HI97771 is an advanced portable photometer for the measurement of free and ultra high range total 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. .
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/L. HI97771 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.
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.
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.
Stable Light Source:
High Efficiency Light Source:
High Quality Filters:
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:
Mulitple Measurement Methods:
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:
Intuitive Dot Matrix Display:
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 | 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 |
Malaysia
