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Photometer is designed to measure pH, Alkalinity, Free & Total Chlorine, and Cyanuric Acid in swimming pools, hot tubs, and spas. This photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any user, making it the perfect photometer for your water quality testing needs.
- No warm up time before taking a measurement
- Tutorial mode for step-by-step instructions
- CAL Check to verify meter performance
Advanced LED optical system
Innovative optical design that utilizes a reference detector and focusing lens to eliminate errors from changes in the light source and from imperfections in the glass cuvette.
CAL Check™
Validate instrument performance at any time using CAL Check cuvettes made with NIST traceable standards. The CAL Check screen guides the user step-by-step through the validation process and user calibration.
- On-screen tutorial mode with animations
- Guides users step-by-step through the measurement process
- Waterproof and floating IP67 case
- Unit of measure is displayed along with reading
- Built-in timer
- Built-in reaction timer that ensures consistency between tests.
- Error messages on display
- Alerts to problems including no cap, high zero, and standard too low
- GLP data
- Displays the last calibration date.
- Auto logging
- Battery status indicator
- Auto-shut off
Significance of Use
Chlorine is the most commonly used water disinfectant used by homeowners, hotels, and commercial businesses. In swimming pools, spas, and similar applications, cyanuric acid helps to stabilize chlorine and prevent its breakdown, especially in sunlight. Frequent testing of both cyanuric acid and pH helps to minimize chlorine consumption.
Specifications
|
pH |
Range |
6.5 to 8.5 pH |
|
Resolution |
0.1 pH |
|
|
Accuracy @25°C (77°F) |
±0.1 pH of reading at 25°C |
|
|
Method |
adaptation of the Phenol Red method |
|
|
Alkalinity |
Range |
0 to 500 mg/L (as CaCO₃) |
|
Resolution |
1 mg/L |
|
|
Accuracy @25°C (77°F) |
±5 mg/L ±5% of reading at 25°C |
|
|
Method |
Colorimetric method |
|
|
Chlorine, Free and Total |
Range (all methods) |
0.00 to 5.00 mg/L (as Cl₂) |
|
Resolution (all methods) |
0.01 mg/L |
|
|
Accuracy @25°C (77°F) (all methods) |
±0.03 mg/L ±3% of reading at 25°C |
|
|
Method |
adaptation of the EPA DPD method 330.5 |
|
|
Cyanuric Acid |
Range |
0 to 80 mg/L (as CYA) |
|
Resolution |
1 mg/L |
|
|
Accuracy @25°C (77°F) |
±1 mg/L ±15% of reading at 25 °C |
|
|
Method |
adaptation of the turbidimetric method |
|
Measurement System |
Light Source |
light emitting diode |
|
Bandpass filters |
525 nm and 610 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 READ measurement) |
|
|
Battery type / Life |
alkaline 1.5 V AA (3) / > 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.) |
Ordering Information
HI97104 and HI971044 is supplied with sample cuvettes (2), sample caps (2), plastic stoppers (2), 1.5V AA batteries (3), instrument quality certificate, and instruction manual.
*CAL Check standards and testing reagents sold separately
HI97104C and HI971044C includes photometer, CAL Check standards, sample cuvettes (2), sample caps (2), plastic stoppers (2), 1.5V AA batteries (3), cuvette wiping cloth, scissors, CAL Check standard certificate, instrument quality certificate, instruction manual, and HI7101414 rigid carrying case.
*Reagents sold separately
