Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
CAUTION
WARNING
1Introduction
1.1Scope and definitions
This manual provides installation, operation and maintenance instructions for the Edwards EXPT Pumping Station.
You must use the EXPT Pumping Station as specified in this manual.
Read this manual before you install and operate the EXPT Pumping Station. Important safety information is
highlighted as WARNING and CAUTION instructions; you must obey these instructions. The use of WARNINGS and
CAUTIONS is defined below.
Warnings are given where failure to observe the instruction could result in injury or death to
people.
Cautions are given where failure to observe the instruction could result in damage to the equipment, associated
equipment and process.
Introduction
A full list of Supplementary Publications is provided at the end of the Contents list of this manual. A number of these
Supplementary Publications will be supplied with your EXPT Pumping Station. The Supplementary Publications
supplied will be the instruction manuals for the components in your EXPT Pumping Station.
The Supplementary Publications you receive also contain WARNING and CAUTION instructions. When you install and
operate the EXPT Pumping Station, you must refer to these Supplementary Publications and obey all of the WARNING
and CAUTION instructions which they contain.
The units used throughout this manual conform to the SI international system of units of measurement.
The following IEC warning labels appear on the product and in the manual.
The EXPT Pumping Station is a fully automatic pumping system which is suitable for a wide range of applications. The
system is capable of utilising an extensive range of standard Edwards backing pumps, turbomolecular pumps and
controllers from a single compact unit. The open system configuration allows easy maintenance of the main pumping
components.
The function of the controller depends on your system configuration and will control the backing pump and
turbomolecular pump plus optional accessories. For systems with turbo and instrument controllers, up to three active
gauges may be used using the convenient gauge interface incorporated into the system housing. Both controllers are
provided with a large clear graphic display and easy-to-use control interface via a touch sensitive keypad. The system
incorporates an RS232/485 interface for control and data monitoring on a remote PC and a logic interface for
interface with associated system hardware.
Both systems are base mounted and come in two sizes. The EXP T1 base uses rob ust rubber feet as standard, castors
are optional. The EXPT2 base uses castors as standard to allow ease of transportation.
1.2.2General description of the EXPT pumping station major components
For the general description of the major components used on the EXPT Pumping Station, click on the appropriate
instruction manual reference against each product type.
The EXPT Pumping Station has a double-pole thermal circuit breaker which provides short circuit protection. The
backing pump and TIC Controller both have overload protection.
1.2.4Accessories
A wide range of standard accessories is available for the major components of the EXPT Pumping Station; refer to
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
2Technical data
Note:The operating, storage conditions and performance of the EXPT Pumping Station depends on the major
components fitted to the EXPT Pumping Station; refer to the technical data in the appropriate
supplementary publications.
2.1General
DimensionsRefer to Figure 2
MassRefer to Tables 1 and 2
Electrical dataRefer to Table 3
Degree of protection (to IEC34-5: 1981)IP20
Initial force required to push the EXPT pumping station*
(for systems with castors)
* Measured under ideal conditions and will increase on uneven floor surfaces, slopes etc.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Table 3 - Electrical data (continued)
B723-00-880 Issue B
Technical data
Backing pump
RV8/12
XDS5/10
Note:* If the EXPT Pumping Station uses a rotary vane pump, the system may draw up to the start current value
shown in Table 3. You must use a slow blow fuse to prevent unnecessary fuse failures, the start current
could typically last for several seconds and generally occurs when the rotary vane pump oil is cold.
TIC
controller
100W
200W
100W
200W
Supply voltage
50/60Hz
10010.3536.44
220-2405.2719.27
10011.745.6
220-2405.7719.77
10010.75
220-2404.87
10012.1
220-2405.37
Full loadStart *
Current (A)
Maximum power
kW
0.825110-12010.2422.375
0.96110-12011.3437.54
0.575110-1209.64
0.71110-12010.74
2.3Legislation and standards
The legislation and standards with which the EXPT Pumping Station complies are listed in full on the Declaration of
Conformity shown on the front inside cover of this manual.
2.4Operating and storage data
Table 4 - Operating and storage data
General itemsReference data
Ambient operating temperature range0 °C to 35 °C
Ambient storage temperature range-30 °C to 70 °C
Maximum ambient operating humidityMax 90% RH non cond at 40 °C
Maximum operating altitude3000 m max.
