P-OQ1011-3276-J01
6
Operational
Qualification (OQ)
Automatic Digital
Refractometer RX-5000i
Apply distilled water on the prism and press “ZERO SET.” Touch “START” and measure the
distilled water. Wipe the water off the prism.
3-1. Display Test
After the instrument is turned on, the opening message will be displayed, and then the
home screen will appear. Make sure that no truncated or garbled letters are found on the
screen.
3-2. Touch Key Test
1)
Touch “HOME” on the measurement screen. Touch “SET UP” to display the set up
screen. Touch each icon and check the values against the factory default values found
in the instruction manual. Once the contents of each menu have been checked, return
to the set up screen.
2)
Touch “HOME” on the set up screen to display the home screen. Touch
“MEASUREMENT” to return to the measurement screen.
3-3. Error Message Test
The measurement screen is currently displayed.
1) Make sure that the prism is clean and touch “ZERO.” “WAITING,” and then “READING”
will be displayed. “OUT OF WATER” will be displayed and printed.
2) Make sure that the prism is clean and touch “START.” “WAITING,” and then “READING”
will be displayed. After a few seconds, “OUT OF RANGE” will be displayed and printed.
3) Apply the 30.00% Brix standard sucrose solution and touch “ZERO.” “WAITING,” and then
“READING” will be displayed. A few seconds later, “OUT OF WATER” will be displayed.
Wipe the solution off the prism.
4) Place a round sheet and apply the solution with 1.585 nD or above, such as
monobromonaphthalene, on the prism and touch “START.” “WAITING,” and then
“READING” will be displayed. A few seconds later, “OUT OF RANGE” will be displayed.
Wipe the solution off the prism.
●
The RX-5000i is currently in MODE-1. Program a user scale and check the “OUT OF
SCALE” error message and WAIT TIME function.
1)
Touch “HOME” on the measurement screen to display the home screen. Touch “SCALE”
and select the uppermost empty row with the smallest scale number on the scale list.
Touch “EDIT” at the bottom of the screen. The scale-edit screen will be displayed.
2)
Touch the scale number on the upper left corner of the screen. Enter the name of the
scale in SCALE NAME, using the alphabet & number keys. In this case, type in “Brix050.”
Touch “USER” from the scale types. Touch “ENTER,” and the user scale data screen will
appear.
3)
Enter the refractive index in “nD” and the corresponding concentrations in “DATA,”
using the ten-key pad.
