Agilent Technologies TriScroll 620 Series, Installation And Operation Manual

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TriScroll 620 Series Vacuum Pump 

8

Installation Requirements

Do not install or use the pump in an environment
exposed to atmospheric agents (rain, snow, ice), dust,
aggressive gases, or in explosive environments or those
with a high fire risk. 

During operation, the following environmental
conditions must be respected:

Operation

In order to reach ultimate vacuum, the pump must be left
running for about an hour with the inlet sealed.

Unlike conventional oil-sealed pumps, Agilent’s dry scroll
pumps do not have fluid to cleanse them of accumulated
dust and debris. Run the pump periodically at atmosphere
for a minute or two to flush out the pump. Flush the pump
regularly and adjust this schedule according to your
specific conditions.

Start up Procedure

1. Be sure that the vacuum system isolation valve is 

closed.

2. Turn on power to the pump.

3. Open the isolation valve.

Shutdown Procedure

1. Close the vacuum system isolation valve. This 

prevents debris in pump from being transported into 
the vacuum system.

2. Turn off power to the pump.

Maintenance

Personnel responsible for pump operation and
maintenance must be well-trained and aware of the
accident prevention rules.

If a pump is to be discarded, it must be disposed of in
accordance with specific national and local standards.

Temperature:

+5 °C to +40 °C (41 °F to 104 °F)

Relative humidity:

0 to 95% (non-condensing)

CAUTION

As supplied from the factory, the pump 
is configured for low voltage. Verify that 
the configuration matches the supply 
voltage. 

If voltage changeover is required, 
configure the voltage as described in 
“Electrical Connections”  on page 13.

WARNING

During operation the outer surface of 
the motor housing can become hot. 
Avoid touching the motor housing 
during pump operation.

WARNING

The pump is designed for operation 
with neutral or noncorrosive fluids. It 
is absolutely forbidden to use it with 
potentially explosive, inflammable or 
poisonous substances.

WARNING

❑

Death may result from contact with 

high voltages. Always take extreme care 
and observe the accident prevention 
regulations in force.

❑

When the machine is powered up, 

be careful of moving parts and high 
voltages. 

❑

If you have to perform maintenance 

on the pump after a considerable time 
in operation, allow the pump to cool as 
the temperature of the outer surface 
may be in excess of 55 °C (131 °F).

❑

Always disconnect your power 

supply to the pump before beginning 
maintenance work.

NOTE

Before returning the pump to the factory 
for repair, the “Health and Safety” sheet 
attached to this instruction manual must 
be completed and sent to the local sales 
office. A copy of the sheet must be 
inserted in the pump package before 
shipping.