HANNA HI88713 Bench Laboratory Turbidity Meter

The HI 88713 turbidity bench meter meets and exceeds the requirements of the  ISO 7027 standard.
HI 88713 is based on an optical system which guarantees accurate results, long term stability and minimizes stray light and color interferences. It also compensates for variations in intensity of the LED, limiting the need for frequent calibration.

Depending on the measured sample and needed accuracy, normal, continuous or signal averaging measurement can be selected.
A two, three, four or five-point calibration can be performed using the supplied standards. Calibration points can be modified when user prepared standards are used.

The HI 88713 turbidity bench meter has complete GLP (Good Laboratory Practice) functions that allow traceability of the calibration conditions.
The HI 88713 turbidity bench meter has a user-friendly interface with an easy to understand, graphic LCD. Comprehensive contextual help is available at a simple key press. Furthermore, a tutorial mode of operation guides the user step by step through the analysis process.
Up to 200 measurements can be stored in internal memory. Data can be transferred to a PC via optional HI 920013 USB cable and HI 92000 Windows® compatible software.

Specification:
Range    FNU Mode    0.00 to 9.99; 10.0 to 99.9; 100 to 1000 FNU
FAU Mode    10.0 to 99.9; 100 to 4000 FAU
NTU Ratio Mode    0.00 to 9.99; 10.0 to 99.9; 100 to 4000 NTU 0.00 to 9.99; 10.0 to 99.9; 100 to 980 EBC
NTU Non-Ratio Mode    0.00 to 9.99; 10.0 to 99.9; 100 to 1000 NTU 0.00 to 9.99; 10.0 to 99.9; 100 to 245 EBC
Resolution    FNU Mode    0.01; 0.1; 1 FNU
FAU Mode    0.1; 1 FAU
NTU Ratio Mode    0.01; 0.1; 1 NTU / 0.01; 0.1; 1 EBC
NTU Non-Ratio Mode    0.01; 0.1; 1 NTU / 0.01; 0.1; 1 EBC
Accuracy @25°C    FNU Mode    ±2% of reading plus stray light
FAU Mode    ±10% of reading
NTU Ratio Mode    ±2% of reading plus stray light / ±5% of reading above 1000 NTU
NTU Non-Ratio Mode    ±2% of reading plus stray light
Range Selection         automatic
Repeatability         ±1% of reading or stray light, whichever is greater
Stray Light         < 0.1 NTU (0.05 EBC)
Light Detector         silicon photocell
Light Source         IR LED
Method         ISO 7027 Method
Measuring Mode         normal, average, continuous.
Turbidity Standards         <0.1, 15, 100, 750 FNU and 2000 NTU
Calibration         two, three, four or five-point calibration
Log Memory         200 records
PC Connectivity         USB
Environment         0°C (32°F) to 50°C (122°F); max 95% RH non-condensing
Power Supply         12 Vdc power input
Dimensions / Weight         230 x 200 x 145 mm (9 x 7.9 x 5.7”) / 2.5 Kg (88 oz.)