Free Chlorine Portable Photometer with CAL Check

HI-97701 is an advanced portable photometer for the measurement of free chlorine 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.

• CAL Check to verify meter performance
• Tutorial mode for step-by-step instructions
• Choice of powder or cost saving liquid reagents

Chlorine is a common chemical used by many due to is disinfection, oxidation and bleaching properties. In swimming pools, drinking water, and food processing chlorine is used to disinfect and keep bacteria from growing. In metal finishing it used as an oxidizer to convert cyanide in wastewater to cyanate while in the pulp and paper industry it used to bleach wood pulp so that paper is white.  The HI97701 is designed to measure free chlorine in water up to 5.00 mg/L (ppm).

The HI97701 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.

HI97701 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.

 

• 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
With the use of our CAL Check standards the performance can be verified and if out od specification have the calibration value updated.

Tutorial Mode
When enabled, the tutorial mode will guide the user step by step through the measurement process .

Method Options
For chlorine, the pre-programmed calibration curves are updated based on a choice of either powder or liquid reagents.

Product Name	Free Chlorine Portable Photometer with CAL Check - HI-97701
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
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 102.5 x 50.5 mm (5.6 x 4.0 x 2.0")

Instruction

Brand : Hanna Instruments