Operation; Display Backlight - Lovibond MiniDirect Bedienungsanleitung

Operation

GB
On
Switch the unit on using the ON/OFF key.
Off
The display shows the following:
tAB
Attention:
The unit is designed to measure chlorine dioxide in two different reagent
systems.
tAB: 10 ml sample
PP:
Select the test required using the MODE key:
Mode
tAB → PP → Abs → tAB → .......... (Scroll)
The display shows the following:
METHOD
Fill a clean vial with the water sample up to the 10 ml mark, cap and place the
vial in the sample chamber with the ∆-mark on the vial aligned with the
∇−mark on the instrument.
Zero
Press the ZERO/TEST key.
Test
The method symbol flashes for approx. 8 seconds.
METHOD
The display shows the following:
0.0.0
After zero calibration is completed, remove the vial from the sample chamber.
Add the appropriate reagent; a colour will develop in the sample.
Cap and place the vial in the sample chamber with the ∆ and ∇ marks aligned.
Zero
Press the ZERO/TEST key.
Test
The method symbol flashes for approx. 3 seconds.
METHOD
The result appears in the display.
RESULT
The result is saved automatically.
Repeating the analysis:
Zero
Press the ZERO/TEST key again.
Test
New zero calibration:
Press the MODE key until the desired method symbol appears in the display
Mode
again.
Measuring the absorbance
This Mode-function allows to measure the absorbance at the specified
wavelength.
Abs
The result appears in the display in mAbs (1000 mAbs = 1 A (Absorbance unit)).

Display backlight

Press the "!" key to turn the display backlight on or off. The backlight is switched
!
off automatically during the measurement.
Tablets
Powderpacks
10 ml sample
Range: 0.01 - 3.8 mg/l
Range: 0.01 - 3.8 mg/l