OXFORD CRYOSYSTEMS PheniX Administrator Guide

OXFORD CRYOSYSTEMS
PheniX
Operation &
Instruction Guide

O X F O R D C R Y O S Y S T E M S P H E N I X
Operation & Instruction Guide v2.6
Oxford Cr os stems Ltd
3 Blenheim Office Park
Lower Road
Long Hanborough
Oxford OX29 8LN
United Kingdom
Phone [phone] • Fax [phone]
Email Support@oxcr o.com
© 2012 Oxford Cr os stems Ltd.
All Rights Reserved.

Table of Contents
1 Introduction ............................................................................................................... 4
1.1. How the PheniX works .................................................................................................................................................... 4
1.2. Items required for assembling our PheniX ................................................................................................................. 5
2 Setting Up .................................................................................................................. 6
2.1. Matching the PheniX Coldhead and 730 Series Controller ........................................................................................ 6
2.2. Operating voltage ............................................................................................................................................................... 6
2.3. Electrical suppl connection for Cr odrive ................................................................................................................... 6
2.4. La out of Cr odrive ........................................................................................................................................................... 9
2.5. Helium gas hose connection ............................................................................................................................................ 9
2.6. Vacuum S stem ................................................................................................................................................................ 14
2.7. Releasing vacuum into the PheniX ............................................................................................................................... 19
2.8. Checklist to start the PheniX running .......................................................................................................................... 20
2.9. Adjusting the height of the PheniX sample stage ...................................................................................................... 20
2.10. How to shut down the PheniX...................................................................................................................................... 20
PheniX 7 0 Series Controller .................................................................................. 21
3.1. PheniX controller front panel ........................................................................................................................................ 21
3.2. Displa modes .................................................................................................................................................................. 22
4 Programming the PheniX ........................................................................................ 26
4.1. Using the quick start facilit and the COOL function .............................................................................................. 26
4.2. Further programming of the PheniX Controller ........................................................................................................ 26
4.3. Phase table ......................................................................................................................................................................... 29
4.4. Cr odrive speed and the SPEED button .................................................................................................................... 29
4.5. HOLD and ‘Un-HOLD’ ................................................................................................................................................ 29
4.6. Alarm conditions .............................................................................................................................................................. 30
4.7. Safet features during power failures ............................................................................................................................ 30
4.8. PheniX shut downs .......................................................................................................................................................... 31
5 Running the PheniX with Cryopad .......................................................................... 2
5.1. Installing Cr opad ............................................................................................................................................................ 32
5.2. Using Cr opad to run the PheniX ................................................................................................................................ 32
6 PheniX User Maintenance ....................................................................................... 5
6.1. Coldhead swap-out .......................................................................................................................................................... 35
6.2. Servicing the Turbomolecular Vacuum Pumping Station ........................................................................................ 35
6.3. Replacing the Cr odrive Adsorber ................................................................................................................................ 36
6.4. Topping up the Cr odrive with helium ........................................................................................................................ 37
7 Liquid and gaseous nitrogen safety sheet .............................................................. 8
7.1. General ............................................................................................................................................................................... 38
7.2. Fire and explosion hazards ............................................................................................................................................. 38
7.3. Health hazards .................................................................................................................................................................. 38
7.4. Precautions ........................................................................................................................................................................ 39
7.5. First aid .............................................................................................................................................................................. 40
8 Technical Support ................................................................................................... 42

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8.1. Returns procedure ............................................................................................................................................................ 42
Oxford Cryosystems - Warranty Certificate ................................................................. 4
Registration ..................................................................................................................................................................................... 43

