Product Overview
HI97745 is an advanced portable photometer for measuring pH, chlorine (free and total), hardness (calcium, magnesium and total) and iron in water. The instrument features an outstanding optical system that uses a reference detector and narrow-band interference filters for extremely fast and repeatable measurements.
Key Features
- CAL Check: instrument performance verification.
- Tutorial mode: step-by-step instructions.
- Multiple chemical forms: results displayed in several chemical forms.
Feature Details
Better features, better testing: let your photometer guide you through setup, calibration and testing with on-screen tutorials and animations, so you always know the next step. Access tutorial mode at any stage of the setup or measurement process using the dedicated help key. If the meter is switched on accidentally, the auto-shut-off function extends battery life, giving you peace of mind and saving energy. When the battery level drops below 10%, a warning symbol flashes to indicate low battery. When a low battery could affect your results, the meter switches off to avoid erroneous readings caused by low battery.
Data logging: missed a measurement? No need to worry, as your photometer automatically records the last 50 measurements. Use the log recall menu to view the results instantly.
CAL CheckTM verification: Hanna's exclusive CAL CheckTM feature provides a stress-free, simple way to make sure your photometer is working properly. Simply insert the certified CAL CheckTM standards and let your meter guide you through verification. If your photometer is out of specification for any reason, simply calibrate it using your standards.
Advanced optical system: light-emitting diodes (LEDs) provide more light while using less power, and narrow-band interference filters deliver more accurate and repeatable readings.
Built better: the new IP67-rated body design withstands real-life impacts, drops and spills, ensuring maximum performance in any environment. The internal optics are sealed against outside dust, dirt and water. It also floats, in case you drop the meter into water. The photometer uses a dedicated positive-locking system to ensure the cuvette is placed in the same position in the holder every time for accurate readings.
Portable design: the backlit LCD fits comfortably in your hand for mobile testing or sits on a table for benchtop use, providing at-a-glance readings from any angle, day or night. The supplied AA batteries provide a lifespan of more than 800 measurements.
Packing List
We believe buying a meter should be simple. Your HI97745 photometer includes many of the essential accessories you need for successful measurements.
Each HI97745 is supplied with:
- Sample cuvettes (2)
- Sample caps (2)
- Plastic stoppers (2)
- Alkaline batteries: 1.5V AA (3)
- Instruction manual
- Instrument quality certificate
Upgrade to the photometer kit (including CAL CheckTM standards) for the most economical testing option.
Each HI97745C is supplied with:
- Sample cuvettes (2)
- Sample caps (2)
- Plastic stoppers (2)
- ZERO‑CAL CheckTM Cuvette A
- HI97701B-CAL Check Cuvette B for free and total chlorine (powder and liquid)
- HI97710B-CAL Check Cuvette B for pH
- HI97719B-CAL Check Cuvette B for magnesium hardness and total hardness
- HI97746B-CAL Check Cuvette B for low-range iron
- Cloth for wiping cuvettes
- Scissors
- Alkaline batteries: 1.5V AA (3)
- Instruction manual
- Instrument quality certificate
- CAL CheckTM standards certificate
Notes on Use
*Products classified as hazardous goods can only be shipped by ground transport.
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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