Stable Light Source:

• The internal reference system of the HI97701 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.

 

Multitple 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 HI97701 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 HI97701 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

SKU: HI97701-web

Product Name: Free Chlorine Portable Photometer with CAL Check HI97701

Quote Required: Yes

Free Chlorine Range: 0.00 to 5.00 mg/L (as CI2)

Free Chlorine Resolution: 0.01 mg/L

Free Chlorine Accuracy: ±0.03 mg/L ±3% of reading

Chlorine Method: adaptation of the EPA 330.5 DPD method

Photometer/Colorimeter Light Source: Light emitting diode with narrow band interference filter @ 525 nm

Photometer/Colorimeter Light Detector: silicon photocell

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 1025 x 50.5 mm (5.6 x 4.0 x 2.0″)

Ordering information: HI97701 is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate.

Kit: HI97701C is supplied with CAL-Check standards, cuvettes (2), caps (2), plastic inserts for cuvette, (2), scissors, cuvette cleaning cloth,1.5V AA batteries (3), instruction manual, and instrument quality certificate.