HI97735 Portable Total Hardness Photometer

HI97735 is an advanced portable photometer for the measurement of total hardness in water up to 750 mg/L (ppm). This meter has 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 for performance verification and calibration

• More Information

  Hardness, Total Range	low range: 0 to 250 mg/L (as CaCO3) medium range: 200 to 500 mg/L (as CaCO3) high range: 400 to 750 mg/L (as CaCO3)
  Hardness, Total Resolution	1 mg/L
  Hardness, Total Accuracy	low range: ±5 mg/L ±4% of reading at 25 °C medium range: ±7 mg/L ±3% of reading at 25 °C high range: ±10 mg/L ±2% of reading at 25 °C
  Hardness, Total Method	adaptation of the EPA Recommended Method 130.1
  Photometer/Colorimeter Light Source	LED with 466 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)
  Environment	0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing
  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	HI97735C (kit) 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. HI97735 (meter only) is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate.