Product Description
Hanna HI-96722 Cyanuric Acid Portable Photometer
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The HI96722 portable photometer is for the measurement of cyanuric. Hanna’s portable photometers feature an advanced optical system; the combination of a special tungsten lamp, a narrow band interference filter, and silicon photodetector ensure accurate photometric readings every time. The Hanna exclusive CAL Check™ feature utilizes ready-made, NIST traceable standards to verify both meter validation and calibration. The exclusive cuvette locking system ensures that the cuvette is inserted into the measurement cell in the same position every time to maintain a consistent path length.
Features at-a-glance
CAL Check™ – Allows for performance verification and calibration of the meter using a CAL Check NIST traceable secondary standard.
GLP – Records the date of the last user calibration performed.
Built in timer – Allows the use of a timer to ensure the appropriate 3 minutes and 30 seconds reaction time is used for the chemical reaction. At the end of the timer countdown the meter will automatically take the reading. This feature ensures consistency across multiple users.
Indexing indent on meter – The meter has an indent that allows for a lock and key fit with the cuvette cap. This ensures that the cuvette is indexed consistently (same position) in order to maintain the same path length for accurate results.
Cooling Lamp Indicator – It is necessary to maintain a consistent temperature of the optical components in order to maintain a narrow wavelength band of light. This photometer has a cooling lamp indicator that is displayed for a short period of time before each measurement in order to allow the components to cool and obtain the highest accuracy possible.
Error messages – Messages on display alerting to problems including no cap, over range and under range readings, and light source error.
Auto-shut off – Automatic shut off after 10 minutes of non-use when the meter is in measurement mode. Prevents wastage of batteries in the event the meter is accidentally not turned off.
Battery status indicator
The instrument has a battery level indicator to display reaming life as follows:
- 3 lines for 100 % capacity
- 2 lines for 66 % capacity
- 1 line for 33 % capacity
- Battery icon blinks when the capacity is less than 10 %.
Units of measure – Appropriate unit of measure is displayed along with reading.
Cyanuric acid (CYA) is best known as a stabilizing reagent for chlorine. It is widely applied in swimming pool and spa treatment programs to slow down the decomposition of hypochlorous acid. In outside pool areas, this process is accelerated by the effects of UV rays. When applied properly it can save up to 80% of normal chlorine consumption in pools during peak months. Cyanuric acid is also used in chlorinated beaches, selective herbicides and whitening agents.
The HI96722 uses an adaptation of the turbidimetric method to measure cyanuric acid concentrations in the 0 to 80 mg/L (ppm) range. When added to a sample containing cyanuric acid, the reagent will react to cause a white suspension; the greater the concentration of cyanuric acid, 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 cyanuric acid, a narrow band interference filter at 525 nm (green) allows only green light to be detected by the silicon photodetector. As the change in color of the reacted sample increases, absorbance of the specific wavelength of light also increases, while transmittance decreases.
CAL Check™ standards with certificate
The HI96722-11 CAL Check™ standards are used for calibration and performance verification of photometers with the CAL Check™ function.
Supplied with Certificate of Analysis
- Lot number
- Expiration date
- Standard value @ 25 °C
- Reference meter NIST traceable
Provided storage containers
- Light tight
- Protects from accidental breakage
Specifications Hanna HI-96722 Cyanuric Acid Portable Photometer
| SKU | HI96722 |
|---|---|
| Product Name | Cyanuric Acid Portable Photometer – HI96722 |
| Quote Required | Yes |
| Cyanuric Acid Range | 0 to 80 mg/L |
| Cyanuric Acid Resolution | 1 mg/L |
| Cyanuric Acid Accuracy | ±1 mg/L ±15% of reading @ 25°C |
| Cyanuric Acid Method | Adaptation of the turbidimetric method. The reaction between cyanuric acid and the reagent causes a white suspension in the sample. |
| Photometer/Colorimeter Light Source | Tungsten lamp |
| Photometer/Colorimeter Light Detector | Silicon Photocell with narrow band interference filter @ 525 nm |
| Battery Type/Life | 9V battery |
| Automatic Shut-Off | after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Weight | 360 g (12.7 oz.). |
| Dimensions | 192 x 104 x 69 mm (7.6 x 4.1 x 2.7”) |
| Ordering Information | HI96722 is supplied with two sample cuvettes with caps, 9V battery, instrument quality certificate, and instruction manual. |
Hanna HI-96722 – Manual
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