KERN YDB-04 User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating and Installation Instructions
Density determination set pour
KERN EMB / EMB-V
KERN YDB-04
Type:
TYDB-04-A
Version 1.0
2019-08
GB
YDB-04-BA_IA-e-1910

2 YDB-04-BA_IA-e-1910
GB KERN YDB-04
Version 1.0 2019-08
Operating and Installation Instructions
Density determination set pour KERN EMB / EMB-V
Contents
1INTRODUCTION ............................................................................................................................ 3
1.1 SCOPE OF DELIVERY................................................................................................................. 3
2DIMENSION [MM].......................................................................................................................... 4
3COMMISSIONING.......................................................................................................................... 5
3.1 INSTALLATION........................................................................................................................... 5
3.1.1 How to prepare the weighing balance ............................................................................... 5
3.1.2 Installing the density determination set ............................................................................. 6
4DENSITY DETERMINATION OF SOLIDS..................................................................................... 7
4.1 KERN EMB 200-3V................................................................................................................ 8
4.2 KERN EMB .......................................................................................................................... 11
5DETERMINING DENSITY OF LIQUIDS ...................................................................................... 12
5.1 KERN EMB 200-3V.............................................................................................................. 12
5.2 KERN EMB .......................................................................................................................... 16

YDB-04-BA_IA-e-1910 3
1 Introduction
•In order to guarantee a safe and trouble-free operation, please
read carefully the operating instructions.
•These operating instructions only describe the operation of the
density determination set. For further information on how to
operate your balance please refer to the operating instructions
supplied with each balance.
1.1 Scope of delivery
Check packaging and density determination set immediately when unpacking for
possible visible damage.
Make sure that all parts are completely present.

4 YDB-04-BA_IA-e-1910
2 Dimension [mm]
Platform
Hooks

YDB-04-BA_IA-e-1910 5
3 Commissioning
Compatible models:
KERN EMB (only models with weighing plate Ø 82mm)
KERN EMB 200-3V
3.1 Installation
3.1.1 Prepare the weighing balance
•If necessary, carry out necessary adjustment before installation of the density
set.
•Correct adjustment is no longer possible after the density kit has been
installed.
•For reasons of adjustment, take away the density set and place the standard
weighing plate.
Disconnect scale from power supply.
Remove standard weighing plate.

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3.1.2 Installing the density determination set
Insert hook into one of the two holes.
Place the platform for support of the glass beaker.
Arrange a beaker glass (not included in the scope of delivery)
Bring liquid and instruments to the right temperature until you achieve a constant
temperature. Observe the warm-up time of the balance.

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4 Density determination of solids
For the determination of the density of solids, the sample is first weighed in air and
then in the aid liquid, whose density is known.
The buoyancy results from the weight difference.
In KERN EMB 200-3V the balance calculates automatically the density and displays
it.
For models without density calculation function the density must be calculated
according to the following formula.
ρDensity of sample
A Weight of the sample in air
B Weight of the sample in the aid liquid
ρoDensity of the aid liquid
The air buoyancy is not considered in the formula.
In most cases distilled water or ethanol are used as aid liquid.
Preparation:
Install density determination set, see chap. 3.1.2

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4.1 KERN EMB 200-3V
+Invoke mode for density determination of solid material
1. Turn on the scale with , "0.000g" is displayed.
2. If the scale does not display, "0.000g", press
3. Access by pressing the density determination mode for solids.

(example water at 19°C)
"SOLId" is briefly displayed, followed by the actual entered density of the aid
liquid. If necessary, change as described later.
+Enter the density of the aid liquid considering the current temperature.
4. Press , the last digit flashes.
5. Use to increase the numeric value of the flashing cipher.
Use to move the number selection to the right, the respective active
position flashes.
6. Confirm input by .
(example water at 23°C)

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+Density determination “solids“
7. Hang the sample on the hook.
8. Press , the weight of the sample in air is shown.
(example)
9. Wait for stability display
10.Immerse the sample into the aid liquid.

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11. Press , for a short time the weight of the sample in the aid liquid is
displayed.
(example)
The weighing scale calculates automatically and then displays the solid matter’s
density.
(example)
When connecting an optional printer, press , the result will be printed.
Printout example KERN YKB-01N:
D-REF: 0.9976 g/cm^3 Density aid liquid
D-RSL: 8.0409 g/cm^3 Result (density of the sample)
W-AIR: 020.000 g Weight of the sample in air
W-LDQ:
017.432 g
Weight of the sample in liquid
Press , the balance will return to weighing mode.
For further measurements start at step 2.