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4. Inserting of battery
●When loading the instrument with a new battery, carefully do it not to make a mistake in
connection of the positive (+) and negative (-) poles of the battery. If they are wrongly
connected, it causes a trouble or damage of the refractometer.
●Press the START/OFF button, ZERO setting button or SCALE button to power on the
instrument. Thus, there is no power button on this unit.
●When the voltage of the battery is low after some time, purchase a new 006P alkaline
battery and replace the old battery with the new one. Be sure to carry out zero setting
when the battery is replaced.
* When purchasing a battery, be sure to check the expiration date.
●Remove the battery from the unit when the unit is not to be used for a month or longer.
Failure to remove the battery before prolonged storage may result in leakage.
(1) Turn left the Battery Cover as illustrated for opening.
(2)
Insert a battery correctly as to its polarity.
(3) Turn right the Battery Cover by your bare hands for closing.
CAUTION
When measuring a sample, if this instrument is subject to intense light, such
as direct sunlight, light at dusk, or a spotlight, the ELI* function will display
the warning message "nnn" immediately after the START/OFF button (or
the ZERO setting button) is pressed.
In this situation, shade the sample stage with your hand, and then press the
START/OFF button (or the ZERO setting button) again.
* External Light Interference (ELI)
Note :
When intense light penetrates the prism of a digital refractometer, the light waves interfere
with the sensor resulting in inaccurate readings.
To ensure accurate measurement results each time, this instrument is programmed with the
ELI function to display the warning message "nnn" when intense direct light is detected. Forming
a habit of shading the sample stage with your hand and re-pressing the START/OFF button
(when the warning message from the ELI function is displayed) will ensure accurate
measurement results each time.
*When the battery is low, [nnn] may be displayed. When [nnn] is displayed, even after repeated
measurements are taken with the sample stage covered, replace the battery.
20.4
n n n
5. ELI function
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