The Hanna HI-97728 is an auto-diagnostic portable photometer with an advanced optical system, a light-emitting diode (LED), and a narrow-band interference filter. It also incorporates a positive-locking system that securely positions cuvettes in the holder the same way every time.
The meter applies an adapted Cadmium Reduction Method to measure nitrate content in water. The range covers 0.0 to 30.0 mg/L (ppm). The CAL Check function lets users validate the instrument’s performance, and the CAL Check cuvettes incorporate NIST-traceable standards. The built-in tutorial mode provides step-by-step guidance through the measurement process.
The photometer is also available in a kit, which includes a carrying case to store and transport your equipment.
Key Features
Advanced LED Optical System - High luminous efficiency with low power consumption and minimal heat generation for stable performance.
CAL Check - Validate instrument performance anytime using NIST-traceable cuvettes with a guided step-by-step calibration process.
Auto Logging & GLP - Automatically records measurements with the last calibration date review for compliance tracking.
On-Screen Tutorial Mode - Step-by-step animations guide users through the measurement process.
Waterproof & Floating IP67 Case - Durable and designed for rugged environments.
Auto Shut-Off - Powers down after 15 minutes of inactivity and 30 minutes before a measurement to conserve battery.
Battery Status Indicator - Displays remaining battery life for uninterrupted operation.
Built-in Timer - Countdown display ensures precise reaction intervals for accurate measurements.
Error Messages - Alerts for issues like missing cap, high zero, or low standard.
Units of Measurement - Automatically displays the correct unit alongside the reading.
What's Included?
HI-97728 (Meter Only)
Portable Nitrate Photometer
Sample cuvette (2)
Sample cuvette cap (2)
Plastic stopper (2)
1.5V AA Alkaline batteries
Instrument quality certificate
Instruction manual
HI-97728C (Kit)
Portable Nitrate Photometer
Sample cuvette (2)
Sample cuvette cap (2)
Plastic stopper (2)
A ZERO-CAL Check Cuvette A
HI-97728B - CAL Check Cuvette B for Nitrate
Cloth for wiping cuvettes
Scissors
1.5V AA Alkaline batteries
CAL Check standard certificate
Instrument quality certificate
Instruction manual
Rugged carry case
Product Range
Hanna Instruments HI-97728 Portable Nitrate Photometer
Hanna Instruments HI-97728C Portable Nitrate Photometer Kit
£507.50
£609.00 inc vat
Free Delivery*
Important Notice This item is made-to-order exclusively for you once your order is placed. As a result, it is not eligible for cancellation or return under our standard policy. Your statutory rights remain unaffected.
Silicon photocell with narrow band interference filter @ 525nm
Power Supply
Alkaline 1.5AA batteries x 3
Auto-off
After 15 minutes of inactivity
Environment
0 to 50°C; 0 to 100% RH, non-serviceable
Dimensions
142.5 x 102.5 x 50.5 mm
Weight
380g
Method
Adaptation of the cadmium reduction method
PLEASE NOTE: In some cases, samples may contain other parameters which may interfere with results Ammonia and amines, as urea and primary aliphatic amines. Chloride above 100 mg/L (negative interference). Chlorine above 2 mg/L (positive interference). Copper (it must be absent). Interference may be caused by: Iron (III) (positive interference). Strong oxidising and reducing substances. Sulphide (it must be absent). Note: To ensure accurate results, perform the tests at room temperature, between 18 °C and 28°C. For best results, intensely coloured samples or suspended matter in large amounts will cause interference. Therefore sample should be adequately treated before performing the test.