2.5Fuse ratings
Table 5 - Fuse ratings
General itemsReference data
BX bakeout band fuse (Heater)
90 to 132 V a.c. electrical supply1 A, type F 20 mm
180 to 264 V a.c. electrical supply0.5 A, type F 20 mm
Backing pump
Refer to backing pump documentation10 A, type T 20 mm (maximum)
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
WARNING
3Installation
3.1Safety
Obey the safety instructions given below and take note of appropriate precautions. If you do not,
you can cause injury to people and damage to equipment.
z When you refer to a manual supplied as a Supplementary Publication, you must obey all of the W ARNING and
CAUTION instructions in the manual.
z A suitably trained and supervised technician must install the EXPT Pumping Station.
z Check that all the required parts are available and of the correct type before you start work.
z Ensure that the installation technician is familiar with the safety procedures which relate to the products
pumped. Wear the appropriate safety-clothing when you come into contact with contaminated components.
z Isolate the other components in your system from the electrical supply so that they cannot be operated
accidentally.
Installation
z Do not reuse ‘O’ rings and Co-Seals if they are damaged.
z Dispose of components, grease and oil safely (refer to Section 6).
z Take care to protect sealing-faces from damage.
z Leak-test the system after installation and seal any leaks found.
3.2Unpack and inspect
Remove the outer cover and all packing materials, remove the protective covers from the inlet and outlet ports,
inspect the system for any damage. If the EXPT Pumping Station is damaged, notify your supplier and the carrier in
writing within three days; state your order number and invoice number. Retain all packing materials for inspection.
Do not use the EXPT Pumping Station if it is damaged. Check that your package contains the items listed in Table 9.
If any item is missing, notify your supplier within three days.
If the EXPT Pumping Station is not to be used immediately, replace the protective covers. Store the EXPT Pumping
Station in suitable conditions as described in Section 6.1.
Table 9 - Checklist of components
QtyDescriptionCheck (✓)
1EXPT Pumping Station
1Instruction Manual Package
1Logic Interface Interlock D-Connector
1TMP Flange Inlet Seal
1Rotary Pump Oil (RV/E2M pumps only)
1XDS Silencer (optional on systems with XDS pumps)
Heavy objects can cause muscle strain or back injury. It is advisable to use suitable lifting
equipment when moving the EXPT Pumping Station.
(Applicable for systems with base castors) For your safety, both front castors must be locked when
the system is in operation. If you do not and the turbomolecular pump seizes, movement of the
system may damage equipment and injure people.
When lifting the EXPT Pumping Station, do not attempt to support the mass of the system from the backing
pump.
When lifting the EXPT Pumping Station, always use slings with sufficient length to prevent damage of the system
components.
Before attempting to lift the EXPT Pumping Station, move the system (on its pallet) close to the operating position.
Ensure that you provide a firm level base before removing the system from its pallet. It is advisable to always use
mechanical lifting equipment when moving the heavier EXPT2 systems. Use slings around the base of the system from
front to back, make sure each sling is routed between the castors or feet and the base guides to prevent slippage.
Alternatively use straps with lifting hooks. Refer to Figure 3 which shows where to locate the slings or lifting hooks.
When locating the EXPT Pumping Station, care should be taken not to restrict the ventilation grid located under
the base of the system. Failing to observe this may result in over heating of the controller and the
turbomolecular pump.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Figure 3 - Position the lifting slings/lifting hooks
B723-00-880 Issue B
Installation
3.4Fill the rotary pump with oil
If the EXPT Pumping Station uses a EM or RV series rotary or rotary vane pump you must fill it w ith the correct quantity
of oil (supplied with the equipment) before you operate the equipment, as described in the pump Instruction Manual.
3.5XDS scroll pump silencer
The silencer is used to reduce exhaust noise during pump down and gas ballast operations. This part may be ordered
and supplied (not fitted) with the system or can be ordered as an optional extra. To fit the silencer, follow the
instructions in manual A505-97-880.
