Calcium and Magnesium Portable Photometer-kit
$721.350
+ IVA
1 disponibles
1 disponibles
Calcium and magnesium both play important roles in the growth of plants. Calcium helps plant roots develop and increases the resistance and strength of plant tissues and stems. Magnesium is an indispensable mineral that helps in the production of chlorophyll, the light-absorbing green pigment that serves as an energy source for plants. It also increases vitamin concentrations and aids in uptake of phosphorus within the plant body.The HI97752 offers multiple methods within one meter. Calcium determination uses the oxalate method; magnesium determination uses the calmagite method. The ready-made reagents are in liquid form. When the appropriate reagents are added to the sample, a color change will occur due to the presence of calcium or magnesium; the greater the concentration, the deeper the color. The associated color change is then colorimetrically analyzed according to the Beer-Lambert Law. This principle states that light is absorbed by a complementary color, and the emitted radiation is dependent upon concentration. For determination of both calcium and magnesium, a narrow band interference filter at 466 nm allows only blue light to be detected by the silicon photodetector and omits all other visible light emitted from the LED. As the change in color of the reacted sample increases, absorbance of the specific wavelength of light also increases, while transmittance decreases.The HI97752 has an innovative optical system that offers superior performance in accuracy, repeatability, and the short amount of time it takes to perform a measurement. This compact, waterproof meter is extremely user friendly with a tutorial mode that walks the user graphically, step by step, in performing a measurement. The use of a backlit dot matrix LCD allows the use of virtual keys which makes the operation of the meter very intuitive including selecting different units of measure, reviewing GLP data, recalling the last 50 measurements, and customizing the meter to user preferences.HI97752 is completely waterproof including the cuvette holder that is designed with ridges to protect the optical path from getting scratched by the cuvette and a gasketed battery compartment that holds three common AA batteries. The compact design fits comfortably in the hand for use in the field or on a table for benchtop use. The LCD is backlit for easy viewing under all conditions.
- LED that generates very little heat
- 8 nm narrowband interference filter that is accurate to +/- 1 nm.
- Reference detector that modulates the voltage to LED for consistent light output.
- A concave focusing lens that reduces errors from imperfections in the cuvette.
On-Screen Features
CAL CheckAdvanced features including CAL-Check to verify performance and if necessary, recalibrate.
Setup OptionsSetup options for meter personalization include date and time format, language, and enabling the tutorial mode.
Backlit DisplayBacklit dot matrix LCD that offers an exceptionally intuitive user interface that is easy to read and understand.
Tutorial ModeTutorial mode for step-by-step instructions to guide a first-time user in how to perform a measurement correctly.
Reaction TimerBuilt-in reaction timer that ensures consistency amongst multiple users.
HI97752 FEATURES/BENEFITS:
Stable Light Source:
- The internal reference system of the HI97752 photometer compensates for any drifts due to power fluctuations or ambient temperature changes. With a stable source of light the readings are fast and stable between your blank (zero) measurement and sample measurement.
High Efficiency Light Source:
- LED light sources offer superior performance compared to tungsten lamps. LEDs have a much higher luminous efficiency, providing more light while using less power. They also produce little heat, which could otherwise affect electronic stability.
High Quality Filters:
- Improved optical filters ensure greater wavelength accuracy and allow a brighter, stronger signal to be received. The end result is higher measurement stability and less wavelength error.
Greater Light Yield:
-
A focusing lens collects all of the light that exits the cuvette, eliminating errors from imperfections and scratches that may be present in the glass. The use of the convex lens reduces the need for indexing cuvettes.
CAL Check Functionality:
- Hanna’s exclusive CAL Check feature allows for performance verification and calibration of the meter using NIST traceable standards. Our CAL Check standard vials are developed to simulate a specific absorbance value at each wavelength to verify the accuracy of subsequent readings.
Large Cuvette Size:
- The sample cell of the HI97752 fits a round, glass cuvette with a 25 mm path length. The relatively long path length of the sample cuvette allows the light to pass through more of the sample solution, ensuring accurate measurements even in low absorbance samples.
Intuitive Dot Matrix Display:
- The HI97752 is designed with a backlit, graphic LCD. With virtual keys, a battery status indicator, and error messages. Users will find the meter interface intuitive and easy to read. A dedicated help key provides information relating to the current meter operation, and can be used at any stage in the setup or measurement process to show contextual help.
Auto-off Protection:
- The meter uses three common AA batteries that allow for about 800 measurements to be taken. The auto-off feature automatically shuts off the meter after 15 minutes of inactivity in order conserve battery life.
CARACTERíSTICAS DEL PRODUCTO
HI97752 is an advanced portable photometer for the measurement of calcium and magnesium in water. This meter offers a superior optical system that utilizes a reference detector and narrow band interference filters for extremely fast and repeatable measurements.
- No warm up time before taking a measurement
- Tutorial mode for step-by-step instructions
- CAL Check to verify meter performance
| Peso |
1 kg |
|---|
| SKU | HI97752C |
| Descripción | Fotómetro Portátil de Calcio y Magnesio con CAL Check - HI97752 |
| Rango Calcio | 0 a 400 mg/L (como Ca2+) |
| Resolución Calcio | 1 mg/L |
| Exactitud Calcio | ±10 mg/L ±5% de la lectura a 25°C |
| Método Calcio | Adaptación del Método de Oxalato |
| Rango Magnesio | 0 a 150 mg/L (como Mg2+) |
| Resolución Magnesio | 1 mg/L |
| Exactitud Magnesio | ±5 mg/L 3% de la lectura a 25°C |
| Método Magnesio | Adaptación del Método de Calmagita |
| Fuente de Luz Fotómetro/Colorímetro | LED con filtro de paso de banda de 466 nm |
| Detector de Luz Fotómetro/Colorímetro | fotocelda de silicio |
| Filtro Ancho de Banda | 8 nm |
| Exactitud Longitud de Onda Filtro de Banda | ±1.0 nm |
| Tipo de Cubeta | redonda de 24.6 mm de diámetro (22 mm en el interior) |
| GLP | sí |
| Pantalla | LCD B/N de 128 x 64 píxeles con retro iluminación |
| Memoria de Registro | 50 lecturas |
| Tipo de Batería/Duración | 1.5V AA alcalina (3 uds.) /> 800 mediciones (sin retro iluminación) |
| Apagado Automático | después de 15 minutos de inactividad (30 minutos antes de una medición LEER) |
| Ambiente | 0 a 50°C (32 a 122°F); HR 0 a 100% (IP67) |
| Peso | 380 g (13.4 oz.) |
| Dimensiones | 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0") |
| Información Sobre Pedidos | El HI97752C se suministra con estándares CAL Check, cubetas (2), tapas (2), insertos de plástico para cubeta, (2), tijera, paño de limpieza de cubetas, baterías AA de 1.5V (3), manual de instrucciones y certificado de calidad del instrumento empaquetado en un estuche resistente termoformado. |
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