Copyright 2012 Oxford Cryosystems Ltd
FiguresFigure 1 – PheniX la out .................................................................................................................................. 4
Figure 2 – Transformer showing different electrical suppl connections ...................................................................... 7
Figure 3 – Overload rela showing stop and reset buttons .............................................................................................. 8
Figure 4 – Front and back of Cr odrive .............................................................................................................................. 9
Figure 5 – Helium gas hoses ................................................................................................................................................10
Figure 6 – Connection of a helium hose to the Cr odrive using two spanners ..........................................................11
Figure 7 – Front of Cr odrive showing the pressure gauge ...........................................................................................12
Figure 8 – Cooling water requirements ..............................................................................................................................13
Figure 9 – Cooling water flow rate vs pressure drop .......................................................................................................13
Figure 10 – PheniX Vacuum Pump Station ......................................................................................................................14
Figure 11 – Ballast valve in the closed position. ...............................................................................................................16
Figure 12 – Turbo station displa unit ...............................................................................................................................17
Figure 13 – Venting the vacuum from the PheniX ..........................................................................................................19
Figure 14 – Front of a Controller ........................................................................................................................................21
Figure 15 – Cr opad Settings page and Search dialog .....................................................................................................32
Figure 16 – Cr opad Displa page ......................................................................................................................................33
Figure 17 – Cr opad Command page .................................................................................................................................34
Figure 18 – Cr opad Data Logging page ...........................................................................................................................34
Tables
Table 1 – Wire connections to primar tap connections .................................................................................................. 8
Table 2 – Recommended protection switch current limit setting ................................................................................... 8
Table 3 – Options on the turbomolecular pumping station ...........................................................................................18
Table 4 - PheniX Service Intervals ......................................................................................................................................35

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1Introduction
The PheniX cr ostat is designed for the cooling of flat plate powder samples down to temperatures of
around 12 K. The PheniX is designed to fit to vertical powder diffractometers and be used in both the
theta - theta and theta - 2 theta modes. This is made possible b a uniquel designed rotating seal
between the integrated Gifford-McMahon Cr ocooler and the sample stage. This allows the sample
stage to move in the full 2-theta range of the detector without the high pressure hoses and cables
becoming tangled up or interfering with other services in the enclosure.
The compact design means the PheniX can be easil fitted to the goniometer from the front with a
specific adapter plate designed for each t pe of goniometer.
1.1. How the PheniX works
The gas flow circuit of the PheniX is shown in Figure 1 below.
Helium compressor
Turbomolecular
vacuum pump
Controller
Power
Power
Cable
Coldhead cable
Power
Cooling water in
Cooling water out
PheniX
Coldhead
SEAL VAC
(NW10)
CRY VAC
(NW16)
High pressure
helium hose
Low pressure
helium hose
Vacuum hoses
Cable
Figure 1 – PheniX layout
The closed c cle cooler is mounted within the bod of the PheniX and operates using
compressed helium gas provided b the Cr odrive compressor, which is water-cooled. It is
important to note that there is no helium gas consumption in this s stem and the helium gas
circuit in the Cr odrive/Coldhead combination is sealed. The sample stage is cooled b the
conduction of heat between the sample stage and the cold stages of the Coldhead.

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A Vacuum S stem is used to continuousl pump the vacuum space around the PheniX internals
and also the Rotating Seal to minimise unwanted heat leaks into the s stem. It is important that a
good vacuum (<10-4 mbar) is maintained with the Coldhead otherwise achieving extremel low
temperatures at the sample becomes impossible.
The PheniX can cool the sample stage to temperatures as low as 12 K and as high as 310 K with
a stabilit of better than 0.1 K.
1.2. Items required for assembling your PheniX
The component parts of the s stem are:
The PheniX Coldhead
730 Series Controller
Gre Cr odrive cable
Black Coldhead cable
Cr odrive compressor
2x Stainless steel flexible transfer lines
Pfeiffer Turbomolecular Vacuum Pump
CD with Operating Manuals and Cr opad software
PheniX Mounting Plate for Goniometer

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2Setting Up
2.1. Matching the PheniX Coldhead and 7 0 Series Controller
The PheniX Coldhead and 730 Series Controller are supplied as a matched pair. The individual
characteristics of the Coldhead sensors are programmed into the Controller. Please contact our
supplier if ou believe ou ma have unmatched units.
2.2. Operating voltage
It is essential that the PheniX is configured to operate on the local mains electrical suppl .
Item O erating voltage requirements
730 Series Controller The voltage selector switch on the rear panel must be set to the
correct position:
200-240 Volts AC, 50 Hz, 3 Amps
100-120 Volts AC, 50-60 Hz, 6 Amps.
Make sure an ‘Anti-Surge’ (T) t pe fuse of the correct rating is fitted.
Cr odrive User configurable Suppl voltage:
200, 220 or 240 V at 50 Hz or
200, 208 or 220 V at 60 Hz
Suppl voltage tolerance: +10 %
Maximum suppl fuse rating: 30 A
Recommended Cr oController fuse t pe: Slow blow
Maximum Cr oController fuse rating: 5 A
Over voltage categor (IEC664): 2
Pfeiffer Turbomolecular
Vacuum Pump 90-132 V 50/60 Hz and 185-265 V 50/60 Hz.
This pump unit will automaticall run on the correct voltage.
Oxford Cryosystems shi s all Cryodrives set to 240 V and 50 Hz as this is how they are
commissioned in the UK. It will be necessary to refer to Section 2.3 to set the Primary Ta
Connections for the local voltage and frequency.
2. . Electrical supply connection for Cryodrive
We recommend that ou use a suitabl fused isolator at our electrical suppl outlet. Locate the
isolator switch close to the electrical outlet. It is also recommended that back-up fuses are installed at
the electrical suppl outlet. You must configure the Cr odrive to suit our electrical suppl . The
Cr odrive is despatched configured for use with 240 V and 50 Hz electrical suppl .

