Sper Scientific LUTU-2016 Turbidity Meter - Manual (Page 8)

Remark :
* Under power OFF, if press the TEST Button " ( 3-5,
Fig. 1 ) will power ON and going on to make the test
automatically.
* After the testing, within ten minutes approx., the
meter will auto power OFF automatically.
Wash ( Reinse ) the Testing bottle
* After the testing, it should wash ( reinse )
the Testing Bottle by the Clean Solution
( Distill Water ) " ( 3-17, Fig. 1 ).
4-3 Zero
When measure the " 0 NTU " liquid, if the display not show
the zero value, it can deduct ( offset ) those " not zero
value " with default, the zero procedures are :
Press the " ZERO Button " ( 3-7, Fig, 1 ) continuously
until the display show zero value then release the
finger from the button
* Remark :
The zero function can be executed within
the zero dift value < 2.0 NTU only.
4-4 Data Hold
During the measurement, press the " Hold Button " ( 3-4,
Fig. 1 ) once will hold the measured value & the LCD will
display a " HOLD " symbol.
* Press the " Hold Button " once again will release the data
hold function.
4-5 Data Record ( Max., Min. reading )
* The data record function records the maximum and
minimum readings. Press the " REC Button " ( 3-8, Fig.
1 ) once to start the Data Record function and there
will be a " REC. " symbol on the display.
6