Sper scientific 860040 Leitfaden

Turbidity Meter

860040

Instruction Manual

TABLE OF CONTENTS

INTRODUCTION .................................................................2

FEATURES ..........................................................................3

MATERIALS SUPPLIED ......................................................3

FRONT PANEL DESCRIPTION ..........................................4

SET UP ................................................................................5

CALIBRATION .....................................................................6

MEASUREMENT PROCEDURES ......................................8

ZERO ADJUSTMENT ..........................................................9

CARE AND MAINTENANCE .............................................11

SPECIFICATIONS .............................................................11

WARRANTY ......................................................................12

INTRODUCTION

This Sper Scientic Turbidity Meter (model 860040)

displays the turbidity level of aqueous solutions on a

large LCD screen. This meter can measure numerous

di󰀨erent types of aqueous solutions and o󰀨ers a two-point

self-calibration feature that can be performed in under a

minute. The meter conveniently displays turbidity in the

internationally recognized Nephelometric Turbidity Unit

of measure (NTU), used in many industries including the

beer/wine, water quality, biological growth, and chemical

manufacturing industries.

FEATURES

• Reads turbidity values of aqueous solutions

• Protective chamber with lid to prevent debris from entering

• Maximum and Minimum values

• Portable design for use in the eld or laboratory

• Data Hold Function

• Optional DC adapter for eld use

• Zero adjustment feature for low turbidity solutions

MATERIALS SUPPLIED

• Turbidity meter

• Calibration standards solutions of 0 NTU and 100 NTU

• 2 sampling bottles

• Instruction manual

• 6 AAA batteries

• Carrying case with custom foam interior

• Low Lint Cloth

• Distilled Water for cleaning

FRONT PANEL DESCRIPTION

1. Chamber Lid/protective cover

2. Testing chamber

3. LCD screen

4. Data Hold Button

5. Test / Calibration Button

6. Power Button

7. Zero Button

8. Min/Max Button

3. FRONT PANEL DESCRIPTION

3-1 Cover of Testing bottle

3-2 Container of Testing bottle

3-3 Display

3-4 Hold Button ( Esc Button )

3-5 TEST/CAL Button

3-6 Power Button

3-7 ZERO Button

3-8 REC Button ( MAX, MIN Button )

3-9 Testing bottle with 0 NTU standard solution

3-10 Testing bottle with 100 NTU standard solution

3-11 Empty testing bottle 1

3-12 Empty testing bottle 2

3-13 Battery Compartment/Cover

3-14 Clean Cloth

3-15 Clean Solution ( Distill Water )

SET UP

Battery Installation

This meter uses six AAA batteries. To install the batteries

before rst use:

1. Unscrew the two screws on the back of the meter. These

screws secure the battery cover.

2. Remove the battery cover.

3. Insert six new AAA batteries, ensuring correct polarity.

4. Replace the battery cover and reinstall the screws.

Replace the batteries when the low-battery icon blinks on

the LCD.

Note…

Before replacing the batteries, turn the meter o󰀨.

Meter On and O󰀨

1. Press POWER to turn the meter on/o󰀨

2. The meter will automatically turn o󰀨 after ten minutes

of inactivity.

CALIBRATION

Before beginning the calibration procedure, locate the two

calibration solutions and keep them close to the meter. If

the calibration is not performed quickly, the meter will return

to test mode and the calibration will not hold. While this

does not damage the meter, the calibration will have to be

performed again.

1. Remove the 0NTU and 100NTU bottles from their

protective cases. Tighten both caps and shake the bottles

gently to ensure they are properly mixed.

2. Clean the outside of both bottles to ensure there are no

ngerprints on the glass. Fingerprints or dirt on the glass

will alter the readings, so it is critical to handle the bottles

by the cap from this point on.

3. Turn the meter on.

4. Press and hold the TEST/CAL button until CAL appears

on the screen.

5. Let go of the TEST/CAL button. The screen will display

0.0, prompting for the 0NTU standard solution. You will

have 20 seconds to perform the next step or the meter will

exit calibration mode and return to test mode.

6. Place the 0NTU bottle into the test chamber, lining the

vertical white line of the bottle with the white dot on the

meter. Close the lid and press the TEST/CAL button once.

