FAQ for Hand-Held refractometer-seris.
How can I calibrate different ranges of the Refractometers?
Please see below :
[ Hand-Held Refractometers, MASTER Series ]
Scale Adjustment | Temperature Compensation | |
MASTER-α series |
Not Necessary |
Automatic |
MASTER-T series |
Not Necessary as a daily |
Automatic |
MASTER-M, 10M, 20M, 53M, S28M, S10M, S/MillM |
Measure Water at environment temperature, and adjust the scale to Brix 0.0%. (Zero Set) |
|
MASTER-2M |
Adjust the scale with 30% Sucrose Solution |
Refer to the temperature compensation table on the instruction manual. |
MASTER-3M |
Adjust the scale with Standard Liquid LB. |
|
MASTER-4M |
Adjust the scale with 50% Sucrose Solution |
|
MASTER-H series |
Not Necessary |
Automatic |
MASTER-BR |
Measure Water at environment temperature, and adjust the scale to 0% • 0°C. (Zero Set) |
|
MASTER-RI |
Adjust the scale with the Standard Liquid LB. * Please refer to the instruction manual. |
|
N-8α |
Measure Water at environment temperature, and adjust the scale to Brix 0.0%. (Zero Set) |
|
AL-21α |
Measure Water at environment temperature, and adjust the scale to Conc 0.0%. (Zero Set) |
|
HHR-2N |
Adjust the scale with the Standard Liquid LB. |
Read thermometer on theunit. |
HSR-500 |
Measure Water at environment temperature, and adjust the scale to Brix 0.0%. (Zero Set) |
Read thermometer on theunit. |
R-5000 |
Measure Water at environment temperature ( 20°C, and adjust the scale to nD 1.3330. (Zero Set)) |
[ Hand-Held Refractometers (old products) ]
Scale Adjustment | Temperature Compensation | |
ATC-20E |
Not Necessary as a daily |
Automatic |
N-10E, N-20E |
Measure Water at environment temperature, and adjust the scale to Brix 0.0%.(Zero Set) |
|
S-10E, S-28E |
Measure Water at environment temperature, and adjust the scale to Brix 0.0%.(Zero Set) |
|
ATC-S/Mill-E |
Not Necessary as a daily |
Automatic |
S/Mill-E |
Measure Water at environment temperature, and adjust the scale to Salinity 0.0%. (Zero Set) |
|
SM-20E, BR-1E |
Measure Water at environment temperature, and adjust the scale to Conc. 0.0%. (Zero Set) |
About the Maintenance.
About the Brix (%) Scale.
All Refractometers are designed to measure the refractive index of a solutoin. The Brix scale is based on a sucrose (sugar)
and water solution. However, since most samples contain substances other than sugar - such as salts, minerals and protenis -
the Brix percentage repesents the total concentration of all soluble solids in the sample. For certain samples, such as cutting
oils and other industrial fluids, a conversion chart from the Brix percentage to the sample's total concentration may be necessary.
About the volume of the sample.
Low viscosity samples like water need about 0.3ml to measure. Higher the viscosity, larger the sample amount will be needed.
As soon as the sample spreads out completely between the daylight plate and the prism,
it is about the best amount to take measurements. ATAGO supplies the "Small Volume Daylight Plate" (RE-2311-57M) for small volume sample measurements by the MASTER-Series Refractometers. (Only 1µl of sample needed.)
The scale of the Analog hand-Held Refractometer is blur, and I can not see clear boundary line. How can I do with this unit?
If the scale is blur, water or moisture might get inside of the Refractometer. Leave the unit at dry place for a few days, or use a hair dryer to take water / moisture out from the unit. (Do not use the hair dryer exceed by 50°C.) If there is dust inside, please send the unit to ATAGO (or ATAGO Distributor) for service.
For Repair Service Dept