HI97101 is an advanced portable photometer for the measurement of bromine, chlorine, cyanuric acid, iodine, iron, and pH 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.
The HI97101offers multiple methods within one meter. Bromine, chlorine, and iodine determination use the DPD method; iron determination uses an adaptation of the TPTZ method; pH determination uses the phenol red method; cyanuric acid determination uses an adaptation of the turbidimetric method. The reagents are in powder and liquid form depending on the parameter being tested.
Chlorine is the most commonly used water disinfectant used by homeowners, hotels, and commercial businesses. In swimming pools, spas, and similar applications, cyanuric acid helps to stabilize chlorine and prevent its breakdown, especially in sunlight. Frequent testing of both cyanuric acid and pH helps to minimize chlorine consumption. The disinfecting properties of bromine and iodine have led to their use as alternatives to chlorine. One of the most common applications of iodine is poultry industry process water, while bromine is used in sanitization of cooling towers and pools and spas.
When the appropriate reagent is added to the sample, it will display a color change; 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 all six parameters, a narrow band interference filter at 525 nm (green) allows only green light to be detected by the silicon photodetector and omits all other visible light emitted from the tungsten lamp. As the change in color of the reacted sample increases, absorbance of the specific wavelength of light also increases, while transmittance decreases.
CAL Check
Advanced features including CAL-Check to verify performance and if necessary, recalibrate.
Setup Options
Setup options for meter personalization include date and time format, language, and enabling the tutorial mode.
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:
Large Cuvette Size:
Intuitive Dot Matrix Display:
Auto-off Protection:
| SKU | HI97101-web |
|---|---|
| Product Name | Bromine, Chlorine, Cyanuric Acid, Iodine, Iron, and pH Portable Photometer with CAL Check – HI97101 |
| Quote Required | Yes |
| pH Range | 6.5 to 8.5 pH |
| pH Resolution | 0.1 pH |
| pH Accuracy | ±0.1 pH of reading at 25°C |
| pH Method | Adaptation of the Phenol Red Method |
| Bromine Range | 0.00 to 10.00 mg/L (as Br2) |
| Bromine Resolution | 0.01 mg/L |
| Bromine Accuracy | ±0.08 mg/L ±3% of reading at 25°C |
| Bromine Method | adaptation of Standard Methods for the Examination of Water and Wastewater, 23rd Edition, DPD Method |
| 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 at 25 °C |
| Total Chlorine Range | 0.00 to 5.00 mg/L (as Cl2) |
| Total Chlorine Resolution | 0.01 mg/L |
| Total Chlorine Accuracy | ±0.03 mg/L ±3% of reading at 25°C |
| Chlorine Method | adaptation of the US EPA Method 330.5, DPD Colorimetric Method |
| Cyanuric Acid Range | 0 to 80 mg/L (as CYA) |
| Cyanuric Acid Resolution | 1 mg/L |
| Cyanuric Acid Accuracy | ±1 mg/L ±15% of reading at 25 °C |
| Cyanuric Acid Method | adaptation of the Turbidimetric Method |
| Iodine Range | 0.0 to 12.5 mg/L (as I2) |
| Iodine Resolution | 0.1 mg/L |
| Iodine Accuracy | ±0.1 mg/L ±5% of reading at 25°C |
| Iodine Method | adaptation of Standard Methods for the Examination of Water and Wastewater, 23rd Edition, DPD Method |
| Photometer/Colorimeter Light Source | LED with 525 nm bandpass filter |
| 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 | yes |
| Display | 128 x 64 pixel B/W LCD with backlight |
| Logging Memory | 50 readings |
| Battery Type/Life | 1.5 V AA Alkaline (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); 0 to 100% RH (IP67) |
| Weight | 380 g (13.4 oz.) |
| Dimensions | 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0'') |
| Ordering Information | HI97101C 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 packaged in a rugged, thermoformed, carrying case. |