3.6Fit accessories (optional)
If you wish to fit accessories to the EXPT Pu mping Station, fit them now, before you start to install the EXPT Pum ping
Station into your vacuum system. Install accessories as described in the instruction manuals supplied with the
accessories. Refer to Section 7 for further information on the accessories available and for specific fitting instructions
to fit the accessories to the EXPT Pumping Station.
Note:The use of water coolers and BX bake-out bands on the EXPT Pumping Station is not permitted. If you wish
to fit these accessories, it is advisable to install the turbomolecular pump away from the EXPT Pumping
Station. For further details regarding turbomolecular pump remote mounting please contact Edwards UK.
3.7Connect the EXPT pumping station to your vacuum system
If you install your vacuum system directly onto the EXPT Pumping Station, the centre of gravity of
the mass must be above and within 300 mm of the centre line.
Note:If the vacuum system is to be supported by the EXPT Pumping Station, the mass of the vacuum system must
not be greater than the maximum mass which can be supported by the turbomolecular pump (refer to the
EXT Pump Instruction Manual). Use the co-seal or copper gasket (supplied with the equipment) with a
suitable clamp to secure to the vacuum system. Alternatively you may wish t o use a pipeline to connect the
vacuum system to the inlet of the turbomolecular pump. Refer to the EXT Pump Instruction Manual for
further details.
3.8Connect to your exhaust extraction system
Note:For further information, refer to the instruction manual which corresponds to the backing pump fitted to
your EXPT Pumping Station.
3.9Connect the electrical supply
Ensure that the electrical installation of the EXPT Pumping Station conforms with your local and
national safety requirements. It must be connected to a suitably fused and protected electrical
supply and a suitable earth point.
Ensure the mains cord is routed so as not to cause a trip hazard.
Check that your electrical supply is suitable for this equipment. Refer to Table 3 for the electrical requirements for
this equipment. The EXPT Pumping Station is supplied with an electrical cable which includes a moulded
IEC connector fitted at one end, the other end of the cable will be fitted with a moulded plug suitable for connection
to the local electrical supply.
3.10Additional earth bonding
The electrical supply cable normally provides protective earthing for electrical safety. If this is not the case, or if
additional earth bonding is required, the earth stud located on the base at the rear of the EXPT Pumping Station
should be connected to your vacuum system.
3.11Configure the EXPT pumping station
As supplied, the TIC Controller has been reconfigured for the TIC Pumping Station to suit most vacuum applications
and will:
When the TIC System ON is selected:
z Switch on both the backing pump and the turbomolecular pump *.
z Close the TAV vent valve.
z Open the backing valve.
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
When the TIC System OFF is selected:
z Switch off both the backing pump and the turbomolecular pump.
z Close the backing valve.
EXDC pump controllers:
z Open the TAV vent valve fully after the turbomolecular pump has slowed to 50% of its rotational speed.
DX pump controllers:
z Open the T AV vent valve (controlled venting) from 100–50% rotational speed, and then open fully from 50% of
full rotational speed.
Note:The TAV vent valve and LCPVEK backing valve are optional extras.
Note:The TIC Controller factory settings have been changed to provide a standard operation for the EXPT
Pumping Station, if you replace the TIC Controller you should reconfigure the set up options to suit your
application, refer to the TIC instruction manual for further details.
Note:* If your EXPT Pumping Station uses an XDD1 diaphragm pump, the turbomolecular pump drive will be
delayed for two minutes while the backing pump reduces the pressure to a suitable level, this is typical for
a five litre volume and will prevent the turbomolecular pump from running under high pressure for a
prolonged period. This delay is adjustable (refer to the TIC instruction manual) and is recommended for
system volumes >2 litres, refer to Figure 4 to estimate the turbomolecular start delay if you know your
system volume.
Do not operate the system with the exhaust pipeline blocked. For example, if your EXPT Pumping
Station uses a rotary vane pump, oil mist may be discharged from the oil mist filter and cause injury
to people.
After you have installed the EXPT Pumping Station, use the following procedure to test the system.
1. Make sure that all the electrical connections are secure.
2. Switch on the electrical supply and your exhaust-extraction system (if available).
3. Turn ON the EXPT Pumping Station using the ON/OFF switch positioned on the rear panel. To start-up the
equipment, refer to the TIC instruction manual. Check that the equipment operates as described in
Section 3.11.
