Hanna Instruments c 99 Manuel D’Utilisation
46
CHROMIUM VI HIGH RANGE
CHROMIUM VI HIGH RANGE
CHROMIUM VI HIGH RANGE
CHROMIUM VI HIGH RANGE
CHROMIUM VI HIGH RANGE
Chromium VI HR
SPECIFICATIONS
Range
0 to 1000 µg/L
Resolution
1 µg/L
Accuracy
±5 µg/L ±4% of reading
Typical EMC
±1 µg/L
Deviation
Light Source
Tungsten lamp with narrow band interference
filter @ 525 nm
Method
Adaptation of the ASTM Manual of Water and
Environmental Technology, D1687-92
Environmental Technology, D1687-92
,
Diphenylcarbohydrazide method. The reaction
between chromium VI and the reagent causes a
purple tint in the sample.
REQUIRED REAGENTS
Code
Description
Quantity
HI 93723-0
Powder reagent
1 packet
REAGENT SETS
HI 93723-01 Reagents for 100 tests
HI 93723-03 Reagents for 300 tests
For other accessories see page 141.
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Chromium VI HR on
the secondary LCD by pressing PROGRAM W and V.
• Fill the cuvet up to the mark with 10 mL of
unreacted sample and replace the cap.
• Place the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display
will show “-0.0-”. Now the meter is
zeroed and ready for measurement.
zeroed and ready for measurement.
10 mL