Lovibond MD 100 Mode D'emploi page 34

Functional description
GB
Zero
Test
Zero
Test
Zero
Test
Sample
Zero
Test
!
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Press[ZERO/TEST]button
Removethe vial from the sample chamber
OTZ (One Time Zero)
The One Time Zero is available for all photometer variants whereby
the zero adjustment is carried out in a 24-mm round vial with sample
water. It canbe usedif different tests are carried out with identical test
conditions and the same water sample. When changing methods, it
is not necessaryto carry out another zero adjustment; the next test
can begin immediately. The zero adjustment is saveduntil the device
is switched off.
The zero setting can be repeated each time if necessary.
One Time Zero(OTZ),1x performing zero, then parameter measurement
Repeating the zero, Pressthe key for 2 seconds.
Performing test procedure
Add reagent (f.e. a reagent tablet) (seemethod description)
Close vial
Placesample vial in the sample chamber.
Payattention to the positioning.
Press[ZERO/TEST]button
Display backlight
press,the backlight is switched off automatically during the meas-
urement
MD1X0/200_1b 09/2020