Turbidimeter Hanna HI 88713-02

Table turbidimeter with LCD screen, memory for up to 200 records, GLP functions, PC connection

The tabletop turbidimeter has a large screen that meets all requirements for measuring turbidity on-site. The turbidimeter features a state-of-the-art optical system that ensures precise results, long-term stability, and minimizes stray light and color interference. The turbidimeter also compensates for variations in lighting, limiting the need for frequent calibration. The turbidimeter has cuvettes that ensure especially the repeatability and consistency of measurements. Turbidity measurements can be performed in four ways. Depending on the type of sample and precision, one can select between normal, continuous, or average value measurement. The turbidimeter can be calibrated at two, three, four, or five points using the supplied standards. Calibration points can be modified when using custom standards. The turbidimeter is easy to use. It has a help feature that guides the user step by step through the entire analysis process with just a button press. The turbidimeter has internal memory for up to 200 measurements, which can be queried later for analysis, and the data can be transferred to a PC via the USB port and software.

- Large LCD screen of 41 x 34 mm

- Tiempo real

- High precision

- Cumple ISO 7027

- Measurement of transmitted light and diffused lux

- Infrared measurement method

- Data-Hold

- Memory of maximum and minimum values

- Calibration of 0 and 100 NTU

- Carcasa compacta resistente a golpes

- Automatic disconnection (after 5 min.)

Unidades

The turbidimeter displays the measurement result in NTU (Nephelometric Turbidity Unit). This unit is specified in the ISO standard. NTU is identical to FTU (Formazine Turbidity Unit). In practice, two other units are used to measure turbidity: JTU and SiO2. JTU (Jackson Turbidity Unit) corresponds to 19 times the NTU, while Silica Unit corresponds to 7.5 times the NTU.

Measurement principles

In the turbidimeter, an infrared LED works with 850 nm as the light source. A photodiode positioned at a 90º angle to the light beam receives the light reflected by the particles in the measurement solution. (Scattered light or nephelometric measurement method for the lower measurement range.) For the upper measurement range, another photodiode is located opposite. (The measurement is performed by the transmitted light method.) The meter thus determines turbidity in NTU (FTU). Thanks to the use of an infrared LED, it is possible to perform measurements in colored liquids, such as red wine.

Technical specifications

Measurement ranges:

- Modo FNU

- Modo FAU

- Modo NTU Ratio



- Modo NTU Non Ratio

0,00 a 9,99 / 10,0 a 99,9 / 100 a 1000 FNU

10,0 a 99,9 / 100 a 4000 FAU

0,00 a 9,99 / 10,0 a 99,9 / 100 a 4000 NTU

0.00 to 9.99 / 10.0 to 99.9 / 100 to 980 EBC 

0,00 a 9,99 / 10,0 a 99,9 / 100 a 1000 NTU

0,00 a 9,99 / 10,0 a 99,9 / 100 a 245 EBC

Resolution

- Modo FNU

- Modo FAU

- Modo NTU Ratio



- Modo NTU Non Ratio

0,01 / 0,1 / 1 FNU

0,1 / 1 FAU

0,01 / 0,1 / 1 NTU

0,01 / 0,1 / 1 EBC

0,01 / 0,1 / 1 NTU

0,01 / 0,1 / 1 EBC

Accuracy

- Modo FNU

- Modo FAU

- Modo NTU Ratio



- Modo NTU Non Ratio

±2 % of reading plus stray light

±10 % of reading

±2 % of reading plus stray light

±5 % of reading above 1000 NTU

±2 % of reading plus stray light

Range selection

Parasitic light

Fuente luminosa

LED IR

Sensor lifespan

long-lasting

Light detector

silicon photocell

Memoria

200 registros

Interfaz

USB

Condiciones ambientales

0 ... 50 ºC / max. 95% RH without condensation

Normativa

ISO 7027

Power supply

12 V

Dimensions

230 x 200 x 145 mm

Peso

2,5 k g

Contents of the shipment

1 x Turbidimetro Hi 88713

6 x cuvettes, calibration cuvettes

1 x Silicone oil

1 x Cloth

1 x Power transformer

1 x User manual