Eppendorf Concentrator plus - Manual (Page 20)

4 Installation
22
Concentrator plus / Vacufuge® plus — Operating manual
4.3.4 Basic device: Connecting vacuum system
The basic device can be connected to a single-phase vacuum pump, a three-phase vacuum
pump or a central vacuum system.
General requirements
• Pump can withstand an ultimate pressure of 20 mbar.
• Pump is switched on.
• A separator (e.g., emission condenser, cold trap or chemical trap) between the devices or
behind the vacuum system, depending on the application.
4.3.5 Connecting single-phase vacuum pump
Requirement
• Power consumption of the vacuum pump: 350 W max.
• Special plug for the control and power supply of the vacuum pump (see Accessories on
page 40).
• 1 connecting hose (length: max. 50 cm, inner diameter: 8 mm, chemical resistant and suitable
for vacuum applications).
Connect vacuum pump to the basic device using the special plug and the connecting hose.
4.3.6 Connecting three-phase vacuum pump or central vacuum system
Requirement
• Solenoid valve for the control of the vacuum system via the device (see Accessories on
page 40).
• 2 connecting hoses (length: 50 cm max., inner diameter: 8 mm, chemical resistant and
suitable for vacuum applications)
1. Connect the solenoid valve to the device and the vacuum system using a connecting hose for
each.
2. Connect the solenoid valve to the basic device for the power supply.
3. Connect vacuum pump directly to the power supply.
CAUTION!
Caution! Note solvent properties.
When running several devices in parallel on a vacuum system and/or in combination with a gel
dryer, an explosive gas mixture can develop in the vacuum system.
Only carry out this parallel operation with identical solvents or solvents which evaporate in a
non-hazardous manner.
Hint!
The vacuum system is isolated from the device automatically before concentration is complete by
closing the solenoid valve which is piloted by the concentrator. The isolation can also be carried
out without a solenoid valve by closing an in-line valve manually (e.g., stop valve with a ground-in
stopper).
Hint!
If you experience any problems during the connection of the vacuum system, please connect
Technical Service. You can find the contact addresses at the end of the operating manual or on
the Internet under www.eppendorf.com.
EN
Oper
at
ing man
ual