E-Line Refractometer
‘ATC Range’
User Guide
E-Line Refractometer ‘ATC Range’ User Guide (Eng)
B+S Code : 44-891
Issue 1F
July 2011
© Copyright Bellingham + Stanley Ltd 2011
Every effort has been made to ensure the accuracy of the contents of this manual. However, Bellingham + Stanley Ltd can
assume no responsibility for errors contained in the manual or their consequences.
Printed in United Kingdom.
Order Code Range Specific Industry Scale Division
44-801 0-10 °Brix 0.1
44-802 0-18 °Brix 0.1
44-803 0-32 °Brix 0.2
44-804 28-62 °Brix 0.2
44-805 45-82 °Brix 0.5
44-808 0-100 ‰ Saline
1.000-1.070 Saline (SG)
44-809 0-40 °Brix
0-25 Probable Alcohol (AP)
44-812 10-30 Water in Honey 0.1
44-817 0-32 °Brix
0-140 Oechsle D
44-818 0-140 Oechsle
0-27 Babo (KMW)
0-32 °Brix
44-819 0-20 Baume
0-25 Probable Alcohol (AP)
44-820 0-70 % Ethylene/Propylene Glycol
0 to -50°C
44-821 0 to -50°C Ethylene/Propylene Glycol
1.10-1.40 Battery Acid SG
0 to -40°C SRF1 Screen Wash
44-822 30-35% Adblue®
0 to -50°C Ethylene/Propylene Glycol
1.10-1.40 Battery Acid SG
0 to -40°C SRF1 Screen Wash
44-823 1.000-1.120 Wort SG
0-32 °Brix
44-825 1.335-1.360 RI
1.000-1.050 Urine SG
0-12 g/100ml Serum Protein
44-828 1.30-1.38 RI 0.0001
44-829 1.4-1.5 RI 0.0001
Bellingham+Stanley Ltd. Bellingham+Stanley Inc.
Longfield Road, Tunbridge Wells, 1000 Hurricane Shoals Road, Building D,
Kent, TN2 3EY, United Kingdom Suite 300, Lawrenceville, GA 30043, USA
Phone: +44 (0) 1892 500400 Phone: 770 822 6898
Fax: +44 (0) 1892 543115 Fax: 770 822 9165
sales@bellinghamandstanley.co.uk sales@bs-rfm-inc.com
Aquatic 1‰
0.2
0.2
1
0.2
5
Automotive 5
Automotive 0.5
Brewing 0.005
Veterinary
0.001
0.2
1
0.2
0.2
0.2
5
0.05
0.2
5.0
0.01
5.0
0.2
0.0005
0.005
0.2
Product Description
The E-Line Refractometer ‘ATC Range’ is ideal for use in the soft drinks and food industries as well
as other applications requiring concentration measurements such as industrial coolants and
quenchants.
Applying the sample to the refractometer:
Lift the illuminator flap
borderline (light/dark demarcation line) through the eyepiece
Optical glass is relatively soft and care should be taken not to scratch the prism surface. Do not
use metal spatulas or glass rods to apply samples but instead use softer materials such as plastic.
The E-Line Refractometer ATC Range can also be used for testing solid substances such as apples,
melons, grapes, sugar beet and potatoes. Cut a slice of the substance about 2mm thick and slightly
smaller than the prism area. With the flap lifted, apply the slice to the surface of the prism taking
care to obtain a good contact.
Focussing the scale:
Hold the instrument up to the light and look through the eyepiece. Rotate the eyepiece to focus
the scale.
Taking a reading:
Read the scale at the border of the light and dark areas. If the scale is completely light then the
sample concentration may be too high for the instrument range.
Cleaning the prism:
Thoroughly clean the prism after use with water or other suitable solvent and dry with clean tissue.
The prism surface could be damaged by strong alkalis or acids if left in contact for long periods of
time. Clean samples from the prism as soon as practicable.
Wiping the prism surface occasionally with alcohol will remove any build-up of oils left from the
samples.
1
, drip the sample on to the prism2 then close the illuminator flap. View the
Eyepiece
3
Hand Grip Calibration Screw
3
.
Illuminator Flap
4
Prism
1
2
Page 1
Calibration
ATC models are corrected for temperature in the range 10-30°C and so should not require
adjustment unless the ambient temperature varies by more than 5 °C. If it is felt necessary to adjust
the factory set calibration, then the following procedure must be used.
Stabilise the instrument temperature. Apply distilled water to the prism and adjust the reading using
the calibration screw
4
until the borderline crosses the zero line.
Always check sample Health & Safety Data before applying to the refractometer.
When applying samples to the prism which are likely to cause harm to skin or eyes, wear
appropriate protective clothing and glasses.
These refractometers are precision optical instruments and should be handled with care.
Do not drop or subject them to sharp knocks.
°Brix to Refractive Index Conversion Table
The below table may be used to convert °Brix readings to refractive index where scale type
permits.
Refractive
Index at
589.3nm and
°Brix
10 1.34782 27 1.37582 44 1.40776 61 1.44420 78 1.48552
11 1.34937 28 1.37758 45 1.40978 62 1.44650 79 1.48811
12 1.35093 29 1.37936 46 1.41181 63 1.44881 80 1.49071
13 1.35250 30 1.38115 47 1.41385 64 1.45113 81 1.49333
14 1.35408 31 1.38296 48 1.41592 65 1.45348 82 1.49597
15 1.35568 32 1.38478 49 1.41799 66 1.45584
16 1.35729 33 1.38661 50 1.42009 67 1.45822
20.0°C
0 1.33299 17 1.35891 34 1.38846 51 1.42220 68 1.46061
1 1.33442 18 1.36054 35 1.39032 52 1.42432 69 1.46303
2 1.33586 19 1.36218 36 1.39220 53 1.42647 70 1.46546
3 1.33732 20 1.36384 37 1.39409 54 1.42862 71 1.46790
4 1.33879 21 1.36551 38 1.39600 55 1.43080 72 1.47037
5 1.34026 22 1.36720 39 1.39792 56 1.43299 73 1.47285
6 1.34175 23 1.36889 40 1.39986 57 1.43520 74 1.47535
7 1.34325 24 1.37060 41 1.40181 58 1.43743 75 1.47787
8 1.34477 25 1.37233 42 1.40378 59 1.43967 76 1.48040
9 1.34629 26 1.37406 43 1.40576 60 1.44193 77 1.48295
°Brix
Refractive
Index at
589.3nm and
20.0°C
°Brix
Refractive
Index at
589.3nm and
20.0°C
°Brix
Refractive
Index at
589.3nm and
20.0°C
Refractive
Index at
589.3nm and
°Brix
20.0°C
Data Source: ICUMSA Methods Book, Specification and Standard SPS-3 (2000), Refractometry
and Tables - (Official)
Note: °Brix values greater than 85.00 are extrapolated from the relationship given in
ICUMSA SPS-3 (2000) Equation 1.
Page 2
Loading...