4. Inspect the vacuum, exhaust and pipeline connections and check that there are no leaks. Sea l if any leaks are
found.
5. Wait until the turbomolecular pump has reached full speed, then select OFF on the front panel of the TIC
Controller again; check that both pumps stop.
3.13Connecting an active gauge
Do not connect Barocel capacitance manometers to the TIC Pumping Station gauge connectors. Doing so will
result in damage to the gauge and will invalidate the warranty.
Up to three compatible active gauges can be fitted to the gauge connectors on the rear inside of the EXPT Pumping
Station housing, refer to Figure 1. Connect the gauges using Edwards active gauge cables to each of the three sockets,
the number indicated above each socket corresponds to the same gauge number shown on the TIC Controller display.
This option is only available if the EXPT Pumping Station uses a TIC turbo and instrument controller.
Note:Only one AIGX gauge can be connected to the TIC Pumping Station gauge connectors at a time.
3.14Connecting the logic interface
Do not earth the logic interface 0 V lines (pins 7, 10, 12, and 13). If you do, you will provide an earth return
path for any electrical fault in the pump-motor and this could damage your Controller or your control
equipment.
Do not connect voltages greater than 24 V to the logic interface.
The logic interface provides a number of signals that can be used for monitoring the status of your vacuum system,
and for controlling certain aspects of its operation. These signals can be broadly divided into three groups, control
inputs, control outputs and status outputs.
The EXPT Pumping Station is supplied with an interlock D-connector connected into the logic interface a t the rear of
the equipment. If you do not intend to connect the logic interface to your system you must use the interlock
D-connector, failing to do so will disable a number of control outputs which operate the EXPT system.
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
Note:The user logic interface on the rear panel offers the same functionality as the logic interface on the TIC
Controller. Refer to the TIC instruction manual for further details of this connector.
3.15Connecting the serial interface
The TIC has two serial communications protocols built in, RS232 and RS485. RS232 is the simple st interface and can
be used to allow a host PC to control the TIC. RS485 allows a host PC to control a small network of TICs.
Note:The user serial interface on the rear panel offers the same functionality as the serial interface on the TIC
Controller. Refer to the TIC instruction manual for further details of this connector.
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
4Operation
4.1Use of the backing pump controls
If the backing pump has a mode selector and or ga s-ballast control, refer to the ap propriate backing pump instruction
manual to optimise the performance of the pump for your application.
4.2Start-up
Use the following procedure to start the EXPT Pumping Station. If you wish to reconfigure the operation of the EXPT
Pumping Station to suit an application, refer to the TIC instruction manual.
1. Switch on the electrical supply to the EXPT Pumping Station and your exhaust-extraction system (if available).
2. Turn ON the EXPT Pumping Station using the ON/OFF switch positioned on the rear panel.
3. To operate the equipment components, refer to the TIC instruction manual for full operation.
4.3Shut-down
Operation
Use the following procedure to shut down the EXPT Pumping Station.
1. Refer to the TIC Controller instruction manual to stop the turbomolecular pump (TMP) and backing pump
operation.
2. Switch off the ON/OFF rocker switch located on the equipment rear panel.
3. Remove the electrical mains supply from the equipment.
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
WARNING
5Maintenance
5.1Safety
Obey the safety instructions given below and take note of appropriate precautions. If you do not,
you can cause injury to people and damage to equipment.
z When you refer to a manual supplied as a Supplementary Publication, you must obey all of the W ARNING and
CAUTION instructions in the manual.
z A suitably trained and supervised technician must maintain the EXPT Pumping Station.
z Allow the pumps to cool to a safe temperature before you start maintenance work.
z Check that all the required parts are available and of the correct type before you start work.
z Ensure that the maintenance technician is familiar with the safety procedures which relate to the products
pumped. Wear the appropriate safety-clothing when you come into contact with contaminated components.
Dismantle and clean contaminated components in a fume-cupboard.
Maintenance
z Isolate the EXPT Pumping Station and other components in the system from the electrical supp ly so that they
cannot be operated accidentally.
z Do not reuse ‘O’ rings and Co-Seals if they are damaged.
z Dispose of components, grease and oil safely (refer to Section 6).
z Protect sealing -faces from damage.
z Do not touch or inhale the thermal breakdown products of fluoroelastomer seals. These breakdown products
are very dangerous and may be present if the EXPT Pumping Station has been heated to 260 °C and above.
z Leak-test the system after maintenance and seal any leaks found if you have discon nected any vacuum or
exhaust pipeline connections.
