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Introduction
A746-02-885 Issue A
Manual reset is necessary. Switch off the pump or isolate the equipment from mains. Wait approx. five minutes
before restarting the pump.
Due to the residual leak rate of the equipment, there may be an exchange of gas, albeit extremely slight, between
the environment and the vacuum system.
z
Adopt suitable measures to prevent contamination of the pumped substances or the environment.
Ensure that in case of failure, the pump and the vacuum system turn always into a safe status.
z
In case of leaks in the manifold pumped substances may leak into the environment or in the pump housing or
the motor.
z
Obey especially all notes on use and operation and on maintenance.
z
Failure of the pump (e. g. due to power failure) must not lead to a critical dangerous situation under any
circumstances.
Use only genuine spare parts and accessories.
z
Otherwise safety and performance of the equipment as well as the electromagnetic compatibility of the
equipment might be reduced.
WARNING
Pumps with dual-voltage motor: The motor is shut down by a thermal cutout in the winding.
WARNING
Pumps with 24 V DC voltage: The motor is protected by a temperature sensor at the circuit board
(current limitation if the temperature at the circuit board is higher than 70°C).
Avoid high heat supply (e. g. due to hot process gases).
Ensure sufficient air admittance if pump is installed in a housing.
