Summary of Contents for SPER 300050
- Page 1 POCKET DIGITAL REFRACTOMETERS 300050 ~ 300055 INSTRUCTION MANUAL SPER SPER SPER SPER SCIENTIFIC SCIENTIFIC SCIENTIFIC SCIENTIFIC ..
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Page 2: Table Of Contents
CONTENTS 1. Introduction ........2 2. Panel Description ......3-4 3. Notes and Precautions 4. Calibration........5-6 5. Measurement....... 6-7 • Models with Multiple Scales ..7-8 • Erratic Readings ....... 8-9 5. Zero Checking......9 6. Battery Replacement ....9 7. -
Page 3: Panel Description
2. PANEL DESCRIPTION 1. Stainless Steel Sample Plate 2. Cover 3. Prism 4. Keypad 5. Battery Compartment - 3 -... - Page 4 ▼ Keypad for Single-Scale Models READ ZERO 6. Display 7. Active Scale Indicator 8. SCALES button 9. READ button 10. ZERO button - 4 -...
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Page 5: Notes And Precautions
3. NOTES AND PRECAUTIONS The refractometer will automatically shut • off after about 3 minutes of inactivity. After each use, clean the SAMPLE • PLATE (1) and PRISM (3) with distilled water on a soft cloth, and wipe dry. If a film develops on the PRISM (3) it will •... -
Page 6: Measurement
Allow the refractometer and the distilled • water to acclimate to the ambient environment. Clean the PRISM (3) before and after • every use. There should be no spots or film on the prism. Drop at least 1.0 ml of distilled water (0.0) •... -
Page 7: Models With Multiple Scales
place the refractometer in the lab and allow it to adjust to the ambient temperature. Allow apx. 30 minutes for every 5°F (10°C) difference in temperature. Press the READ (9) button to turn the unit • on and display the temperature. This unit features Automatic Temperature Compen- sation (ATC) within the range of 41~104°F (5~40°C), eliminating the need for manual... -
Page 8: Erratic Readings
(page 6), then press the SCALES (8) button and hold the button for 1 second to cycle through the options. "- - -" is displayed and the ACTIVE • SCALE (7) indicator "▼" points to the selected scale. With the desired scale selected, press the •... -
Page 9: Zero Checking
make sure to close the COVER on the PRISM during measurement. After about 3000 tests, turn the unit off for 5 • to 10 minutes to rest the battery. 6. ZERO CHECKING Use this function to check the nD value of the zero setting for distilled water. -
Page 10: Specifications
7. SPECIFICATIONS Weight 5.3 oz, 150 grams 5" x 2 " x 1 " Dimensions 120 x 65 x 30 mm Storage 14~122°F (–10~50°C) Environment Below 90% RH Operating Below 2000m sea level Environment 32~104°F (0~40°C) Battery Life Approx. 8000 tests Protective Case 1.5V AAA Battery Included... - Page 11 - 11 -...
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Page 12: Warranty
If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, or damage resulting from accident, misuse, or abuse of the product.
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