Triplett RFT10 Manuale utente

User Manual

RFT10, RFT32, RFT50, RFT55

Handheld Refractometers

Introduction

Thank you for selecting the Triplett MS300 Pinless Moisture Meter. The

MS300 sensor performs non-invasive, relative moisture measurements on

wood and building materials such as wallboard, sheet rock, cardboard,

plaster, concrete, and mortar. The MS300 also offers auto power off

(APO), display lock (hold), and self-calibration features.

The MS300 is ideal for building restoration projects and applications

where moisture detection on floors and under carpets is critical. The

MS300 is also a handy tool for analyzing the effects of water leakage

behind walls and in ceilings

Meter Description

Operation

Step 1.

Open daylight plate, and place 2-3

drops of distilled water on the main

prism. Close the daylight plate so the

water spreads across the entire surface

of the prism without air bubbles or dry

spots. Allow the sample to temperature

adjust on the prism for approximately 30

seconds before going to step 2. This

allows the sample to adjust to the

ambient temperature of the

refractometer.

Step 2.

Hold daylight plate in the direction of a light source and look into the

eyepiece. If you will see a circular field with graduation down the entrance,

you may have to focus the eyepiece to clearly see the graduation. The upper

portion of the field should be blue, while the lower portion should be white.

(The pictures shown here and shown in step3&step4 are only as reference.

The right specific scale is listed the products.)

Step 3.

Look into the eyepiece and turn

the calibration screw till the

boundary between the upper blue

field and the lower white field

meet exactly on the zero scale,

such as shown in the image. That is the end of the calibration process. Make

sure the ambient room temperature is correct for the solution you are using

(20℃/68℉). When working temperature of the room or environment (not the

sample) changes by more than 5℉, we recommend recalibrating to maintain

accuracy. If the instrument is equipped with Automatic Temperature

Compensation system, the ambient working temperature of the room must

be 20℃/68℉whenever the instrument is recalibrated. Once calibrated, shifts

in ambient temperature within the acceptable range (10℃-30℃) should not

affect accuracy. Calibrate to “0”scale

Step4.

Now place a few drops of the sample to be tested onto the main prism, close

the daylight plate and check reading. Take the reading where the boundary

line of blue and white separating the graduated scale. The scale will provide

a direct reading of the concentration.

**NOTE: Each model of scale different, but the operation method is

totally the same.

Maintenance

1. Accurate measurement depends on careful calibration. The prism and

sample must be at the same temperature for accurate results.

2. Don’t expose the instrument to damp working conditions, and don’t

immerse the instrument in water. If the instrument becomes foggy, water has

entered the body. Call a qualified service technician or contact your dealer.

3. Don’t measure abrasive or corrosive chemicals with these instruments.

They can damage the prism’s coating.

4. Clean the instrument after measurement using a soft damp cloth. Failure

to clean the prism on a regular basis will lead to inaccurate results and

damage to the prism’s coating.

5. This is an optical instrument. It needs careful handling and storage.

Failure to do so can result in damage to the optical components and its basis

structure. With care, this instrument will last years of reliable service.

Specifications

RFT10

RFT32

Type

Sucrose

Range

0 to 10% (20°C)

0 to 32% (20°C)

Accuracy

±0.1%

±0.2%

Resolution

0.1

0.2

ATC

50° to 86°F (10°

to 30°C)

50° to 86°F (10°

to 30°C)

Dimensions

6.7x1.6x1.6"

(170x40x40mm)

6.7x1.6x1.6"

(170x40x40mm)

Weight

6oz (170g)

RFT50

RFT55

Propylene Glycol

Freeze Point

-50°C to 0°C

-60°F (63%) to

32°F (12%)

Ethylene Glycol

Freeze Point

-50°C to 0°C

-60°F (59%) to

25°F (16%)

Accuracy

±2%

Resolution

1°C

2°F

Battery Acid

Specific Gravity

1.15 to 1.30

Dimensions

6.7x1.6x1.6"

(170x40x40mm)

6.7x1.6x1.6"

(170x40x40mm)

Weight

6oz (170g)

Warranty

Triplett / Jewell Instruments extends the following warranty to the original purchaser of

these goods for use. Triplett warrants to the original purchaser for use that the products

sold by it will be free from defects in workmanship and material for a period of (1) one

year from the date of purchase. This warranty does not apply to any of our products

which have been repaired or altered by unauthorized persons in any way or purchased

from unauthorized distributors so as, in our sole judgment, to injure their stability or

reliability, or which have been subject to misuse, abuse, misapplication, negligence,

accident or which have had the serial numbers altered, defaced, or removed.

Accessories, including batteries are not covered by this warranty

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