More Information
Objektnummer	B00014629
ID-number	014629
Object name	Advanced Instruments 4D2 Digimatic
Status	Archiv

Status, terms of delivery and payment

Verification of devices

The second-hand devices are verified by Labexchange Service GmbH before delivery. You are receiving only fully functional devices.

Dispatch time

The stated dispatch times are the shortest possible ones for each article. The effective dispatch times can vary. The effective dispatch times will be stated in the order confirmation.

As a matter of principle, we are offering collective deliveries. The shipping time is calculated based on the position with the longest lead time. A partial delivery is possible on explicit request.

Shipping methods

Parcel services, forwarding agencies, self-pickup, delivery by Labexchange fleet.

Delivery information

Prices exclude shipping costs. Stated shipping costs are to be expected. Deviations are possible. If transport costs are not specified, please ask separately for them.

The stated transport and packing charges apply to the most favorable route if transport and are to be understood as subject to verification due to unexpected cost increases. By reason of unpredictable events, cargo rates and delivery times can change at any time and therefore have to be adapted to the recent situation. Import formalities and possible customs charges will be borne by the purchaser. Incoterm coding according to Incoterms 2010: For persons who collect the devices themselves: EXW, for dipatch by sea: CFR, by air freight: CPT, other shipments: DAP. Note for international shipments: A proof of preference/EUR1 will not be issued by us. When self-collecting/ordering EXW from countries within or outside the European Union, 16% VAT will be retained as a deposit until we have received the corresponding confirmation of arrival/bill of delivery from the buyer.

Terms of payment

We do not accept payment by letter of credit, PayPal, etc. In each case the invoice amount is payable without deduction. Discount is not granted.

Country	Possible payment methods	Comment
DE, AT, CH	Payment by invoice, payment in advance, paymet by credit card	Payment by invoice is only possible for corporate clients.
NL, BE, LU	Payment by invoice, payment in advance, payment by credit card	Payment by invoice is only possible for corporate clients
Other countries	Payment in advance, payment by credit card

Our General Terms of Sale, Delivery and Payment are valid and are available for download here.

The goods are offered subject to prior sale.

Definition of status

All articles are used articles, except an article is listed especially as a new device.

Status	Condition	Comment
Immediately available	Used	The article is fully functional and in impeccable condition. It can be shipped immediately.
In stock	Used	The article is on stock. Our service technicians will verify the article before delivery. You are receiving only a fully functional article.
Published	Used	The article is still with the provider. After your order the article will be purchased and verified by us before being shipped to you. A certificate of operativeness as well as a service report are included in delivery.
New device	new	The article is brand new and unused. Regarding new equipment the guarantee/warranty conditions of the corresponding manufacturer apply.
Labprocure	Used	Labprocure GmbH, as the advertiser, is responsible for the content of this device offer. Labprocure assumes liability for the offers advertised here and for the photos and offer texts included. Labprocure GmbH, Bruckstraße 58, 72393 Burladingen.

Company: Advanced Instruments

Model: 4D2 Digimatic

Comment: Documents Deut. / Engl.

The following illustrations and descriptions instrument model and are drawn from brochures.

Do not give the delivery volume again.

The exact delivery content you find only in the offering text.

Description Advanced Instruments 4D2 Digimatic Freezing Point Osmometer.

The Advanced Instruments 4D2 osmometer is a Completely automatic, single sample cryoscope milk conforming to the Official Standard and AOAC and APHA Test Methods (USA). Easy to read digital display stores test results until operator starts next test. Motorized head Lowers at touch of a button automatically rises When each test is completed. Sample size is 2.0ml. Range is 0-1000mC. Readability is +/- 0.002C or +/- 0.4% added water (+/- 1 SD).

THEORY OF FREEZING MEASUREMENT
Kryoskopie to determine the water balance of the milk

If you give one molecule of a non-ionic solute in a kilogram of water, so:

decreases the freezing point by 1 .86 degrees C

increasing the osmotic pressure to 17,000 mm Hg = 22.4 atm

increases the boiling point of 0.52 degrees C

drops the vapor pressure to 0.3 mm Hg.

MEASUREMENT PRINCIPLE

The quickest and most accurate way to measure the freezing point, a solution is to be cool several degrees below its freezing point and then to shake inwardly. This initiates the instantaneous formation of many crystals. Melting heat is released, the sample temperature rises and keeps in balance, while the temperature is measured.

The temperature at which this change of state occurs, is a function of the chemical treatment and concentration of the sample. It is a repeatable phenomenon which is the freezing point on the degree of sub-cooling in dependency.

The time in which this process is going on, is the function of the temperature differences between the sample and its environment, and the ability of these surrounding substances to conduct heat. Level and temperature of the bath should be balanced so that the cooling is rapid, but not so fast that the hypothermia is uncontrollable. When the thermistor (sample probe) or the sample tube is much warmer than the sample itself, the heat of which will flow out to the sample and distort the freezing curve.

Heat flows constantly from the sample to the bath, to cool the first sample, then to cause the change in state. Finally, the melting heat is removed, the sample is cooled to ice, and continue until the bath temperature has been reached.

The thermistor senses the temperature in the sample tubes. Because only a small part of the sample surface is detected, it is important that the sample temperature is uniform. If the probe is not centered or Cefälle occur during freezing or convection after freezing, the measurement will not be accurate.

MEASUREMENT PROCEDURE

This diagram shows the temperature of a sample as it passes through the freezing cycle and the activities of the unit at each work stage.

1) The measuring head was lowered into the sample, this will begin to rapidly cool and the digital meter displays 0 0 0 0th

2) If the temperature of the sample reaches 0 degrees C, begins to count at the meter. The cooling process is slowing down.

3) If the gauge indicates 3000, the sample is supercooled enough. A 1 sec Rüttelimpuls shake the sample vigorously and it comes to solidification.

4) The instrument falls rapidly when the melting heat escapes from the sample and the temperature rises up to the actual freezing point of the sample.

The counting of the meter slows down as soon as the trial approaches its freezing point.

5) The reading of the meter remains almost constant if the device follows the sample plateau.

6) Once the device has the certainty that the plateau is constant, it locks the reading for measuring instrument and the measuring head comes out.

The device is now ready for another attempt.

Product group: Osmometers

We can't find products matching the selection.