HI97104 เครื่องวัด 4 IN 1 สำหรับวัด pH กรดไซยานูริก คลอรีนอิสระและคลอรีนรวมในน้ำ

HI97104 มี 2รุ่นดังนี้

• HI97104C หมายถึงรุ่นทีอยู่ในบรรจุภัณฑ์แบบกระเป๋าหิ้ว และมาพร้อมอุปกรณ์น้ำยา CAL Check™ (ต้องซื้อ Reagents เพิ่มเท่านี้น)
• HI97104 หมายถึงรุ่นทีมีแต่เครื่องวัด (ต้องซื้อน้ำยามาตรฐานเพิ่มเติมเองทั้งหมดได้แก่ น้ำยา CAL Check™ และ Reagents และกระเป๋าหิ้ว)

Chlorine is a common chemical used by many due to is disinfection properties. Free chlorine can exist in two forms and which form is present is based on the pH. At pH less than 7.6 the predominate form is hypochlorous acid (HOCl) while at pH greater than 7.6 the hypochlorite (OCl-) form becomes predominate.

This is very important when it comes to preventing biological growth in water or keeping a swimming pool safe since hypochlorous acid is 100 times more effective as a sanitizer. Total chlorine represents both the free chlorine and combined chlorine present. Combined chlorine is the chlorine bound to nitrogen substances such as ammonia.

In swimming pools combined chlorine that we can smell and is irritating to the eyes. The free chlorine measurement is subtracted from the total chlorine measurement in order to know how much combined chlorine is present. HI97104 is designed to measure swimming pool key water quality paramters. These parameters, in addition to chlorine, are pH, alkalinity, and cyanuric acid.

The HI97104 has an innovative optical system that offers superior performance in accuracy, repeatability, and the short amount of time it takes to perform a measurement. This compact, waterproof meter is extremely user friendly with a tutorial mode that walks the user graphically, step by step, in performing a measurement.

The use of a backlit dot matrix LED allows the use of virtual keys which makes the operation of the meter very intuitive including selecting different methods, reviewing GLP data, recalling the last 50 measurements, and customizing the meter to user preferences

 

Specification HI97104

• pH Range 6.5 to 8.5 pH
• pH Resolution 0.1 pH
• pH Accuracy ±0.1 pH
• pH Method phenol red method
• Alkalinity Range 0 to 500 mg/L (as CaCO3)
• Alkalinity Resolution 1 mg/L
• Alkalinity Accuracy ±5 mg/L ±5% of reading at 25 °C
• Alkalinity Method colorimetric method
• Free Chlorine Range 0.00 to 5.00 mg/L (as Cl2)
• Free Chlorine Resolution 0.01 mg/L
• Free Chlorine Accuracy ±0.03 mg/L ±3% of reading at 25 °C
• Total Chlorine Range 0.00 to 5.00 mg/L (as Cl2)
• Total Chlorine Resolution 0.01 mg/L
• Total Chlorine Accuracy ±0.03 mg/L ±3% of reading at 25 °C
• Chlorine Method adaptation of US EPA method 330.5, DPD Colorimetric method
• Cyanuric Acid Range 0 to 80 mg/L (as CYA)
• Cyanuric Acid Resolution 1 mg/L
• Cyanuric Acid Accuracy ±1 mg/L ±15% of reading at 25 °C
• Cyanuric Acid Method Adaptation of turbidimetric method
• Photometer/Colorimeter Light Source light emitting diode
• Photometer/Colorimeter Light Detector silicon photocell with narrow band interference filter @ 525 nm and 610 nm
• Bandpass Filter Bandwidth 8 nm
• Bandpass Filter Wavelength Accuracy ±1.0 nm
• Cuvette Type round 24.6 mm diameter (22 mm inside)
• Display 128 x 64 pixel B/W LCD with backlight
• Data Points Stored 50 readings
• Battery Type/Life 1.5 V AA Alkaline (3 pcs.) / > 800 measurements (without backlight)
• Automatic Shut-Off after 15 minutes of inactivity(30 minutes before a READ measurement)
• Environment 0 to 50 °C (32 to 122 °F);
• 0 to 100% RH
• IP67, floating case
• Weight 380 g (13.4 oz.)
• Dimensions 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0″)