Hanna HI977 Series Portable Spectrophotometer
| Brand | Hanna Instruments |
|---|---|
| Origin | Italy |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | HI977 Series |
| Price | USD 2,950 (FOB Italy) |
Overview
The Hanna HI977 Series Portable Spectrophotometer is an engineered optical measurement system designed for accurate, field-deployable quantitative analysis of water and aqueous solutions. Based on single-beam visible-light spectrophotometry (380–760 nm wavelength range), the instrument employs pre-programmed, NIST-traceable calibration curves for over 70 water quality parameters—including nitrate, phosphate, ammonia, chlorine, hardness, iron, copper, and manganese. Its optical architecture integrates a high-stability LED light source, precision interference filters, and a silicon photodiode detector to ensure consistent photometric performance under variable ambient conditions. Unlike benchtop instruments requiring controlled lab environments, the HI977 Series is optimized for rugged portability without compromising analytical integrity—making it suitable for routine monitoring where sample transport is impractical or time-sensitive decisions are required.
Key Features
- Rugged IP67-rated housing with rubberized overmold for dust/water resistance during field use
- Integrated rechargeable lithium-ion battery supporting >1,000 measurements per charge (typical usage)
- Large backlit graphical LCD display with intuitive icon-driven interface and multilingual support (English, Spanish, French, German, Italian)
- Pre-installed method-specific calibrations validated against ISO 7027 (turbidity), ISO 6226 (chlorine), and APHA Standard Methods (e.g., 4500-Cl G for free chlorine)
- Automatic wavelength selection and zeroing via built-in reference cuvette detection
- On-device data logging with timestamped storage for up to 200 sample records, exportable via micro-USB to PC or LIMS
- Optical path length standardized at 10 mm using fixed-cuvette geometry to minimize operator-induced variability
Sample Compatibility & Compliance
The HI977 Series accepts standard 10 mm square glass or plastic cuvettes (including Hanna’s proprietary HI731340 and HI731333 models). It supports both liquid-phase colorimetric assays and turbidimetric measurements across pH 4–10 and temperature ranges of 10–40 °C. All factory-loaded methods comply with internationally recognized water testing standards, including ASTM D1253 (residual chlorine), ISO 15704 (phosphate), and EPA Method 365.3 (phosphorus). The device meets CE marking requirements per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and its firmware architecture supports audit-ready operation in GLP-compliant environments through user-accessible calibration logs and method version tracking.
Software & Data Management
No external software installation is required for basic operation; however, Hanna’s free HI Connect PC application enables advanced configuration, firmware updates, and full dataset export in CSV format. Each measurement record includes parameter ID, concentration value, unit, date/time stamp, operator ID (if assigned), and calibration status flag. The instrument supports optional password-protected user profiles (admin/operator/technician roles) and maintains tamper-evident calibration history with digital signatures. For regulated laboratories, the HI977 Series can be integrated into 21 CFR Part 11–compliant workflows when paired with validated third-party LIMS platforms that enforce electronic signature and audit trail requirements.
Applications
- Environmental monitoring: In-situ nutrient and contaminant screening in wastewater influent/effluent, surface water bodies, and groundwater wells
- Aquaculture and aquarium management: Real-time tracking of nitrogen cycle compounds (NH₃/NH₄⁺, NO₂⁻, NO₃⁻) and trace metals affecting aquatic organism health
- Municipal water distribution: Field verification of disinfectant residuals (free/chlorine dioxide) and corrosion indicators (Fe, Cu)
- Swimming pool and spa maintenance: Rapid quantification of sanitizer levels, cyanuric acid, and alkalinity-related parameters
- Academic teaching labs: Hands-on instruction in Beer-Lambert law fundamentals, method validation, and uncertainty propagation in photometric analysis
- Industrial process control: On-site verification of pretreatment chemistry in food/beverage, pharmaceutical, and semiconductor rinse water systems
FAQ
What is the optical resolution and wavelength accuracy of the HI977 Series?
The instrument utilizes narrow-band interference filters with ±1 nm center wavelength tolerance and spectral bandwidth <8 nm (FWHM), ensuring method-specific spectral isolation per ISO 17025-recommended practices.
Can the HI977 Series perform custom method development?
No—it operates exclusively with factory-programmed, chemically validated methods. Custom curve entry or absorbance-to-concentration conversion is not supported to maintain regulatory compliance and measurement traceability.
Is the device suitable for seawater or high-salinity samples?
Yes, provided appropriate matrix-matched calibration standards are used; salinity effects are minimized by method-specific compensation algorithms embedded in firmware v2.4 and later.
How often must the instrument be recalibrated?
Factory calibration is stable for 12 months under normal use; however, daily zeroing with deionized water and periodic verification using Hanna-certified check standards (e.g., HI93703-01 for chlorine) are required per ISO/IEC 17025 clause 7.7.
Does the HI977 Series support Bluetooth or Wi-Fi connectivity?
No—data transfer relies solely on micro-USB 2.0 for security and electromagnetic compatibility in industrial environments; wireless interfaces are omitted to preserve IP67 integrity and reduce attack surface in regulated settings.
