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Range
- pH: 6.5 to 8.5 pH
- Chlorine: 0.00 to 5.00 mg/L (ppm)
- Total Hardness: 0.00 to 4.70 mg/L (ppm)
- Iron LR: 0 to 1.60 mg/L (ppm)
Resolution
- pH: 0.1 pH
- Chlorine: 0.01 mg/L under 3.50 mg/L; 0.10 mg/L above 3.50 mg/L
- Total Hardness: 0.01 mg/L
- Iron LR: 0.01 mg/L
Accuracy @25°C
- pH: ±0.1 pH
- Chlorine: ±0.03 mg/L ±3% of reading
- Total Hardness: ±0.11 mg/L ±5% of reading
- Iron LR: ±0.01 mg/L ±8% of reading
Light Source: tungsten lamp
Light Detector: silicon photocell with narrow band interference filter @ 525 nm
Power Supply: 9V battery
Auto-off: after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder.
Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions: 192 x 104 x 69 mm (7.6 x 4.1 x 2.7")
Weight: 360 g (12.7 oz.)
Method
- pH: Phenol Red method
- Chlorine: adaptation of the USEPA method 330.5and Standard Method 4500-Cl G
- Total Hardness: adaptation of the Standard Methods for the examination of Water and Wastewater, 18th ed., colorimetric method
- Iron LR: adaptation of the TPTZ method
Order Information: HI 96745 is supplied with sample cuvettes (2) with caps, battery and instructions.