5.2Maintenance plan
The following documents list the minimum maintenance operations necessary to maintain the EXPT Pumping Station
in normal use.
More frequent maintenance may be necessary if the EXPT Pumping Station has been used to pump corrosive or
abrasive gases and vapours. If necessary, adjust the maintenance plan according to your experience.
EXT pumps
Turbomolecular pumpsEXT70H / EXT255H 24 V (B722-20-880)
1. If the turbomolecular pump on your EXPT Pumping Station is water-cooled:
z Inspect all of the cooling-water connections and check that they are secure. Tighten any loose connections.
z Inspect all cooling-water hoses, pipelines and connections and check that they are not corroded or damaged
and that they do not leak. Replace or repair any corroded or damaged component and seal any leaks found.
2. Inspect all of the electrical connections and check that they are secure. Tighten any loose connections.
3. Inspect all of the electrical cables and check that they are not damaged and have not overheated. Replace or
repair any damaged or overheated cable.
4. Inspect all of the vacuum and exhaust connections and check that they are secure. Tighten any loose
connections.
5. Inspect all of the vacuum and exhaust pipelines and check that they are not corroded or damaged and that they
do not leak. Replace or repair any corroded or damaged component and seal any leaks found.
5.4Trouble-shooting
For trouble-shooting instructions on the EXPT Pumping Station, refer to the following documents:
EXT pumps
Turbomolecular pumpsEXT70H / EXT255H 24 V (B722-20-880)
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
6Storage and disposal
Note:We recommend that you avoid long-term storage of the EXPT Pumping Station. If you will store the EXPT
Pumping Station for several months, refer to the storage instructions in the relevant instruction manual.
6.1Storage
Use the following procedure to store the EXPT Pumping Station:
1. Shut down the EXPT Pumping Station as described in Section 4.3.
2. Isolate the EXPT Pumping Station from the electrical supply and disconnect it from the vacuum system.
3. Drain the oil from the backing pump (rotary vane pumps only) as described in the instruction manual for the
pump. Refer to the following documents:
Rotary vane pumpsE2M0.7 / E2M1.5 (A371-22-880)
RV3 / RV5 / RV8 / RV12 (A652-01-880)
4. Place protective covers over the inlet and outlet-flanges.
5. For the fastest pump-down after the EXPT Pumping Station is re-installed, seal the turbomolecular pump inside
a plastic bag together with a suitable desiccant.
Storage and disposal
6. Store the EXPT Pumping Station in cool, dry conditions until required for use.
6.2Disposal
Dispose of the EXPT Pumping Station and any components safely in accordance with all local and national safety and
environmental requirements.
Particular care must be taken with components which have been contaminated with dangerous process substances.
Edwards and the Edwards logo are trademarks of Edwards Limited.
B723-00-880 Issue B
7Spares and accessories
7.1Introduction
Edwards products, spares and accessories are available from Edwards compani es in Belgium, Brazil, Canada, France,
Germany, Hong Kong, Italy, Japan, Korea, Switzerland, United Kingdom, U.S.A and a worldwide network of
distributors. The majority of these centres employ Service Engineers who have undergone comprehensive Edwards
training courses.
Order spare parts and accessories from your nearest Edwards company or distributor. When you order, state for each
part required:
z Model and Item Number of your equipment
z Serial number (if any)
z Item Number and description of the part.
Fit accessories as described in the Supplementary Publications and in the instruction manual supplied with the
accessory.
Spares and accessories
7.2Spares
The spares available for use with the EXPT Pumping Station (including replacement component parts) are listed in
the instruction manuals supplied as Supplementary Publications.
7.3Accessories
For accessories on the EXPT Pumping Station, refer to the following documents:
EXT pumps
Turbomolecular pumpsEXT70H / EXT255H 24 V (B722-20-880)
The BX bakeout band should only be used on turbomolecular pumps intended to be used remotely away from the
EXPT Pumping Station. For further details please contact Edwards UK.