Jouan C 4.22
With swing-bucket rotor and inserts.
Maximum speed 4750 rpm.
Rotor chamber Ø 450 mm.
Foil control panel with digital display.
230 V, 50 Hz, 660 W.
| Objektnummer | B00044764 |
|---|---|
| ID-number | 44764 |
| Object name | Jouan C 4.22 |
| Manufacture | Jouan |
| Shipping | 10-14 working days |
| Status | Stock unit |
Product group: ZENT
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.
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Country |
Possible payment methods |
Comment |
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DE, AT, CH |
Payment by invoice, payment in advance, paymet by credit card |
Payment by invoice is only possible for corporate clients. |
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NL, BE, LU |
Payment by invoice, payment in advance, payment by credit card |
Payment by invoice is only possible for corporate clients |
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Other countries |
Payment in advance, payment by credit card |
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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. |
- PRESENTATION
The C4-22, CR4-22 and CT4-22 centrifuges are used for the Separation of substances, of varying density, by centrifugal force.
The C4-22 is a ventilated unit.
The CR4-22 is a refrigerated unit.
The CT4-22 is a thermostated unit.
In the C4-22, there is a permanent air circulation which reduces the heat level in the rotor chamber. However the temperature of the accessories can reach 10 to 12°C above the ambient temperature.
The CR4-22 refrigerated unit is equipped with a cooling unit which can maintain the rotor chamber temperature at or below the ambient temperature.
The CT4-22 thermostated model is equipped with a cooling unit and with a heating resistor which enable the control of the rotor chamber temperature below, above and at the ambient temperature.
INSTALLATION PROCEDURES
Unpacking
Carefully remove the unit, the accessories and the documents from the packing.
As the unit is heavy, a minimum of two people are required to handle it.
Check all items are present using the delivery note.
Remove the foam pad locking the imbalance detector according to the specific instruction street included in the unit.
Location
Place the centrifuge in a clean, non-corrosive environment to prevent damage to the centrifuge and its accessories.
Install the centrifuge to allow at least 15 mm clearance between the back of the centrifuge and any obstruction.
This clearance is necessary to get the highest cooling performance.
Mains supply
C4-22 220/240 Vac +/-10% - 50 Hz 6 A single phase + ground
120 Vac +/-10% - 60 Hz 12 A single phase + ground
CR4-22 220/240 Vac +/-10% - 50 Hz 10 A single phase + ground
120 Vac +/-10% - 60 Hz 16 A single phase + ground
208/230 Vac +/-10% - 60 Hz 10 A single phase + ground
CT4-22 2201240 Vac +1-10% - 50 Hz 10 A single phase + ground
120 Vac +1-10% - 60 Hz 16 A single phase + ground
208/230 Vac +/-10% - 60 Hz 10 A single phase + ground
Lid opening
After the centrifuge has been switched ON, press the COVER key: the LID is automatically unlocked and opens.
In case of a power cut-out or when the centrifuge is switched off, it is possible to open the lid, using the tool provided with the unit. Insert the rod into the access hole located on the top left side of the centrifuge, and press it until the lid opens.
CAUTION : The rotor may be rotating. Check the rotor has stopped before opening, by looking through the lid viewport.
Accessory Installation
- Remove the shaft nut (by turning the nut clockwise).
- Check the cleanless of the shaft and the rotor.
- Place the rotor on the shaft.
- Screw the shaft nut and secure lt by using the key provided in the tool kit.
- In the case of a swing-out rotor, grease the trunnions.
- Place the buckets on the trunnions after checking the weight of the buckets is identical (the weight is engraved on the bottom of each bucket).
Balancing the load
When using fixed angle rotor, weight deviation between the tubes must not exceed +/- 5 grams.
When using a swing-out rotor, the samples are placed in plastic inserts. The load must be statically and dynamically balanced
Static balancing consists of balancing the weight of the 2 inserts which are is opposed location in the rotor (+/- 25 grams). Dynamic balancing consists of placing the tubes in each insert symetrically according to the shaft axis of the rotor.
PRINCIPLES OF OPERATION
Drive System
The mains input voltage is converted to a variable DC voltage. This DC voltage is varied by compari-son of the speed control voltage setting with the tachometer feedback voltage. The greater the DC voltage applied to the motor, the faster the motor will spin a given rotor.
The C4-22, CR4-22 and CT4-22 centrifuges feature current limiting dependent on motor load by rotor and accessories. The shape of the rotor is primary load factor : a horizontal rotor presents a greater load than a fixed-angle rotor. The larger the diameter of a rotor, with accessories, the greater the load, and the lower the maximum R.P.M.
Relative centrifugal force (RCF), at the circumference of a rotor and bucket combination, is directly proportional to the (R.P.M.) and radius of the rotor. Therefore, a greater R.P.M. and/or a larger radius produces a greater R.C.F. and improved separation of substances.
Safety interlock system
The C4-22, CR4-22 and CT4-22 are equipped with an interlock system that prevents opening of the centrifuge lid when the rotor is spinning. The centrifuge will not operate until the lid is closed and latched in place. The lid remains latched until the rotor stops spinning. The lid access lamp indicates when the rotor has stopped and the lid access switch can be actuated to open the lid.
NOTE If a power failure occurs, access to the samples in the centrifuge is possible. Insert and push the rod provided with the centrifuge accessory kit, into the access hole located on the top left side of the centrifuge. Perform bypass only under emergency conditions as the rotor could still be rotating.
Imbalance detection system
Both models are equipped with an imbalance system that contacts a switch when an unacceptable imbalance is present in the rotor load. As the switch is contacted, the control module shuts down voltage to the motor and the rotor comes to a stop.
The imbalance condition is displayed with the message IMBALANCE and the red ALARM light is on. When the motor stops, opening and correctly loading the rotor allows unit to be restarted.
NOTE The C4-22, CR4-22 and CT4-22 will tolerate 15 to 20 grams of imbalance. Carefully balance the sample load to avoid actuating the imbalance detection system.
If the locking foam pad has not been removed from the imbalance detection device, the centrifuge will consider an imbalance situation.
Refrigeration system
The CR4-22 and CT4-22 are equipped with a refrigeration system which allows the rotor chamber temperature to be controlled at a lower level than the ambient temperature. The measured value in the air in the bowl is displayed and the temperature is monitored by the microprocessor which controls the cooling unit.
The operator can use a temperature compensation procedure so that the sample temperature can be more accurately controlled.
Empirical tests by the user will enable him to know what air temperature to select compared to the normal temperature of the protocol. For example, suppose samples at 20°C need to be spun at 4°C. lt might be found that with protocol temperature (T) of 4°C the temperature difference (TD) of the air in the bowl has to be set at -3°C in order that the samples average 4°C during the run. So the air will be maintained at 1 °C.
When the centrifuges are equipped with a M4 rotor, the minimum temperature which can be continuously maintained is 4°C for a maximum speed of 4500 r.p.m. at an ambient temperature below 25°C.
CT4-22 Heating system
Moreover, the CT4-22 includes a heating system which enables an accurate control of the rotor chamber temperature when the set value is dose to the ambient temperature or up to 60°C.
However, this threshold of 60°C is reduced to 50°C if the set speed is lower than 1000 r.p.m.
