YK11-0016-DI-002-08
23
2.7 Automatic Operation
This pump has a certain operating pressure range. When starting it, therefore, it is necessary to
monitor the vacuum gauge.
In automatic operation, it is necessary to install a vacuum switch for pressure detection. When the
pressure on the intake side becomes lower than the maximum intake pressure, the vacuum switch
is actuated to start the mechanical booster pump. In the method
②
in Fig. 19, a pneumatically
controlled roughing valve is used which can be interlocked with a vacuum switch.
The vacuum switch is available in two types: mechanical and electrical. It is installed on the vacuum
chamber or near the intake port of the mechanical booster pump.
When the auxiliary pump is stopped, please as this pump is stopped.
CAUTION
When using the vacuum pump other than the standard backing
pump as the backing pump, since the maximum intake pressure
becomes different from the described value, be careful for it.
CAUTION
When the difference is not available in between the pressure in the
vacuum chamber and the pressure of inlet port of the mechanical
booster pump, it is okayed to mount the vacuum switch on the
vacuum chamber.
Summary of Contents for PMB100D
Page 2: ......
Page 3: ...Declaration of Conformity...
Page 39: ...YK11 0016 DI 002 08 12 2 4 Dimensional drawing Fig 11 Dimensional drawing PMB100D...
Page 40: ...YK11 0016 DI 002 08 13 Fig 12 Dimensional drawing PMB300D...
Page 41: ...YK11 0016 DI 002 08 14 Fig 13 Dimensional drawing PMB600D...
Page 42: ...YK11 0016 DI 002 08 15 Fig 14 Dimensional drawing PMB1200D...
Page 43: ...YK11 0016 DI 002 08 16 Fig 15 Dimensional drawing PMB2400D...
Page 62: ...YK11 0016 DI 002 08 35...
Page 65: ...YK11 0016 DI 002 08 38...
Page 72: ...YK11 0016 DI 002 08 45...
Page 84: ...YK11 0016 DI 002 08 57 Fig 28 PMB300D Optional attachment figure...
Page 85: ...YK11 0016 DI 002 08 58 Fig 29 PMB600D Optional attachment figure...
Page 86: ...YK11 0016 DI 002 08 59 Fig 30 PMB1200D Optional attachment figure...
Page 89: ...YK11 0016 DI 002 08 62 Fig 33 Dimensional drawing PMB2400D Horizontal exhaust model...
Page 99: ...YK11 0016 DI 002 08 72...
Page 105: ...YK11 0016 DI 002 08 78...
Page 119: ......