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Figure 2 – Transformer showing different electrical su ly connections
Use the procedure below to change this configuration.
•Look at Table 1: find our electrical suppl in the left-hand column, look along this row to
find the connections ou must make for the wire 30 (W30) and wire 31 (W31).
•Remove the lid of the Cr odrive and locate the transformer.
•With reference to Figure 2, change the position of wire 30 (W30) and wire 31 (W31) so that
the are in the correct position for our electrical suppl . Ensure the connections are full
tightened. Do not move the wires attached to the red 0 V and 230 V connectors, as
these rovide ower to the secondary ste er motor transformer and are not art of
the rocedure.
•Locate the protection switch on the current-limit potentiometer which is situated in the
Cr oController, refer to Figure 3. The switch can be accessed b removing the lid of the
Cr oController unit.
•Look at Table 2: find our Cr odrive t pe and electrical suppl frequenc in the left-hand
column, look along this row to find the recommended limit for the protection switch current.
•Use a small screwdriver to adjust the current-limit potentiometer to the recommended value.
•Replace the lid of Cr oController and the Cr odrive.
•Make sure that the Cr odrive ON/OFF switch is in the OFF position and connect the
Cr odrive to our electrical suppl .

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Electrical Su ly
Primary Ta Connection
N 200 V 208 V 220 V 230 V 240 V
50 Hz, 200 V W32 W31 W30 - - -
50 Hz, 220 V W32 - W30 W31 - -
50 Hz, 240 V W32 - W30 - - W31
60 Hz, 200 V W32 W31 - - W30 -
60 Hz, 208 V W32 - W31 - W30 -
60 Hz, 220 V W32 - - W31 W30 -
60 Hz, 240 V W32 W30 W31
Table 1 – Wire connections to rimary ta connections
Cryodrive model Electrical su ly voltage
200 V 208 V 220 V 240 V
Cr odrive 1.5, 50 Hz suppl 11 A - 10 A 10 A
Cr odrive 1.5, 60 Hz suppl 11 A 11 A 11 A -
Cr odrive 3.0, 50 Hz suppl 16 A - 16 A 16 A
Cr odrive 3.0, 60 Hz suppl 18 A 17 A 16 A -
Table 2 – Recommended rotection switch current limit setting
Figure 3 – Overload relay showing sto and reset buttons

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2.4. Layout of Cryodrive
Figure 4 shows the la out of the Cr odrive.
Figure 4 – Front and back of Cryodrive
1. Pressure gauge
2. Mains suppl in
3. Charge and vent port
4. ON/OFF (reset) switch
5. High temperature LED
6. Low pressure LED
7. Cr odrive ON LED
8. Elapsed hour counter
9. Serial cable connections
10. Coldhead 1 connection
11. Coldhead 2 connection
12. Cooling water outlet
13. Cooling water inlet
14. Helium return
15. Helium suppl
2.5. Helium gas hose connection
WARNING
If ou are unsure on how to connect the helium gas hoses, please contact Oxford Cr os stems.
Failure to connect the hoses properl might result in complete loss of helium pressure within the
Cr odrive.
The main la out is illustrated schematicall on the diagram in Figure 1 and connections are generall
labelled equivalentl at each end. Start with the two high-pressure hoses between the PheniX Cooler
and the Cr odrive compressor module. The ends are colour coded to avoid confusion: the helium
return line has a GREEN band; helium suppl line has a RED band, see Figure 5.
15
14
13
12

