Laboratory turbidimeter AL450T-IR
Turbidity is measured according to ISO 7027 by nephelometric means (90° scattered light). The infra-red light-source permits measurement of coloured and colour-free samples. The automatic measurement range detection facility (Autorange) enables direct turbidity measurement from 0.01 to 1100NTU.

-automatic overall range adjustment with 4 standards
-high accuracy
-suitable for laboratory and mobile use
-memory storage of up to 1000 data-sets
-real-time clock
-waterproof sample chamber and housing

Scope of supply: insturment AL450T-IR in cyrrying case, 1 set of turbidity standards t-cal, 7 rechargeble batteries, 1 lithium battery, main charger, 100-240V, PC connection cable, 4 vials (diam. 24 mm) with lids, instruction maunal.
Specifications
Light source: IR-LED (860nm)
Keypad: conditional acid and solvent resistant; membrane switch keypad with audible feedback
Auto - Off: automatic switch off approx. 20 min after last key press
Display: Graphics multisegment
Update: Software update via internet
Memory: 1000 data sets with date, time and registration no.
Measuring range: 0.01 to 1100NTU (Auto range)
Resolution: 0.01NTU (0.01 to 9.99NTU)
0.1NTU (10 to 99.9NTU)
1NTU (100 to 1000NTU)
Accuracy: ± 2% of measured value or 0.01 (0 to 500NTU)/± 5% of measured value (500 to 1100NTU)
Ambient conditions: 0 to 40°C at 30 to 90% R.H. (non condensing)
Interface: RS232 for printer and PC-connection; 9-pin D-sub-mail connector; data format ASCII
Power supply: 7 NiCd rechargeable batteries (Type AA/Mignon, 800mAh); wall plug mains adapter and Lithium battery for data storage and real time clock

Type AL450T-IR