Ametek Reichert r2i300, Руководство пользователя

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Calibration
To properly maintain the accuracy of the r
2
i300 refractometer, calibration of the instrument on a
routine basis is recommended. Prior to calibration it is extremely important to completely clean
the sample well and the measuring surface so no sample residue is present. Any residue on the
sample well or the measuring surface will adversely affect the accuracy of the instrument.
Calibration options are either Set Point calibration using distilled water or Multipoint calibration
using distilled water and up to four additional calibration standards. While it is not essential to
calibrate at every available point. Calibration with distilled water and at least one calibration
standard is recommended to ensure accuracy across the entire reading range of the instru-
ment. Calibration standards can be chosen to closely match the reading range of the product
being analyzed.
6
Set Point Calibration
- Begin by pressing the key.
- Follow the displayed instructions to apply distilled
water or press to cancel.
- Allow the distilled water to temperature equilibrate to
the temperature of the instrument and press .
- Note the displayed result.
- Press to continue.
Apply water
CAL = Calibration
MENU = Cancel
Brix-TC Brix
Set point cal
successful
Brix-TC Brix
←
Menu
↑
Read
↓
Calibrate
↓
Calibrate
Multi Point Calibration
-
Access the Calibration Menu by pressing and advancing to
the Calibration menu by pressing or . Press to
accept and enter this option.
-
When Set (Water) appears press and follow the displayed
instructions to Apply distilled water. Allow adequate time for the
sample to temperature equilibrate and press .
-
Clean and dry the sample surface and well and access additional
calibration points by repeating above steps.
-
When Set (Water) appears again press several times to
advance to a desired stored span point value such as 1.51432.
Note that this value is given as an example and may not match
one of the stored values. Press to accept.
-
Follow the on screen instructions to apply the 1.51432 standard.
Allow standard to equilibrate and press .
-
To perform calibration using any additional points follow the
procedure outlined above being certain that you always start with
the lowest refractive index standard and move up to the highest
refractive index standard.
-
Clean and dry the prism surfaces before using to read samples.
Calibration
Brix-TC Brix
1.xxxx Cal
successful
Brix-TC Brix
←
Menu
↑
Read
←
Menu
↓
Calibrate
←
Menu
↓
Calibrate
↑
Read
←
Menu
↓
Calibrate
- Exit Menu
- Print Reading Log
- Delete Reading Log
- Calibration
- Contrast
- PC Com Linkup
- Set Clock
- Select Channel
- Reading Mode
(Channel Name)
Exit Menu
Brix-TC Brix
Fig 3
(Option)
Menu Options Overview
Shown in (Fig 3) are the available menu options. While many of these
options are not required to operate the instrument, they have been made
available to enhance the functionality of the r
2
i300 refractometer.
To access the menu options press
until “Exit Menu” is displayed. Advance to the
desired option by pressing or
and press to accept and enter those
option choices. To exit this screen and return
to the reading mode press .
←
Menu
↓
Calibrate
↑
Read
←
Menu
←
Menu
Reading Mode