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Figure 5 – Helium gas hoses
The Cr odrive has one helium suppl outlet and one helium return inlet. The recommended
procedures for connecting and disconnecting the couplings are described below (for more
information read the Cr odrive Operation & Instruction Guide).
1. To revent damage to the cou lings and leakage of the helium, you must use two
s anners as shown in Figure 6.
2. Complete the fitting as quickl as possible to prevent leakage of the helium from the
couplings.
3. Note that helium hoses are pressurized with helium. When ou fit these components, ou
must follow the safet advice and instructions given in the instruction manual supplied with
them. Do not over bend or twist the helium hoses; do not allow damage to occur to the braid
on the outside of the hoses.
4. Connect the hose marked with the red band to the helium suppl connector on the Cr odrive.
Connect the other end of the hose to the helium suppl connector (marked with a red band)
on the PheniX Cooler.
5. Connect the hose marked with the green band to the helium return connector on the
Cr odrive. Connect the other end of the hose to the helium return connector (marked with a
green band) on the PheniX Cooler.
6. Check that the connecting surfaces of the couplings are clean.
7. Check that the sealing ‘O’ ring is in place.
8. Connect the coupling halves b hand until ou feel resistance.
9. Refer to the image below and rotate spanner (green arrow) whilst holding the other spanner
still (red arrow) to full tighten the coupling.
10. When tightening the hoses both at the Cr odrive and the PheniX coldhead, ensure the fittings
are tightened until a good resistance is felt. In the case of the Cr odrive fittings, the helium
connections should be tightened so that the two faces of the male and female fittings meet.
On the coldhead itself, the faces of the fittings will not meet but in order to ensure the
coupling is open make sure a good resistance is felt. A helpful indication is that approximatel
12 mm of thread on the male fitting can be seen when the coupling is properl tightened.

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Figure 6 – Connection of a helium hose to the Cryodrive using two s anners
NOTE
When the connection is full made, rotate one spanner in the opposite direction for one quarter turn
to ensure that the sealing ‘O’ ring is not over compressed. If ou over compress the sealing ‘O’ ring
the service life of the fittings will be reduced.
2.5.1. Helium gas pressure check
The location of the pressure gauge is illustrated in Figure 7. Whilst the Cr odrive is running, the
pressure indicated is significantl higher than the quiescent value of approximatel 16.5 bar. This is
best shown b a red label with a black line marking 16.5 bar. It is important to read the gauge at e e
level to ensure that pressure is at 16.5 bar. Under normal operating conditions it should be about 22
bar and will noticeabl oscillate b around 0.5 bar. It is good practice to monitor the Cr odrive charge
pressure, especiall if the s stem has been dismantled and reconnected recentl , as gas can be lost
during the attachment and disconnection of the high-pressure hoses. As mentioned before, if the
pressure is observed to have fallen, contact Oxford Cr os stems to arrange a re-charge.
IMPORTANT – If the Cryodrive is used for the first time
It is important to check the charge pressure of the Cr odrive compressor. In the quiescent state, the
pressure should read approximatel 16.5 bar (240 psi). If this pressure reads less than 15.5 bar (220
psi), contact Oxford Cr os stems. This check should be repeated, if possible, each time the unit is to
be turned on. Under normal operating conditions it should be about 22 bar and will noticeabl
oscillate b around 0.5 bar. It is good practice to monitor the Cr odrive charge pressure, especiall if
the s stem has been dismantled and reconnected recentl , as gas can be lost during the attachment
and disconnection of the high-pressure hoses.

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Figure 7 – Front of Cryodrive showing the ressure gauge
2.5.2. Cryodrive and Controller Cable Connections
Connect the PheniX Coldhead cable connector from the Cr odrive to the ba onet fitting on the
Cr ocooler Coldhead of the PheniX.
Connect the serial cable from the Cr odrive to the ‘Cr odrive’ socket on the back of the PheniX
Controller.
Connect the PheniX Coldhead Cable from the ‘Coldhead’ socket on the back of the Controller to the
multi-pin ba onet socket on the side of the PheniX cr ostat bod located next to the relief valve.
Connect the separatel supplied Cr opad serial cable from the ‘Serial’ socket on the back of the
PheniX Controller to an appropriate COM port on a PC.
The PheniX Controller requires connecting to power using the IC power cable supplied.
2.5. . Cooling water connection
1. Use hose clips to secure suitable water hoses (1/2-inch nominal internal diameter) to the water
connection nozzles.
2. Connect the suppl and return hoses to the cooling water inlet and outlet connectors as
marked on the rear of the Cr odrive.
3. Connect the water suppl hose to a cooling water suppl with an adequate flow rate and
temperature (see section 2.5.4).
4. Connect the water return hose to a suitable drain.
5. Turn on the cooling water suppl and check that there are no water leaks.

