Hanna HI-97771 Free and Ultra High Range Total Chlorine Photometer

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Hanna HI-97771 Free and Ultra High Range Total Chlorine Photometer

The HI97771 has an innovative optical system that offers superior performance in accuracy, repeatability and short time required to take measurements. This compact waterproof meter is very user friendly with a tutorial mode that guides the user graphically, step by step, through taking measurements.

Product Description

Hanna HI-97771 Free Chlorine and Ultra High Range Total Chlorine Portable Photometer

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Chlorine is a common chemical used by for disinfection. High levels of chlorine, whether in liquid or produced by electrolysis of salt, is used in a variety of industries including produce washing, food processing, and the disinfection of medical equipment due to its’ effectiveness as a biocide. The 2017 FDA Food Code 4-501.114 states that based on temperature the chlorine concentration of equipment wash water should be between 25 and 100 mg/LHI97771 is designed to measure very high concentrations, 500 mg/L (ppm), of total chlorine in water. This meter also has a free chlorine range and can measure up to 5.00 mg/L (ppm).

The HI97771 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 LED allows the use of virtual keys which makes the operation of the meter very intuitive including selecting different methods, reviewing GLP data, recalling the last 50 measurements, and customizing the meter to user preferences.

HI97771 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 comfortable in the hand for use in the field or on a table for benchtop use. The LCD is 71 mm (2.75″) by 37 mm (1.6″) and is backlit for easy viewing under all conditions.

photometer optical system

  • LED that generates very little heat
  • 8 nm narrowband interference filter that is accurate to +/- 1 nm and offers 25% increase in light efficiency.
  • 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 Check
Advanced features including CAL-Check to verify performance and if necessary, recalibrate.

Log Regall
The Last 50 readings are autmatically stored for review.

method option

Setup Options
Backlit dot matrix LCD that offers an exceptionally intuitive user interface that is easy to read and understand.

Tutorial Mode
Tutorial mode for step-by-step instructions to guide a first-time user in how to perform a measurement correctly.

Reaction Timer
Built-in reaction timer that ensures consistency amongst multiple users.

HI97771  Features/Benefits

Stable Light Source

  • The internal reference system of the HI97771  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.

Mulitple Measurement Methods

  • Users can select the use of powder reagents supplied in packets or the use of low cost liquid reagents supplied in a dropper bottle.

Built-in Reaction Timer

  • Waiting the proper reaction time is of key importance when performing colorimetric measurements. The countdown timer displays the time remaining until a measurement will be taken, ensuring consistent results between sample measurements and users.

Large Cuvette Size

  • The sample cell of the HI97771 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 HI97771 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.

Specifications Hanna HI-97771 Free and Ultra High Range Total Chlorine Photometer

 
SKU HI97771-web
Product Name Free Chlorine and Ultra High Range Total Chlorine Portable Photometer – HI97771
Quote Required Yes
Free Chlorine Range 0.00 to 5.00 mg/L (as Cl2)
Free Chlorine Resolution 0.01 mg/L
Free Chlorine Accuracy ±0.03 mg/L ±3% of reading
Total Chlorine Range 0 to 500 mg/L (as Cl2)
Total Chlorine Resolution 1 mg/L
Total Chlorine Accuracy ±3 mg/L ±3% of reading
Chlorine Method free chlorine
Photometer/Colorimeter Light Source Light emitting diode
Photometer/Colorimeter Light Detector silicon photocell with narrow band interference filter @ 525 nm
Bandpass Filter Bandwidth 8 nm
Bandpass Filter Wavelength Accuracy ±1.0 nm
Cuvette Type round, 24.6 mm diameter (22 mm inside)
GLP date, time of last calibration
Display 128 x 64 pixel B/W LCD with backlight
Logging Type automatic logging
Logging Memory 50 measurement
Battery Type/Life 1.5V AA battery (3 pcs.) / > 800 measurements (without backlight)
Automatic Shut-Off After 15 minutes of inactivity (30 minutes before a READ measurement)
Environment 0 to 50°C (32 to 122°F); relative humidity
Weight 380 g (13.4 oz.) with batteries
Dimensions 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0″)
Ordering Information HI97771 is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate

 


Hanna HI-97771 – Manual


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Additional Information

Brand

Hanna

Model

HI-97771

Made In

Romania

Weight

2 kg

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