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.
Hanna Instruments HI-97790 Free and Total Chlorine Photometer
- Single-sample measurement
- Kit option available
- Auto data logging
SKU
HI-97790/C
The Hanna HI-97790 is a total and free chlorine photometer suitable for measuring water and wastewater. It measures free chlorine and then total chlorine with only one water sample. It has a positive-locking system to keep the vials in the same place for each measurement. It also has a Cal Check function, a reaction timer, an on-screen tutorial, and auto data logging. A kit option includes additional extras and a carrying case to store and transport your equipment.
Discover the HI-97790 Free and Total Chlorine Photometer
Key Features
- Single-sample measurement: Measures both free and total chlorine using one sample for efficiency and compliance.
- Portable design: Battery-powered. Includes battery status indicator and auto shut-off.
- Field-friendly: Compact and suitable for various environments.
- Auto data logging: Stores up to 50 results.
- User-friendly interface: Displays measurement unit on screen and includes an error prevention system (e.g. cap missing, high zero).
- On-screen tutorial mode: Step-by-step instructions for accurate testing, accessible directly from the device.
- Advanced LED optical system: Uses a reference detector and lens for consistent results and reduced power consumption.
- Sealed system with vial-locking: Prevents contamination and ensures vials are always positioned consistently.
- Built-in reaction timer: Ensures test timing consistency; progress is shown on the display.
- Cal Check functionality: Validate and calibrate performance with NIST-traceable standards.
- Waterproof and floating design: IP67-rated case that floats for easy retrieval and use in wet environments.
- Industry applications: Ideal for drinking water, wastewater, swimming pools, and hot tubs.
- Efficient chlorine testing: One sample can measure both chlorine types in succession.
- Easy data access: Logged measurements can be recalled directly on the meter.
What's Included?
- HI-97790 (Meter Only)
- Free and Total Chlorine Photometer
- Sample cuvette (2)
- Sample cuvette cap (2)
- Plastic stopper (2)
- 1.5V AA Alkaline battery (3)
- Quick reference guide
- Instructions for manual download and instrument quality certificate
- HI-97790C (Kit)
- Free and Total Chlorine Photometer
- Sample cuvette (2)
- Sample cuvette cap (2)
- Plastic stopper (2)
- A ZERO - CAL Check™ Cuvette A
- HI-97701B - CAL Check Cuvette B for Free and Total Chlorine
- Cloth for wiping cuvettes
- Scissors
- 1.5V AA Alkaline battery (3)
- Quick reference guide
- Instructions for manual download and instrument quality certificate
- Rugged carrying case
Product Range
- Hanna Instruments HI-97790 Free and Total Chlorine Photometer
- Hanna Instruments HI-97790C Free and Total Chlorine Photometer Kit
Technical Information
Specification
| Chlorine (all methods) | |
|---|---|
| Range | 0.00 to 5.00 mg/L (as Cl₂) |
| Resolution | 0.01 mg/L |
| Accuracy | ±0.03 mg/L ±3% of reading at 25 °C |
| Method | Adaptation of Standard Methods, 4500-Cl G, DPD Colorimetric Method |
| Measurement system | |
| Light source | Light-emitting diode |
| Bandpass filter | 525 nm |
| Bandpass filter bandwidth | 8 nm |
| Bandpass filter wavelength accuracy | ±1.0 nm |
| Light Detector | Silicon photocell |
| Cuvette type | Round 24.6 mm diameter (22 mm inside) |
| Additional specifications | |
| Auto logging | 50 readings |
| Display | 128 x 64 pixel B/W LCD with backlight |
| Auto-off | After 15 minutes of inactivity (30 minutes before a Free Cl2 / Total Cl2 measurement) |
| Battery type | Alkaline 1.5 V AA (3) |
| Battery Life | Above 800 measurements (without backlight) |
| Environment | 0 to 50 °C (32 to 122 °F); 0 to 100% RH, non-serviceable |
| Dimensions | 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0") |
| Weight | 380 g (13.4 oz.); with batteries |
| Casing | IP67, floating case |
Document Downloads
Additional Information
SKU
HI-97790/C
Hanna Instruments HI-97790 Free and Total Chlorine Photometer
£500.00
£600.00 inc vat
£500.00
£600.00 inc vat