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2.5.4. Water cooling requirement
•Water cooling/chiller requirement: 3.0 kW
•Minimum flow rate: 1.5 L/min
•Maximum flow rate: 7.0 L/min
•Maximum water suppl pressure: 101.5 psig.
•Minimum water suppl temperature (at start –up): +4ºC.
•Maximum water discharge temperature: +33ºC.
•Water qualit pH range: 6.0 to 8.0.
•Maximum calcium carbonate concentration: 75 ppm.
Cooling water requirements
10
12
14
16
18
20
22
24
26
28
30
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
Water flow rate (Litre per minute)
Water temperature (C)
Cryodrive 3.0
Figure 8 – Cooling water requirements
Cooling water flow rate vs pressure drop
(with outlet flow to open drain)
5
10
15
20
25
30
35
40
45
50
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
Water flow rate (Litre per minute)
Pressure drop (psig)
Figure 9 – Cooling water flow rate vs ressure dro

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2.6. Vacuum System
Oxford Cr os stems currentl provide the Pfeiffer Turbomolecular Vacuum Pumping Station shown
in Figure 10. If an alternative turbo pumping station is to be used, please refer to the relevant
manufacturer’s instruction manuals.
Figure 10 – PheniX Vacuum Pum Station
NOTE
A variet of manuals are supplied with the Pfeiffer Vacuum S stem for all its components. The
information below outlines the simple steps needed to use this s stem with the PheniX. Further
information is available in the manuals, if necessar .
WARNING
Before installation of the Vacuum S stem we urge ou to read all the Operating Instructions
supplied with the Pfeiffer Vacuum S stem for all its components. You will find instructions
regarding the safet , storage and installation which must be followed to prevent damage to the
equipment or personnel.
2.6.1. Connecting up the Vacuum System
NOTE
When assembling the vacuum components ensure that all vacuum sealing surfaces are free from
dust to guarantee a good vacuum seal.

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1. Remove an packing material from around the Vacuum S stem.
2. Remove the dust cap from the top of the Turbo pump.
3. Fit the Meshed Centring Ring, ‘T’ piece and NW40-25 reducer on the top of the Turbo pump
using one of the NW25 clamps and centring rings supplied.
4. Fit the Wide Range Gauge to the top of the ‘T’ piece using one of the NW25 clamps and
centring rings provided.
5. Fit the NW16 flexible hose to the remaining NW16 fitting on the ‘T’ piece using a clamp and
centring ring.
6. Using an NW10/16 clamp and centring ring, fit the NW10 flexible vacuum hose to the port
on the Cr o Seal Diaphragm Pump.
7. Using an NW10/16 clamp and NW16 centring ring, fit the NW16 flexible vacuum hose from
the top of the Turbo T piece to the Cr o Vac port on the PheniX.
8. Using an NW10/16 clamp and NW10-16 centring ring, fit the NW10 flexible vacuum hose
from the Cr o Seal Diaphragm Pump to the Cr o Seal port on the PheniX.
The Vacuum S stem is designed as a user-friendl s stem, which is straightforward to operate. The
unit comprises a small Diaphragm Pump and a Turbo Station with an additional integrated
Diaphragm Pump along with a Wide Range Gauge and a Displa and Operating Unit:
1. Cr o Vac Turbo Station and integrated Diaphragm Pump - this turbo s stem pumps the main
bod of the PheniX.
2. Seal Vac Diaphragm Pump - this pump evacuates the rotating seal of the PheniX to ensure
that when the seal moves, the main bod vacuum is then unaffected.
Both of these pumps are independent of one another. Although the mains power is fed through a
common junction box, both the Cr o Vac Turbo Station and Seal Vac Diaphragm Pump have
separate power switches as indicated in the pictures below.
Power Switch for Seal Vac
Dia hragm Pum
Power Switch for Cryo Vac Turbo
Station and integrated Dia hragm
Pum

