Hanna Instruments HI 83208 - Manual (Page 59)

59
Phosphate LR
PHOSPHATE LOW RANGE
SPECIFICATIONS
Range 0.00 to 2.50 mg/L
Resolution 0.01 mg/L
Accuracy ±0.04 mg/L ±4% of reading at 25 °C
Typical EMC Dev. ±0.01 mg/L
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the Ascorbic Acid method. The reaction between phosphate and the
reagent causes a blue tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93713-0 Powder reagent 1 packet
REAGENT SETS
HI 93713-01 Reagents for 100 tests
HI 93713-03 Reagents for 300 tests
For other accessories see page 73.
MEASUREMENT PROCEDURE
• Select the Phosphate LR method using the procedure
described in the Method Selection section (see page 12).
• Rinse, cap and shake the cuvette several times with unreacted
sample. Fill the cuvette with 10 mL of sample up to the
mark and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette and add the content of one packet of
HI 93713-0 reagent. Replace the cap and shake gently
(for about 2 minutes) until the powder is completely
dissolved.
10 mL