Hach LZY904.98.00002 Instructions D'utilisation page 17

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  • FRANÇAIS, page 24
• STABLCAL 0-40 NTU (or 0–40 FNU) calibration—One vial: StablCal 20 NTU
• STABLCAL 0-700 NTU (or 0–1000 FNU) calibration—Two vials: StablCal 20 NTU and
StablCal 600 NTU
Make sure that the standard is at the same ambient temperature as the sensor.
If there is contamination in the sample vial after it is rinsed with the sample, clean the sample vial.
Refer to the TU5200 documentation for vial cleaning instructions.
If calibration with verification is used, make sure to measure the verification standard with the
menu item Define Std Val. Refer to
3.4.1.1 Prepare Formazin standards
Prepare Formazin standards immediately before a calibration and discard after use.
1. Prepare a 20 NTU Formazin standard as follows:
a. Use a pipet to add 5.0 mL of 4000 NTU Formazin standard solution in a 1-L volumetric flask.
Configure the verification settings
on page 20.
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