Hanna Instruments Turbidity Meter

HI 83414 is a highly accurate dual parameter instrument that reflects HANNA’ s years of experience. The HI 83414 successfully combines turbidity and colorimetric measurements to test the most important parameters of drinking water: turbidity and free/ total chlorine. The meter is specially designed for water quality measurements, providing reliable and accurate readings on low turbidity and chlorine values. The HI 83414 meets and exceeds the requirements of USEPA and Standard Methods both for turbidity and colorimetric measurements.
With the powerful CAL CHECK™ function, reliable performance can be validated at any moment by using the exclusive HANNA ready-made, NIST traceable standards. A one-point calibration can be performed using the same CAL CHECK™ standard.
This instrument features an optical system to guarantee accurate results, assure long term stability and minimize stray light and color interferences. They also compensate for variations in intensity of the lamp for less frequent calibration.
The 525 nm interference filter of the colorimeter assures accurate and repeatable results. Repeatability of the measurements are ensured with 25 mm round cuvettes made from special optical glass.
Turbidity measurements can be made in the 0.00 to 4000 NTU ( Nephelometric Turbidity Units) range when ratiometric measurements are used and in the 0.00 to 40.0 NTU range when non ratio method is used. The HI? 83414 has an EPA compliance reading mode which rounds the reading to meet EPA reporting requirements. Alternative EBC and Nephelos measuring units are available. Depending on the measured sample and needed accuracy, normal measurement, continuous measurement or signal averaging measurement can be selected.
Specification:
Free and
Total Cl 0.00 to 5.00 mg/L (ppm)
Resolution Non Ratio Mode 0.01; 0.1 NTU; 0.1; 1 Nephelos; 0.01 EBC
Ratio Mode 0.01; 0.1; 1 NTU; 0.1; 1 Nephelos; 0.01; 0.1, 1 EBC
Free and
Total Cl 0.01 mg/L (ppm) from 0.00 to 3.50 mg/L (ppm)
0.10 above 3.50 mg/L (ppm)
Accuracy
@25°C Turbidity ±2% of reading plus 0.02 NTU (0.15 Nephelos; 0.01 EBC)
±5% of reading above 1000 NTU (6700 Nephelos; 245 EBC)
Free and
Total Cl ±0.03 mg/L or ±3% of reading
(whichever is greater)
Method Turbidity Nephelometric method (90°) or Ratio Nephelometric Method (90° & 180°), Adaptation of the USEPA Method 108.1 and Standard Method 2130 B
Free and
Total Cl adaptation of the USEPA Method 330.5
and Standard Method 4500-Cl G.