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24 months legal warranty
60 days Labexchange Fullguarantee
Certificate of operativeness
The Labexchange right of return
Optional installation of equipment for immediate and safe use of equipment
Questions regarding this device
The legal warranty period for our devices is 24 months from delivery date.
All used instruments of Labexchange are subject to a technical inspection before delivery and will be supplied only, when they function perfectly well. The verification and functionability is documented by a service report of an independent service company. The Labexchange Fullguarantee is 60 days from delivery date. Malfunctions occurring within the warranty period will be corrected by us free of charge. (Valid for countries within the EU and CH)
Our certificate of operativeness ensures a technically perfect condition.
You are on the safe side with our used laboratory and analysis systems! For even more security during the purchase, we are granting the Labexchange right of return.
Return your laboratory or analysis system simply without explanation.
Our special terms and conditions are to be applied:Labexchange right of return(https://www.labexchange.com/fileadmin/user_upload/pdf/downloads/en/Rueckgaberecht_08_18_E.pdf)
On demand, we verify the option of an extension of warranty for your device. If possible, the period of warranty is 6 months for 10 % extra charge and 1 year for 20 % extra charge on the list price. (Valid for DE, AT, CH, FR, NL, BE, LU, GB and IR)
Play it safe! We are pleased to offer you the installation of your laboratory equipment. Our qualified technicians install the device on your desired date in the laboratory, so that you can work quickly and safely with your new laboratory equipment.
The installation of the equipment by Labexchange brings further advantages. You thereby obtain a guarantee extension to 6 months and you have also the right to the Labexchange Repurchase Guarantee. You receive sensible laboratory equipment and analytical systems as well as much of the available laboratory hoods, already incl. installation.
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The second-hand devices are verified by Labexchange Service GmbH before delivery. You are receiving only fully functional devices.
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.
Parcel services, forwarding agencies, self-pickup, delivery by Labexchange fleet.
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.
For deliveries to countries outside the EU, an additional fee of 70,00€ for export is charged. 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.
We do not accept payment by credit card, 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 invoice is only possible for corporate clients.
NL, BE, LU
Payment by invoice is only possible for corporate clients
Other countries
Payment in advance
Our General Terms of Sale, Delivery and Payment are valid and are available for download here.
The goods are offered subject to prior sale.
All articles are used articles, except an article is listed especially as a new device.
Status
Condition
Immediately available
Used
The article is on stock. Our service technicians will verify the article before delivery. You are receiving only a fully functional article.
Published
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.
Modell: P-950
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.
Pump P-950 features:
Operating pressure up to 1.0 MPa (10 bar, 145 psi).
Flow rates up to 50 ml/min.
A pressure sensor connected to the pump outlet.
Pump P-950 is a single-channel laboratory pump for use as a sample pump in ÄKTAdesign liquid chromatography systems.
An eluent in an external vessel is drawn into three liquid chambers in the pump. A stepper motor assembly performs the pumping action of the chambers. This assembly acts on the chambers in a sequential order, which gives a smooth flow from the pump
The pressure generated by the sample pump is continuously monitored by the pressure transducer housed in the pressure sensor housing. The signal, which is proportional to the pump pressure, is read by UNICORN via the UniNet-2 connection.
The pump has two connectors on the bottom side for connection to the UniNet-2 communication network. This enables control of the pump from UNICORN, version 3.2 or higher, via Pump P-900 or Pump P-920. The UniNet-2 Gable also supplies power to the pump.
Pump P-950 has one inlet and one outlet connected to three liquid chambers. The chambers haue flexible membranes which do the actual pumping of the liquid. The membranes are actuated by pistons driven by a rotating stepper motor assembly. This gives a sequential Operation on the chambers, which results in a smooth and continuous liquid delivery.
Each of the three liquid chambers has a flexible membrane and two holes for inlet and outlet. The inlet to each chamber is fed from the pump inlet. A rotating manifold ensures that only one chamber inlet is connected to the pump inlet at a time. The membranes are actuated by pistons in a sequential order from completely pressed out to fully retracted. Hence, one chamber will draw solvent while the second is expelling solvent and the third is about to starr drawing or expelling.
When a chamber is full, the rotating manifold closes the chamber inlet and opens the chamber outlet instead. Therefore, no check valves are required. At the same time, The piston starts to press on the chamber membrane. This forces the solvent out from the chamber and through the pump outlet. On the way out, the solvent passes the pressure sensor housing where the pressure is measured.
The sequential pumping action of the pistons is provided by a stepper motor through an axial bearing. The bearing is slightly tilted, which creates a reciprocal motion on the pistons during the rotation.
The stepper motor has automatic speed control to reduce pulsation.
Flow rate range 0.1-50 ml/min in steps of 0.1 ml/min
Pressure range 0-1.0 MPa (10 bar, 145 psi)
Flow rate accuracy ±3% or ±0.1 ml/min whichever is greater
Flow rate reproducibility rsd < 2% or ±0.1 ml/min whichever is greater
Viscosity Max. 5 cP for complete flow range. At reduced flow rate (≤ 10 ml/min): max. 10 cP.
Pressure sensor
scale error Max. ±2%
Offset error Max. 0.01 MPa/week
Tubing connectors
pump inlet male UNF 5/16"
pump outlet male UNF 10-32
pressure sensor inlet male UNF 10-32
pressure sensor outlet male UNF 10-32
Internat volume 1.1 mi including pressure sensor housing
Control Via UniNet-2 Gable connection
Degree of protection IP 21
Wetted materials
liquid chambers Simriz, PEEK
pump outlet and inlet Polyethene, titanium
rotating manifold Ceramic, Kalrez
pressure sensor outlet PEEK
and inlet
pressure sensor titanium
Chemical resistance The wetted parts are resistant to the chemicals listed below (synergistic effects haue not been taken into account; room temperature and limited over-pressure is assumed).
Unless otherwise stated, all concentrations are 100%:
Acetic acid, 0.1 M
Acetone, 1
Aqueous buffers, pH 2-12
Decon 90, 10% (for washing only)
Ethanol, 20%
Ethanol, 96% (for washing only)
Ethylene glycol
Formic acid, 1%
Guanidine, 6 M
HCI, 0.1 M
Isopropanoi, 30%
Lysozyme, 2 mg/ml
Methanol, 20%
NaOH, 0.1 M
NaOH, 1 M (for washing only)
SDS, 10% (short term use)
TFA, 0.2%
Triton-X, 2% (short term use)
Urea, 8 M
Power requirement 32 V DC
Environment +4 to +40 °C
10-95% relative humidity
84-106 kPa (840-1060 mbar)
Dimensions, H x W x D 120 x 100 x 140 mm
EMC standards This product meets the requirements of the EMC Directive 89/336/EEC through the harmonized standard IEC/EN 61326-1 (emission and immunity).
Note: The declaration of conformity is valid for the Instrument if it is:
used in laboratory locations
used in the saure state as it was delivered from Amersham Pharmacia Biotech except for alterations described in the User Manual
connected to other CE-Iabelled Amersham Pharmacia Biotech modules or other products as recommended.
Your Labexchange-Team will gladly help:
Christian Schmid Laboratory and analysis, Laboratory equipment, Life science
Hubert Sauter Spectroscopy, Chromatography