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Objektnummer	B00015150
Seriennummer	015150
Nome oggetto	Biotest RCS Standard
Stato	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, payment 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.

Firma: Biotest

Modell: RCS Standard

Kommentar: Dokumente engl.

The following illustrations and descriptions are referring to the instrument model and are drawn from brochures. They are not representing the delivery volume. The exact delivery content you will find only in the offering text.

Applications

The Standard RCS Air Sampler is a convenient Instrument for measuring the concentration of airborne microorganisms.

Possible investigations include:

the general microbiological quality of ambient air

the efficiency of air treatment and air cleaning equipment

the effectiveness of decontamination measures

The Instrument can be used in the following areas:

food and beverage industries

packaging industry

pharmaceutical and medical device industries

. cosmetics industry

hospitals

public health offices

industrial hygiene

animal husbandry

Principle of Operation

The Biotest RCS Air Sampler operates on the impaction principle. The function of the air sampler is to deposit airborne microorganisms quantitatively onto a culture medium.

The air under examination is drawn into the sampler from a distance of at least 40 cm by means of an impeller. The air flow enters the impeller drum concentrically and in a conical form, is set in rotation, and the particles contained in the air are impacted by centrifugal force onto an agar medium. The air then leaves the drum in a spiral form around the outside of the tone of air entering the sampler. After sampling, the agar strip is incubated and the colonies are counted.

Due to its principle of operation and the geometric properties of the impeller system, the RCS Air Sampler exhibits a special volume characteristic. lt is therefore necessary to differentiate between the sampling volume (= total volume sampled) and the separation volume (= relevant volume for particle separation).

Sampling Volume

The air flow enters the impeller drum concentrically with a diameter of 2a and at velocity C_ax , is deflected by the impeller blade and fed over the agar strip. The air flow exists via an annular gap with width b. The total sampling volume(v) can be determined through a point by point measurement of the velocity and angle of flow over the radius r and subsequent mathematical evaluation. This sampling volume is 280 I/ min at the Instrument speed of 4096 rpm. This sampling volume is the basic parameter for calculating the separation volume.

Separation Volume

The particles in the air flow between the impeller blade and agar surface are accelerated by centrifugal force and impacted onto the agar surface. However, only part of the total sampling volume is relevant for particle separation. This separation volume can be determined mathematically, whereby the height of the impeller drum is the most important parameter. This height (I_min ) can be calculated for the separation of all particles contained in the total sampling volume. The basis for this is the resolution of a differential equation which describes the spiral flight path of the particles under the influence of the air flow velocity, the direction of flow and the centrifugal force that arises.

For a relevant particle diameter of 4 µm this produces a height (I_min ) of 14 cm. However, since only 2 cm of 14 cm are available in the impeller drum as the separating height, separation is not effected from the total sampling volume but only from 1/7 of this.

Thus separation volume for the Instrument is 40 liters per minute based on an average particle diameter of 4 µm.

Technical Data

Sampling principle

The Biotest Standard RCS Air Sampler operates on the principle of impaction, whereby the air stream enters the unit at the front of the instrument and the airborne microorganisms are separated out onto the agar strip by centrifugal force.

Measurement range:

Min. 20 liters, max. 320 liters

Air flow rate (Separation Volume):

40 l/min

Memory locations:

5 memory locations for 0.5, 1, 2, 4 and 8 minutes, in ascending order.

Motor speed:

4096 min¹ (rpm)

Instrument deviation:

± 2 %

Power supply:

4x1.5 . Volt monocells (alkaline D cells, type LR20) or mains adapter 230 Volt /110 Volt.

Electrical power:

3 W

Materials:

Housing: chromium plated brass

Keypad: polyester; resistant to common disinfection agents

Impeller Made: aluminumautoclavable

Impeller drum: chromium plated brass; autoclavable

Weight:

approx 1,300 g (2.9 Ibs) with batteries

Miscellaneous:

Screw thread connection for floor plate

Infrared remote control sensor

Keypad with pressure keys and LED indicators

LED indicator for battery voltage

Protection cap p made from POM; autoclavable

Connection for mains adapter

CE Mark

Gruppo prodotti: Miscellanea per Laboratorio

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