Eppendorf Centrifuge 5415 R

[Valorie Carlee]

TheEppendorf 5415Ddigital table top microfuge is extremely easy to use with knob control, virtually working as a turn key, walk away machine. Its small footprint andbrushless motor conveniently make it maintenance free. The 5415Dhas a maximum speed of 13,200 rpm and has a digital timer run time of up to 30minutes. The Eppendorf 5415D has a maximum capacity of up to 24 x 1.5ml tubes (or 36 x 0.5ml). With its space-saving design and user-friendly operating concept, the centrifuge is ideal for everyday routine tasks.

All of our equipment is fully tested to perform at factory specifications before being shipped.

Please confirm this rotor meets your application needs and request a different rotor, if necessary. Available rotors can be found in our Rotor Compatibility Guide.

Eppendorf 5415 is best known for its high quality construction, minimal foot prints, and high degree of flexibility. With its broad choice of high performance rotors, this low cost centrifuge can be used to perform in application areas such as routine clinical laboratory and biotechnological research.

I recently purchased a used Eppendorf 5415C centrifuge. It is supposed to have adjustable rotation speed, but it runs only at maximum speed and the RPM control knob can be turned, but it has no effect on the RPMs. I took it apart and cleaned the insides, and can't see any obvious problems with the electronic circuitry. Fuses seem fine and test good for continuity. Might anyone have an idea what I could check, or where I could find a service manual? Thanks in advance, Steve Clark

The button in the middle is a quick-run switch, used for a full-speed short runs where time is not important. Check to see if the actuator is stuck down, or if the microswitch it activates on the board is functioning properly.

Thanks a million for the manual, I had no luck finding one on the internet. I'm not very experienced with electronics, but have some science/physics background and can decipher some of it. I found no resistance between any combination of the 3 metal tabs (each other, and/or ground) on the top side of the speed control pot (I assume there for continuity testing). No change, no resistance, with the knob thru full rotation. The quick-run switch seems OK, and wasn't stuck on.

Just to clarify something first - you're getting zero ohms (dead short) across all tabs through full rotation? Are you measuring with the pot still on the board, or did you desolder and remove it? It's best to remove it first, because the short could be on the circuit board. You'll also be able to see the manufacturer's information (under the metal cover held by the nut, or on the bottom) for ordering a replacement, which will be the best way to go if you can, as it is a bit unusual. Eppendorf may not carry parts any more, but you might still be able to get them (or a close equivalent) through Digi-Key, Mouser, or Allied Electronics.

The Centrifuge 5415 D is a non-refrigerated bench-top centrifuge and the Centrifuge 5415 R is a refrigerated bench-top centrifuge. Both are used in research and routine laboratories in the biosciences, industry, clinics and chemistry.

The Eppendorf 5415 series centrifuges have been discontinued by the manufacturer and replaced by the 5424 and 5424 R models. However, a number of units are always available for sale on LabX. Rotors and accessories for the 5415 D/R are still available for sale from Eppendorf, or there is a wide selection of rotors and parts available on LabX as well.

Find online auctions and classified ads for Eppendorf products and more on the LabX Marketplace. Browse ads and contact the seller directly or request a quote for more details. Buy and Sell Eppendorf Equipment and Accessories today on LabX!

Centrifuge 5415 R has the same user friendliness and all the tried and tested technical features of the non-refrigerated 5415 D, including the almost indestructible maintenance-free drive, which requires only 13 seconds to accelerate to the maximum speed of 13,200 rpm (max. rcf: 16,000 x g).

The rotor runs so smoothly that particles that have already been pelleted are not unintentionally resuspended. Centrifuge 5415 R enables rapid and reliable refrigerated centrifugation in a temperature range between 0 C and 40 C. Temperature-sensitive samples are maintained safely at 4 C, even at maximum speed. In the stand-by mode, the centrifuge then can be set to the desired temperature. With the aid of the Fast Cool function, refreshing 4 C can be attained within a mere 16 minutes. One undisputed innovation on Centrifuge 5415 R is the new motorized lid latch. Two built-in gripper arms close

the newly designed lid automatically.

The Eppendorf 5415D digital table top microfuge is extremely easy to use with knob control, virtually working as a turn key, walk away machine. Its small footprint and brushless motor conveniently make it maintenance free. The 5415D has a maximum speed of 13,200 rpm and has a digital timer run time of up to 30 minutes. The Eppendorf 5415D has a maximum capacity of up to 24 x 1.5ml tubes (or 36 x 0.5ml). With its space-saving design and user-friendly operating concept, the centrifuge is ideal for everyday routine tasks.

The Eppendorf 5415C Centrifuge with F-45-18-11 Rotor micro centrifuge is a compact, quiet running centrifuge that reaches a maximum speed of 14,000rpm and RCF of 16,000g within ten seconds. Total spin time is controlled by built-in, 30-minute timer that automatically shuts off the unit. The 5415C centrifuge features microprocessor control of operating functions which permits operation for very short spin times. LED pilot light cycles on and off at 1 second intervals for counting. The Eppendorf also features a safety switch which prevents starting the centrifuge with lid open and safety lock which prevents opening of lid while centrifuge is in operation.

Refrigerated tabletop centrifuges are quite expensive. Although discontinued, a refurbished Eppendorf 5415R (the model we use) still sells for $1-2K. The second of our two Eppendorf 5415R broke already more than a year ago and since then, we have been either centrifuging in the cold room or using the neighboring lab's cold fudge. But having two broken centrifuges of the same type, but different failure symptoms begged to assemble one functioning out of the remains.

One of the centrifuge rotors was stuck (could not be turned even by hand) and the other fuge was giving sparks and smoke when starting a run. I had postponed this repair since I thought it might take much time. However, when I opened the first centrifuge, I immediately could identify the part that I needed to graft from the other fuge. The whole repair lasted less than one hour. There was a blown resistor next to the cooling fan, which was easily replaced with the part from the second fuge. You can see the broken brass-colored resistor (CGS HSA50 resistor, available from Amazon for $13) in the front of the picture left to the rotor.

The failure of both centrifuges was apparently caused by liquid getting into the inner workings of the fuge. The rotor of the second centrifuge could not turn anymore because it was corroded from the salt and water. Also, the resistor had apparently been soaked (it is located immediately below the cooling grill on the top back of the fuge).

The centrifuge works again including the cooling. I do not know for how long we will enjoy it, because it was already 2nd hand when we bought it in 2014. But even if it lasts only for another year, the repair was worth it.

This type of repair might become easier in the future because if I am not mistaken, the EU is planning to mandate that manufacturers make service and repair manuals available to third party repair shops (this mandate exists already for car manufacturers to ensure that independent car repair shops can survivce).

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