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As outlined above, unpack the Vacuum S stem and ensure that all packing material has been removed
from around the unit including from around the integrated Diaphragm Backing Pump inside the Cr o
Vac Turbo Station. Fit the Wide Range Gauge head and ‘T’ assembl to the top of the Turbo Station
and using the supplied vacuum hoses and fittings, connect the vacuum lines from the Cr o Vac Turbo
Station and the Seal Vac Diaphragm Pump to the PheniX. This is normall performed b the
Installation Engineer.
2.6.2. Switching On the Seal Vac Diaphragm Pump
Once the unit is connected up, switch the pump on using the green power switch. The pumping of air
can cause moisture/vapour to condense in the pump and can have an effect on the attainable final
pressure. To expel these condensates, gas ballast air can be admitted to help obtain these final
pressures. To ensure a good vacuum, open both Gas Ballast Valves for an hour during initial pumping
to ensure an residual water vapour and air in the lines and PheniX are removed. Figure 11 below
illustrates how sleeve ‘43’ should be moved to position ‘Y’ to open the gas ballast valve. Be sure not to
leave the valve open permanentl . Note: Always remember to close the ballast valve after use.
Figure 11 – Ballast valve in the closed osition.
2.6. . Switching On the Cryo Vac Turbo Station
The Cr o Vac Turbo Station has two buttons that need to be pressed to start the Turbo Station. One
is the main power switch inside the hole on the front of the unit and this should be switched on first.

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The Displa Unit on the front of the Turbo Station then goes through an initialisation process. Once
the s stem has completed its initialisation process, the screen should sa :
001: Heating
off
340: XXXX mbar (where XXXX is a ressure reading)
Scroll through to select ‘309: Act rots d’ which will indicate the rotation speed of the turbo when
being used. It is recommended that the s stem is left on this menu item when running.
Press the ‘ON’ – ‘OFF’ ke on the Turbo Station. This will start the Turbo Station.
Again, like with the Seal Vac Diaphragm Pump, it ma be necessar to open the Ballast Valve on the
backing diaphragm pump of the Turbo Station, see Figure 11. This will remove an residual water
vapour and air in the vacuum lines and bod of the PheniX. This is necessar if the vacuum reading
begins to rise (or does not drop) during the earl stages of pumping down. Open the Ballast Valve for
an hour.
The rotation speed of the turbo pump will reach 1500 Hz within 10 minutes. If the turbo does not
reach 1500 Hz, it is possible that a vacuum leak exists within the s stem. The Vacuum S stem should
be stopped and all vacuum connections should be checked to ensure the are clean and sealed
properl . If the s stem fails to reach 1500 Hz, contact Oxford Cr os stems.
T picall , the vacuum pressure should reach 10-3 to 10-4 mbar within 15 to 20 minutes. The vacuum
should be pumped for one hour before the PheniX is switched on and b then, the vacuum should
have reached the 10-4 to 10-5 mbar range.
2.6.4. Turbo station display unit
The displa unit on the front of the Turbo Station then goes through an initialisation process. Once
the s stem has completed its initialisation process, the screen should be read for use. For further
information please read the Pfeiffer Vacuum DCU Display and Operating Unit Operating Instructions.
1. LCD Displa
2. Status Displa
3. “Error Acknowledgement” ke
4. Ke “Left”
5. Ke “Right”
6. “Turbo Station ON/OFF” ke
7. Red illuminating diode for error status
8. Green illuminating diode for operating
status
Figure 12 – Turbo station dis lay unit

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2.6.5. LED status
The red LED (error status) and green LED (operational status) can take on the following conditions:
Red LED
Illuminates: Collective error messages
Flashes: Warning
Green LED
Illuminates: Mains power unit OK, pumping station ON
Flashes: Mains power unit OK, pumping station OFF
Blinks: Mains power failure
2.6.6. Symbols
B pressing the Left or Right arrow ke s, it’s possible to scroll through a series of menu options as
shown in Table 3
Symbol Arrow Explanation
Pump acceleration
No arrow Not accelerating
Accelerating (flashing)
Heating Not in use for PheniX
Standb No arrow Not in standb mode
In standb mode
Under remote control Not in use for PheniX
Switch-point attained
(represents
No arrow Switch-point not
attained
Switch-point attained
Excessive temperature
No arrow Temperature OK
Excessive pump
temperature
Excessive temperature
of pump electronics
Excessive temperature
of pump and pump
electronics
Final rotation speed
attained
No arrow Final rotation speed not
reached
Final rotation speed
reached
Table 3 – O tions on the turbomolecular um ing station