Sartorius YDK04 Bedienungsanleitung

98648-019-55

User’s Manual | Betriebsanleitung | Mode d’emploi |

Instrucciones de funcionamiento | 操作指南

Sartorius YDK04

Density Determination Kit | Dichtebestimmungsset

Dispositif de détermination de masses volumiques |

Kit para la determinación de la densidad | 密度测定套件

98648-019-29

English – page 3

Deutsch – Seite 17

Français – page 31

Español – página 45

中文 – 第 59 页

Contents

Kit Components � � � � � � � � � � � � � � � � � � � � � � � � � � � 5

Getting Started � � � � � � � � � � � � � � � � � � � � � � � � � � � 6

Method Used to Determine Density � � � � � � � � � � � � 8

Sources of Error and Options for Correction � � � � � 9

Density Determination � � � � � � � � � � � � � � � � � � � � � � 12

– of Solid Objects � � � � � � � � � � � � � � � � � � � � � � � � � � 12

Tables � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 13

Density Values of H2O � � � � � � � � � � � � � � � � � � � � � � � 13

Density Values of Ethanol � � � � � � � � � � � � � � � � � � � � 14

Appendix � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 15

The new Sartorius Density Determination Kit is a high-

quality accessory to your electronic balance�

With this accessory, Sartorius is making your daily work

easier�

Please read through the set-up and user’s manual

carefully before setting up the balance and starting

your work with the density determination kit�

If you equip your balance with a density

determination program, the program will then

determine the density for you.

In this particular case, please refer exclusively to the

set-up guide and work instructions.

The density determination should then be carried out as

described in the instructions for the density

determination program�

Kit Components

1 Beam

2 Cover plate

3 Immersion frame

4 Sample holder (pan hanger assembly)

5 Container

6 Thermometer

Fastening clamp

Getting Started

The YDK04 density determination kit can be used with

the following balances:

– Secura®

Type 1102, 2102, 3102, 5102

– Quintix®

Type 612, 1102, 2102, 3102, 5102

– Practum®

Type 612, 1102, 2102

Preparing the Balance

Before placing the beam on the balance, the balance

will need to be modified�

tRemove the weighing pan and pan support for the

balance�

Installing the Density Determination Kit

To install the density determination kit on the balance,

proceed as follows:

tMount the beam on the stud of the balance�

tMount the cover plate on the beam you have just

attached�

When doing this, ensure the cover plate is exactly

positioned and centered�

tFill the container with liquid (e�g� water or ethanol)

and place the container on the mounted cover plate�

tInsert the sample holder (pan hanger assembly) into

the immersion frame�

tAttach the immersion frame, with the sample holder

mounted on it, to the beam�

Make sure that the sample holder is fully immersed

in the liquid� Add more liquid if necessary�

When immersing the sample holder, make sure that

there are no air bubbles in the sample holder�

tUse the fastening clamp to fasten the thermometer

to the container (where this is required)�

W (a) ∙ ρ (ﬂ)

ρ =

W (a) – W (ﬂ)

Where:

ρ = the density of the solid object

ρ (ﬂ) = the density of the liquid

W (a) = the weight of the solid object

in air

W (ﬂ) = the weight of the solid object

in liquid

To determine the density of a solid object,

the measurement system employed here

uses the “Archimedes’ principle”:

An object immersed in liquid will be subject

to an upward buoyant force� This force is

equal to the weight of the liquid displaced

by the object�

Using a hydrostatic balance, which enables

you to weigh the solid object in air and

in water, it is possible to determine the

density of a solid object, if the density of

the buoyancy medium is known:

Method Used to Determine Density

Effect of Temperature on the Liquid

Density

The density of the buoyancy liquid is

temperature dependent� The density

change per °C temperature change is

of the order of:

– 0�02% for distilled water

– 0�1% for alcohols and hydrocarbons�

In other words, this can show up in the

third decimal place during density

determination�

To correct the liquid density based on

temperature, proceed as follows:

– measure the temperature of the liquid

using the thermometer supplied�

– the density of the most common

buoyancy liquids, water and ethanol,

at the measured temperature can then

be found in the table provided and used

for ρ (fl)�

The above formula to determine the

density of solid objects is sufficiently

accurate for determining the density

to two decimal places depending on

samples volume� This density kit is

designed for determining density of

10 g – 2 kg weight of samples�

Depending on the accuracy required, the

following error and correction factors will

need to be considered:

– effect of temperature on the density of

the bouyancy liquid

– air bouyancy when weighing in air

– changes in the immersion depth of the

immersion frame when immersing the

sample

– adhesion of the liquid to the immersion

frame

– air bubbles sticking to the sample�

Some of the errors can be corrected

mathematically� To do this, you have to:

– measure the temperature of the liquid

and correct the liquid density

accordingly�

Sources of Error and Options for Correction

Air Buoyancy

Depending on the temperature, humidity

and air pressure, a 1 cm3 volume of air will

have a weight of around 1�2 mg� When

weighing in air, the object experiences

a corresponding buoyancy per cm3 of its

volume� The error that results if the air

buoyancy is not allowed for shows up in

the third decimal place and should

therefore be corrected�

The buoyancy force is taken into account

in the following formula:

W (a) ∙ [ρ (ﬂ) – ρ (a)]

ρ = + ρ (a)�

W (a) – W (fl)

Where ρ (a) = 0�0012 g/cm3 = density of

air under normal conditions (temperature

20°C, pressure 101�325 kPa)�

Immersion Depth

The sample holder to collect and/or

immerse the sample during the weighing in

liquid is fastened rigidly to two wires and

plunges about 30 mm deep into the liquid�

Since the balance is tared prior to each

measurement, the additional buoyancy

from the submerged part of the

measurement setup is not factored

into the determination of the density�

When weighing in liquid, a volume of

liquid corresponding to the volume of the

sample body gets displaced�

This causes the fastening wires on the pan

to plunge deeper and generate additional

buoyancy, creating an error in the density

determination�

The following formula will correct the

error:

W (a) ∙ [ρ (ﬂ) – ρ (a)]

ρ = + ρ (a)

Corr [W (a) – W (ﬂ)]

Inhaltsverzeichnis

Sprachen:

Andere Sartorius Laborausrüstung Handbücher

Sartorius

Sartorius Sartocheck 4 plus Bedienungsanleitung

Sartorius

Sartorius cubis MPS Bedienungsanleitung

Sartorius

Sartorius Tacta Bedienungsanleitung

Sartorius

Sartorius talent Bedienungsanleitung

Sartorius

Sartorius BIOHIT Picus Bedienungsanleitung

Sartorius

Sartorius Flexsafe Pro Bedienungsanleitung

Sartorius

Sartorius MD8 16746-01--SHB Bedienungsanleitung

Sartorius

Sartorius CERTOMAT Tplus Bedienungsanleitung

Sartorius

Sartorius Biosafe 110 Port Bedienungsanleitung

Sartorius

Sartorius Proline Bedienungsanleitung

Sartorius

Sartorius WZG Series Bedienungsanleitung

Sartorius

Sartorius Cubis MCE Series Bedienungsanleitung

Sartorius

Sartorius Midi Plus Bedienungsanleitung

Sartorius

Sartorius ePET Bedienungsanleitung

Sartorius

Sartorius PICUS Bedienungsanleitung

Sartorius

Sartorius Cubis MCA Series Bedienungsanleitung

Sartorius

Sartorius VL1005 Bedienungsanleitung

Sartorius

Sartorius YCP06SQ Bedienungsanleitung

Sartorius

Sartorius Proline Plus Bedienungsanleitung

Sartorius

Sartorius Vivacon 500 Bedienungsanleitung

Sartorius

Sartorius Cubis MCE Series Bedienungsanleitung

Sartorius

Sartorius PICUS Bedienungsanleitung

Sartorius

Sartorius Vivaspin Filtrate Bedienungsanleitung

Sartorius

Sartorius Sartorius SWC Bedienungsanleitung

Beliebte Laborausrüstung Handbücher anderer Marken

Qiagen

Qiagen DML 3000 Bedienungsanleitung

Queensgate

Queensgate NANOSCAN OP400 Programmierhandbuch

Conviron

Conviron GEN1000-GE Bedienungsanleitung

Parr Instrument

Parr Instrument 4560 Bedienungsanleitung

IKA

IKA IC control Bedienungsanleitung

Integra

Integra DOSE IT Bedienungsanleitung

Agilent Technologies

Agilent Technologies 5800 ICP-OES Bedienungsanleitung

Endress+Hauser

Endress+Hauser Cleanfit CPA875 Bedienungsanleitung

NI PXI-5422 Handbuch

Collomix

Collomix Aqix Bedienungsanleitung

SPEX SamplePrep

SPEX SamplePrep 6875 Freezer/Mill Series Bedienungsanleitung

Ocean Insight

Ocean Insight FLAME-NIR+ Bedienungsanleitung

Parker

Parker ALIGN-MG-NA Bedienungsanleitung

BD 644787 Bedienungsanleitung

DENTAURUM

DENTAURUM Compact Megaplus Bedienungsanleitung

Biuged Laboratory Instruments

Biuged Laboratory Instruments BGD 626 Bedienungsanleitung

VWR

VWR SAS Super IAQ Bedienungsanleitung

illumina

illumina MiSeqDx Bedienungsanleitung