HI97720 Calcium Hardness Portable Photometer with CAL Check

HI97720 is an advanced portable photometer for the measurement of calcium hardness in water. This meter offers a superior optical system that utilizes a reference detector and narrow band interference filters for extremely fast and repeatable measurements.

• No warm up time before taking a measurement
• Tutorial mode for step-by-step instructions
• CAL Check to verify meter performance

• More Information

  Hardness, Calcium Range	0.00 to 2.70 mg/L (as CaCO3)
  Hardness, Calcium Resolution	0.01 mg/L
  Hardness, Calcium Accuracy	±0.11 mg/L ±5% of reading at 25°C
  Hardness, Calcium Method	adaptation of Standard Methods for the Examination of Water and Wastewater, 23rd Edition, Calmagite Method
  Photometer/Colorimeter Light Source	LED with 525 nm bandpass filter
  Photometer/Colorimeter Light Detector	silicon photocell
  Bandpass Filter Bandwidth	8 nm
  Bandpass Filter Wavelength Accuracy	±1.0 nm
  Cuvette Type	round 24.6 mm diameter (22 mm inside)
  GLP	yes
  Display	128 x 64 pixel B/W LCD with backlight
  Logging Memory	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)
  Weight	380 g (13.4 oz.)
  Dimensions	142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0″)
  Ordering Information	HI97720C is supplied with CAL Check standards, cuvettes (2), caps (2), plastic inserts for cuvette, (2), scissors, cuvette cleaning cloth, 1.5V AA batteries (3), instruction manual, and instrument quality certificate packaged in a rugged, thermoformed, carrying case. HI97720 is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate.