Installation; Safety; Startup; Electrical Connections - Agilent Technologies SH-112 Bedienungshandbuch

Installation

Safety

Do not remove or modify any safety or insulating equip-
ment from the pump. To do so may create a serious safety
hazard and may void the warranty.
This pump is capable of pumping air
WARNING
and inert gases only. It is not designed
to pump explosive, flammable, corro-
sive or particulate forming gases. They
can cause bodily injury, explosion, or
fire.
Install in an area that is not exposed
to rain, steam, or excessive humidity.
They can cause electric shock, short
circuits, and severe bodily injury.
Before reconfiguring the pump
voltage, or inspecting or servicing the
pump, be sure the electrical supply is
disconnected.
The gas ballast must be sealed when-
ever pumping any gas not intended to
be vented to the atmosphere.
Although the pump can pump trace
CAUTION
particulates normally found in the
atmosphere, it is not designed to
process solids, chemicals, powders,
solvents, condensates, or other particu-
lates. They can damage the equipment,
degrade its performance, or shorten its
useful life.

Startup

1. Check that the inlet screen is installed before begin-
ning operation.
Do not insert a finger or any foreign
WARNING
object in the path of the fan; serious
personal injury may result or the pump
may be damaged.
2. Operate the pump at an ambient temperature of 5 °C
to 40 °C (41 °F to 104 °F), otherwise damage to the
pump or shortened operating life may result.
18
SH-112 Dry Scroll Vacuum Pump
Do not block the fan ducts. Blocking
CAUTION
these ducts can cause pump overheat-
ing. A pump surface temperature in
excess of 65 ° C (150 ° F) is potentially
damaging. If such conditions are
observed, turn the pump off and allow it
to cool. Disassemble, inspect for dam-
age, and repair, if necessary.

Electrical Connections

The pump can be configured for low voltage, 100 VAC to
115 VAC, or for high voltage, 200 VAC to 230 VAC.
The pump as delivered from the factory is configured for
low voltage. To change the pump voltage follow this pro-
cedure:
Risk of electric shock. Disconnect the
WARNING
pump from electrical power mains
before attempting to change the voltage
configuration.
1. Verify your electrical supply voltage.
2. Use a small flat blade screwdriver to release the fuse
holder from the power entry module.
3. Carefully pop out the white plastic assembly and
reinsert with the desired operating voltage showing
outward.
4. Reinsert the fuse holder into the power entry module.