatment and sludge thickeners in water treatme
IR8 range 0 to 30,000mg/l
This sensor should only be applied on sludge thickeners in
sewage treatment plants.
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103370IM Issue 10 Date 19/03/2018