The meter will ash the word CAL on the screen for up to

ten seconds.

Note…

If the word Test appears on the screen, you did not perform

step 6 fast enough and will need to repeat the process.

7. If the zero point calibration was successful, the meter

will stop blinking and display the number 100, prompting

for the 100NTU standard solution. Again, you will have

20 seconds to perform this step or the meter will exit

calibration mode.

8. Place the 100NTU bottle into the test chamber, lining

the vertical white line of the bottle with the white dot on

the meter. Close the lid and press the TEST/CAL button

once. The meter will ash CAL on the screen for up to

ten seconds.

Note…

If TEST appears on the screen, you did not perform the

100NTU point fast enough and will need to repeat the process.

9. If the calibration was successful, the screen will stop

blinking and display 0.0, indicating that it is ready to

test samples.

MEASUREMENT PROCEDURES

For Single Point Readings

1. Pour test sample into one of the two included sample vials.

2. Gently shake the bottle to ensure the sample is properly

mixed. If there is sediment in the sample that sinks to the

bottle of the vial, the meter will not detect it.

3. Tighten the cap and clean the outside of the sample bottle

with a lint free cloth. Be careful not to touch the glass as

ngerprints can a󰀨ect the readings. Handle the sample

vial by the cap.

4. Place the sample vial in the test chamber, lining up the

white line on the bottle with the white dot on the meter.

5. Press the TEST/CAL button once.

For Multi Point Readings

Multi-point mode produces the minimum and maximum

values of a set of samples. This is especially useful in the

case where there are slight changes in the turbidity of many

samples or there is heavy sediment in a single sample.

In the case of sediment, you can use this function to get

a minimum and maximum reading based on how well the

sample is mixed.

Note…

This mode will only provide the minimum and maximum of

the samples tested and will not internally store or recall the

individual readings within that sample set.

1. Press the MIN/MAX button to enter multi-point mode. REC

will appear in the upper right hand corner of the meter.

2. Prepare the test sample in the included sample vials and

ensure they are clean, dry and free of ngerprints.

3. Place the test sample in the chamber and close the lid.

4. Press the TEST/CAL button once. The meter will display

the turbidity value of the sample in NTU.

5. Repeat steps 3 and 4 for all samples. The meter can

analyze up to 50 samples.

6. Press the MIN/MAX button when you are nished with

all samples. After pressing the MIN/MAX button, no new

values can be added to the set.

7. Press the MIN/MAX button as often as needed to display

the minimum and maximum turbidity values of the data set

in NTU.

8. Press and hold the Min/Max button to exit the Multi-

Point mode.

9. After exiting, all values are cleared. Therefore, the next

time you enter Multi-Point mode, the meter will only

analyze the samples within the new set.

Zero Point Adjustment

This feature is used for low turbidity systems such as well

water, tap water, or surface water from lakes and rivers. This

method is e󰀨ective for any solutions whose expected value

is <2.0 NTU. The feature allows you to dene a custom

standard for the zero value. All successive measurements

will be o󰀨set by this zero value.

Note…

The Zero Adjustment is NOT a calibration. Calibration

is performed using the 0NTU and 100NTU solutions as

described on page 6.

1. Obtain a sample of your zero standard. This standard

should be the lowest turbidity seen in your sample sets.

For example, if you were testing a ltration system for

drinking water, you would want to obtain a sample from

the most successful ltration produced.

2. Place your sample in one of the included test bottles,

tighten the cap and ensure the outside of the bottle is free

of ngerprints.

3. Place the sample in the test chamber lining up the two

white lines and close the lid.

4. Press and hold the ZERO button until ZERO appears on

the LCD and release the button.

5. The screen will display 0.0 NTU.

6. All readings will be o󰀨set by the zero value until the meter

is recalibrated or zeroed with the 0NTU standard.

Data Hold

The Minimum/Maximum functions on the meter are disabled

during data hold. Also, new readings cannot be taken.

1. Press HOLD to freeze the reading on the display. “Hold”

appears at the top of the LCD and the reading remains on

the display until hold is disabled.

2. Press HOLD to return to Normal Mode.

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