COD Meter
COD Meter ensures precise, stable COD analysis with LED light, NIST-traceable calibration, large cuvette support, and intuitive LCD interface for easy operation.
- Stable LED light source ensures accurate and consistent COD measurements
- CAL Check functionality for NIST-traceable calibration and verification
- Large 25 mm cuvette support improves sensitivity and precision
Features
Stable Light Source: The HI97713 COD Meter internal reference system compensates for drifts caused by power fluctuations or ambient temperature changes. This ensures fast, stable readings between blank (zero) and sample measurements.
High-Efficiency LED Light: LEDs provide superior performance compared to tungsten lamps, delivering more light while using less power. They produce minimal heat, helping maintain electronic stability.
High-Quality Optical Filters: Enhanced filters improve wavelength accuracy and deliver a stronger signal, resulting in higher measurement stability and reduced wavelength errors.
Greater Light Yield: A focusing convex lens collects all light exiting the cuvette, minimizing errors from scratches or imperfections and eliminating the need for cuvette indexing.
CAL Check Functionality: Hanna’s exclusive CAL Check feature allows performance verification and calibration using NIST-traceable standards. The CAL Check vials simulate specific absorbance values at each wavelength to confirm accuracy.
More Features
Multiple Measurement Methods: Users can display results in phosphate-phosphorous (PO4-3-P), phosphate (PO4-3), or phosphorous pentoxide (P2O5).
Built-in Reaction Timer: The countdown timer ensures consistent reaction times, promoting accurate colorimetric measurements.
Large Cuvette Size: The HI97713 accommodates a 25 mm path length glass cuvette, allowing light to pass through more solution for accurate readings even in low absorbance samples.
Intuitive Dot Matrix Display: The backlit graphic LCD includes virtual keys, a battery status indicator, and error messages. A dedicated help key provides contextual guidance throughout setup and measurement.
Auto-off Protection: Powered by three AA batteries for up to 800 measurements, the meter automatically shuts off after 15 minutes of inactivity to conserve battery life.
| Phosphate Range | 0.00 to 2.50 mg/L (as PO43-) |
| Phosphate Resolution | 0.01 mg/L |
| Phosphate Accuracy | ±0.04 mg/L ±4% of reading at 25 °C |
| Phosphate Method | adaptation of the Ascorbic Acid Method |
| Photometer/Colorimeter Light Source | LED with 610 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 in.) |
Why Choose COD Meter?
The HI97713 COD Meter offers unmatched precision and convenience for chemical oxygen demand testing. Its stable LED light source compensates for power fluctuations and ambient temperature changes, providing reliable and reproducible measurements. High-quality optical filters and a focusing lens minimize errors and ensure accurate wavelength detection. Users can select different measurement units, while the built-in reaction timer ensures consistent timing for each test. Hanna’s exclusive CAL Check feature allows verification and calibration against NIST standards, further enhancing confidence in results. The meter supports large 25 mm cuvettes, improving sensitivity even with low absorbance samples. With an intuitive LCD display, virtual keys, and auto-off protection, the HI97713 is user-friendly, energy-efficient, and ideal for laboratory, environmental, or field applications.
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