Operation Instruction
1= Cover plate
2= Prism
3= Calibration screw
4= Mirror tube
5= Eyepiece (focus adjustment)
It is important to regulate the temperature
of the sample, the instrument and the
room as much as possible. Changes in
temperature can affect the final result.
Temperature
Specification
Measuring Range 0-40%
Resolution 0.2
Measurements 27mm x 40mm x 160mm
Weight 175g You may need to calibrate the instrument
before use or after a rise or fall in
temperature.
1. Open the cover plate (2).
2. Drop 1/2 drops of distilled water onto
the prism (1).
3. Adjust the meter to zero (0).
4. Close the cover plate (2) and press
gently.
5. Rotate and adjust the calibration screw
(3) until the light blue boundary line
meets the zero (0) line.
Calibration
1. Take a sample of the Adblue mixture
2. Place a droplet on the prism and cover
3. Look through the eye-piece
4. Adjust the light if necessary to focus the
line between the dark and light areas.
5. Line this up with the marked
measurement scale
6. Take the reading
Measurement
• Use only soft tissue or cloth to clean
the prism as it is very easily scratched.
• Dab away the sample and then use
distilled water or a glass-safe solvent
such as alcohol to clean the prism.
Cleaning
• Adjustment for the distilled water
and sample should be in the same
temperature.
• Once the temperature changes, the
zero (0) point should be adjusted once
per 30 seconds.
• Do not immerse in water
• This is a precision optical instrument
and should be handles gently
• Do not touch or scratch the optical
surface.
• Please keep it in a dry, clean and non-
corrosiveness environment
• Avoid dropping
Attention and Maintenance
1
2
3
4
5
00
55
10 10
15 15
20 20
25 25
30 30
35 35
40 40
AUS 32 20°C
[68°F]
00
55
10 10
15 15
20 20
25 25
30 30
35 35
40 40
AUS 32 20°C
[68°F]
Calibration with distilled water
5015_RefractometerAdblueInst.indd 25015_RefractometerAdblueInst.indd 2 09/08/2010 09:5209/08/2010 09:52
