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Idiomas disponibles
Idiomas disponibles
2
Methods
On
Off
Lr
Zero
Test
Lr
0.0.0
Zero
Test
Lr
R E S U L T
R E S U L T
R E S U L T
2.1 Hydrogen Peroxide 1 - 50 mg/l
Switch on device with ON/OFF key.
The method symbol (Lr) for the low measuring range appears in
the display.
Using the plastic syringe supplied with the device, take up 10 ml
of clear sample solution and transfer to a clean vial. Replace the
vial cap tightly and place the vial in the sample chamber with the
∇ mark on the vial aligned with the ∆ mark on the instrument.
Finally close the sample chamber with the sample chamber cap.
Press the ZERO/TEST key.
The method symbol flashes for approx. 3 seconds.
The display shows the result (0.0.0)
Now remove the vial from the sample chamber and unscrew the
cap. Open the drip bottle with the H
over the opening of the vial. By pressing slowly, carefully add
6 evenly sized droplets to the vial. Attention: The reference
reagent contains a 25% sulphuric acid solution. It is
recommended to wear appropriate protective clothing (protective
goggles/gloves). After adding the droplets of reagent, replace
the cap on the vial. Mix the sample solution with the reagent by
slowly upturning the closed vial. Now place the vial in the sample
chamber. Finally close the sample chamber with the sample
chamber cap.
Press the ZERO/TEST key.
The method symbol (Lr) flashes for approx. 3 seconds.
The result is shown in the display in mg/l hydrogen peroxide (H
O
reagents and hold vertically
2
2
16
O
).
2
2
Capítulos
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