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HI782 Marine Nitrate High Range Colorimeter is specifically designed for the rapid and accurate determination of high-level nitrate in seawater aquariums and marine applications. With a digital reading, there is no more struggling to visually determine color.
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Measuring range up to 75.0 ppm
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Less complicated laboratory-grade accuracy - only 1 reagent required
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Simple and intuitive digital operation
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Compact and precise, whether at home, at work, or on the go
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* Products classified as dangerous goods can only be shipped by ground transport.
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Nitrate is the final step in the nitrogen cycle. Excess nitrate in seawater aquariums promotes the growth of algae and undesirable organisms such as dinoflagellates. HI782 is a simple, accurate, and cost-effective method for measuring nitrate (as NO3-) from 0.0 to 75.0 ppm in seawater aquariums.
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The HI782 Nitrate Checker HC uses the zinc reduction method to colorimetrically measure nitrate concentration. HI782 provides fast, accurate results in four simple steps:
Features at a glance:
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For use with saltwater samples.
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More accurate than chemical test reagent kits.
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Dedicated to a single parameter.
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Small size and easy to use.
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Error-free digital reading.
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Ideal for aquarium and marine biology applications.
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HI782 High Range Nitrate Checker vs. HI781 Low Range Nitrate Checker
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HI782 is designed to quickly and easily measure nitrate levels for aquarists with above-average nutrient levels. This includes saltwater aquariums with fish only, or corals that can tolerate nitrate levels of 30 ppm or higher.
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Extremely low nitrate levels are critical for many saltwater reef aquariums, as nitrate can cause damage or even death to certain delicate corals and invertebrates. Therefore, HI781 offers unparalleled accuracy in measuring extremely low nitrate levels (0.00 to 5.00 ppm). For freshwater samples, Hanna Instruments recommends the HI97728 Nitrate Portable Photometer.
| Specification Name | Detail |
|---|---|
| SKU | HI782 |
| Range | 0.0 to 75.0 ppm (as NO3–) |
| Resolution | 0.1 ppm |
| Accuracy @ 25°C (77°F) | ±2.0 ppm ±5% of reading @ 25 °C (77 °F) |
| Light Source | LED @ 525 nm |
| Light Detector | silicon photocell |
| Method | Zinc reduction method. The reaction between nitrate and the reagent causes a pink tint in the sample. This checker has been developed to work with seawater samples. |
| Battery Type | (1) 1.5V AAA |
| Auto shut-off | after ten minutes of non-use |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Dimensions | 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) |
| Weight | 64 g (2.3 oz) |
| Ordering Information | Each HI782 is delivered in a case with custom insert and is supplied with sample cuvette and cap (2 pcs.), Marine Nitrate High Range reagent starter kit (reagents for 10 tests), 3 mL Pasteur pipette (1 pc.), 1.5V AAA Alkaline battery (1 pc.), and Instruction manual. |
| Reagent Set | HI782-25 (25 tests) |
| Calibration Check | HI782-11 |
| Warranty | 1 year |
Case Studies
Municipal Wastewater Treatment · Hanna — Stock Configuration Case
Project Overview
The site is the inlet, biological and outlet stages of a municipal plant. The customer wanted Hanna properly configured on the existing plant, with the aim of covering portable and laboratory water testing with Hanna instruments.
Technical Challenges
What actually causes trouble is high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. All of this means the Hanna configuration has to involve selected by parameter set, accuracy and field portability.
Configuration
Supply and installation were organised through the stock channel: configuring from stock and delivered quickly. On site this meant selected by parameter set, accuracy and field portability, checked line by line against: stable compliance with Grade 1A discharge limits and online data reporting.
Performance
After commissioning the outcome is results available on site, reducing lab re-checks, and the readings are now used for process tuning.
Food & Beverage · Hanna — Stock Configuration Case
Site Conditions
This is a Food & Beverage customer whose plant is at dosing, pasteurising, filling and CIP stages. The main task was covering portable and laboratory water testing with Hanna instruments.
The Problem
The difficulty lies in syrups, dairy and beverages that scale easily, under strict hygienic requirements; at the same time frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. Specification therefore means selected by parameter set, accuracy and field portability.
What We Did
We took a stock channel approach — configuring from stock and delivered quickly. Delivery was built around selected by parameter set, accuracy and field portability, with point-by-point checks on: food-safety and hygienic design per 3-A / EHEDG.
Operating Outcome
In service the system performs as intended — results available on site, reducing lab re-checks, with routine maintenance falling noticeably.
Chemical & Pharmaceutical · Hanna — Stock Configuration Case
Application Context
reactors, metering vessels and finished-product tanks is a typical Chemical & Pharmaceutical duty. The project started from Hanna, focusing on covering portable and laboratory water testing with Hanna instruments.
Process Constraints
corrosion plus Ex protection shortens instrument life and makes downtime costly, and highly corrosive media with solvents and crystallisation, partly in explosive atmospheres only amplify it. The Hanna specification must therefore cover selected by parameter set, accuracy and field portability.
Delivery Approach
Delivery was handled as the stock channel — configuring from stock and delivered quickly. Execution centred on selected by parameter set, accuracy and field portability, together with Ex certification and GMP traceability of records.
Field Results
Operation shows the benefit clearly — results available on site, reducing lab re-checks, with confidence in this measuring point improving markedly.
Power & Energy · Hanna — Stock Configuration Case
Customer Profile
The typical setting in Power & Energy is boiler feedwater, turbine condensate and FGD/DeNOx systems. The measuring point is Hanna; the focus is covering portable and laboratory water testing with Hanna instruments.
Key Difficulties
Conditions are high temperature and pressure with both steam and saline water and, on top of that, drift under high temperature and pressure, with very costly unplanned outages, which a standard configuration cannot handle for long. The design therefore starts with selected by parameter set, accuracy and field portability.
Implementation
The scope ran through the stock channel: configuring from stock and delivered quickly. Technically it hinges on selected by parameter set, accuracy and field portability, and on these requirements: compliance with power-industry codes and unit availability targets.
Customer Benefit
In practice this means results available on site, reducing lab re-checks, which cut the workload on the site maintenance team.
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