SPER 300050, 300052, 300051, 300053, 300055 Instruction Manual

POCKET DIGITAL

REFRACTOMETERS

300050 ~ 300055

INSTRUCTION MANUAL

SPER

SPER

SPERSPER
SCIENTIFIC

SCIENTIFIC

SCIENTIFIC SCIENTIFIC

LTD

LTD

LTDLTD

....

CONTENTS

1. Introduction .................................. 2

2. Panel Description ........................ 3-4

3. Notes and Precautions5

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. Specifications .............................. 10-11

8. Warranty ...................................... 12

1. INTRODUCTION

Our Pocket Digital Refractometers measure
Brix, salinity or other parameters with
laboratory accuracy. The digital readout
eliminates uncertainties, while the water
resistant design facilitates clean ups and
protects the electronics from moisture.

Features:

•

Automatic Temperature Compensation

•

Zero Calibration

•

Automatic shut off

•

Instantaneous reading

2. PANEL DESCRIPTION

1

2

3

4

5

1. Stainless Steel Sample Plate

2. Cover

3. Prism

4. Keypad

5. Battery Compartment

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6

7

▼

8

Keypad for Single-Scale Models

9

10

10 9

ZERO

READ

6. Display

7. Active Scale Indicator

8. SCALES button

9. READ button

10. ZERO button

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