P-SOP0804-3262-E02
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Standard Operating
Procedure
（
SOP
）
Automatic digital
Refractometer
RX-7000
α
(alpha)
Preface
To ensure proper care operation, many years accurate measurement, the Standard Operating
Procedure (SOP) document for the automatic digital refractometer,RX-
7000α
, is provided
herewith. The following instructions should be used as an example. Based on the steps
provided,
write up your company’s own original SOP for the operation of the automatic
digital refractometer, RX-
7000α.
The standard operation procedure document for the automatic
digital refractometer, RX-
7000α
1. Operation Manual
Plug the AC power supply cable into an AC100 to 240V power outlet. If the optional
digital printer for the RX-7000
α
is connected, turn on the power supply switch of the
printer first, and then, turn on the power supply switch of the RX-
7000α
.
1)
After checking the initial screen (opening message) and also checking the present
temperature in the measurement display screen, perform zero adjustment with
distilled water.
2)
Drop 0.1ml or more distilled water onto the prism surface and close the cover lid,
then, press the SW1 (ZERO) key. Screen displays “WAITING…”. After the current
temperature(PRESENT) reaches the targeted temperature (TARGET), the screen
displays ”READING…”. After a few seconds, screen displays “ZERO SET END”.
Confirm the display of "ZERO SET END".
Wipe off the distilled water from the prism surface with tissue paper.
3)
Drop 0.1ml or more of sample onto the prism surface and close the cover lid, then,
press the START key. Screen displays “WAITING…”. After the current temperature
(PRESENT) reaches the targeted temperature (TARGET), the screen displays
“READING…”. After a few seconds, the measured value will be indicated.
4) Record the measured value. If the printer is connected, it will print the
measurements taken. Wipe off the sample from the prism surface with tissue paper.
5) Measure the next sample.
6)
After measurement is completed, wipe off the sample from the prism surface and the
surrounding area with soft tissue paper soaked in water and then wipe dry.
7)
Turn off the power supply switch of the RX-
7000α
. If the printer is connected, turn off
the power supply switch of the printer.
*Keep the "instruction manual" of the RX-
7000α in a convenient
place for easy reference.
